SENSORES INDUCTIVOS SERIE SI

WORKING PRINCIPLE
By applying a voltage to the oscillator coil an alternating inductive field is
created in front of the active surface of the unit.
When a metallic object (steel, aluminium, copper, brass etc.) enters this
field from any direction and the state of the oscillator is modified until the
threshold of the trigger is inverted this induces a change in the final stage
and the subsequent command of an external load.
The intervention distance depends on the type of metal and as described
earlier, in the reduction factors. All the sensors are protected against inver-
sion of polarity and electrical disturbances of inductive sources and can be
supplied with short circuit protection in the D.C. version. The main advan-
tages offered by proximity sensors in relation to normal limit switches are
mainly unlimited duration as they have no moving parts (wheels, springs
etc.) lack of maintainance requirement and elimination of possible false
contacts due to contact movement.
APPLICATIONS
Inductive sensors have wide uses in many applications, even in the most diffi-
cult working conditions for example in the presence of oils, powders, liquids
and vibrations which do not have any effect on their secure functioning.
AECO sensors are mounted on machine tools, textile machines, transfer lines,
transport systems, packaging equipment, in the automobile industry and in all
BLOCK DIAGRAM OF NON AMPLIFIED INDUCTIVE SENSOR
applications where solutions for automation are required.

STANDARDIZED SENSING PLATE

Its use allows the comparison of the values of sensing distance (see table). The
measuring method is defined by the european standard EN 50010. The nor-
malized plate is square and has a thickness of 1 mm, the material of this plate BLOCK DIAGRAM OF AMPLIFIED INDUCTIVE SENSOR
must be steel (Fe37). Other materials mean that different intervention dis-
tances are obtained. The length of the sides of the plate must correspond to REAL INTERVENTION DISTANCE Sr
the diameter of a circle that is the active surface of the sensor. A larger plate This is the distance measured according to the EN 50010 standard at nominal
does not result in an increase in the nominal intervention distance, however a temperature and voltage: 0,9Sn ≤ Sr ≤ 1,1Sn.
reduction in the plate reduces the intervention distance.
INTERVENTION DISTANCE Su
This is the distance measured according to the EN 50010 standard at a speci-
NOMINAL INTERVENTION DISTANCE Sn fied temperature and voltage between the allowed limits 0,9Sr ≤ Su ≤ 1,1Sr.
The nominal distance is defined as the switching value where variations due to
TIGHTENING TORQUES
changes in temperature and voltage are taken into account.
To prevent mechanical damage to the proximity switch when installing, cer-
TABLE OF COMPARISON: SENSOR - DISTANCE - PLATE tain tightening torques on the mounting nuts should not be exceeded.

DIAMETER DISTANCE DISTANCE DOUBLE SWITCH DOUBLE SWITCH SENSING

Sn DISTANCE DISTANCE PLATE A B
OR Sn
NOT Sn Sn Fe 37
SIZE EMBEDDABLE EMBEDDABLE EMBEDDABLE NOT EMBEDD. SIDE x THICKNESS
mm mm mm mm mm
4-5 0.8 - - - 5x1
6,5 - 8 1 2 2 3 8x1
12 2 4 4 8 12 x 1
14 3 5 - - 14 x 1
18 5 8 8 16 18 x 1 MODELS DIM. A TIGHTENING TORQUE (Nm) max.
30 10 15 15 20 30 x 1 (mm)
A B
SIP A8 - C8 2 - - - 8x1
2 SI5 4 0.5 1.5
SIP 10 - - - 8x1
SIP 12 2 4 - - 12 x 1 SI8 7 8 12
SIP 17 - 5 - - 12 x 1 SI12 10 12 28
SIP 25 5 - - - 18 x 1 SI18 10 30 40
SIP 40 15 20 - - 45 x 1
SIQ 80 - 50 - 100 x 1 SI30 13 35 40

CABLE EXIT - STANDARD AND CENELEC TYPES

SI 30 Cenelec exit
SI12 SI18
Cenelec exit Cenelec exit

6 20 12 20
7 21

N.B.: On request the sensors with standard cable exit type are also availbale with cenelec cable exit type.

4 WWW.VARITEL.COM
INDUCTIVE SENSORS SI SERIES
SENSOR VERSION N IN ACCORDANCE WITH of sensor is protected against short circuit,
NAMUR STANDARDS - DIN 19234 (2 wire) absolutely protected against polarity and peaks VERSION N
created by the disconnection of inductive loads.
These are two-wire non amplified D.C. sensors
BROWN
+

INDUCTIVE
These sensors can be supplied together with
which contain only the oscillator and are adapt-
power supplies: ALNC - ALTP. They are adapted BLUE
ed to control an electronic amplified thereshold --
for inputs of programmable controllers.
circuit.
Only a few components are needed, thus
inevitably guaranteeing for this type of sensor SENSORS VERSION A FOR ALTERNATING VERSION B
the maximum operational safety and reliability. VOLTAGE (2 wire)
Thanks to its low-resistance termination this sen- These are two-wire sensors which contain a
BROWN
-- / +
sor is not susceptible to inductive or capacitive thyristor output amplifier in addition to the
irradiations into the connecting lead with the NO
BLUE
+ /--
oscillator. The load which is connected in series
amplifier. They can be supplied with EEx ia IIc T4 with the sensor is passed through by the same
approval. They can be supplied together with residual current that it is supplied by. It is partic-
BROWN
-- / +
power supplies: ALNC - ALN2 - ALTP. ularly important to pay attention to the low con-
sumption relay, in fact it is important to ensure NC
BLUE
+ /--
that:
SENSOR VERSION B FOR DIRECT VOLTAGE - The required current for the switching of the
(2 wire)
relay is EQUAL to or SUPERIOR to the minimun VERSION C
output current required by the sensor.
These are two-wire amplified sensors which con- - The current required for the secure releasing of
BROWN
+ BROWN
+
BLACK BLACK
tain an ouput amplifier with function N.O. or the relay is SUPERIOR to the residual current of BLUE
N.C. in addition to the oscillator and can pilot a the sensor.
NPN NO
BLUE
-- PNP NO --
load connected in series. However due to this If these parameters are not respected there will
system a residual current flows through the load be an uncertain switching of the relay.
BROWN

BLACK
+ BROWN

BLACK
+
even when in the open state. In addition a volt- Furthermore attention must be given to high BLUE

age drop occurs to the sensor when it is in the NPN NC

BLUE
-- PNP NC --
impedance imput connections of electronic
closed state. Attention must be paid to these commands as the residual current in the sensor
restrictions when selecting the relays or elec-
BROWN
BLACK
+ BROWN
BLACK
+
could be sufficient to cause activation. WHITE WHITE
tronic controls required for connections. They In the closed state a voltage drop can be found BLUE BLUE

are adapted for inputs of programmable con-

NPN NO+NC -- PNP NO+NC --
this should be taken into account especially
trollers. when there is a low voltage supply.
They are also protected against voltage tran- VERSION A
sients coming from the power supply or gener- BROWN
L1
SENSORS VERSION C FOR DIRECT VOLTAGE ated by the load.
(3 and 4 wire) They are compatible with P.L.C. units. BLUE
NO N
These are amplified D.C. sensors which contain
an output amplifier in addition to the oscillator. BROWN
L1
They are supplied as 3 wires with function N.O.
or N.C. and as 4 wire with antiphase outputs in BLUE
NC N
the types NPN and PNP as standard this version

SUGGESTION FOR SUPPLYING VOLTAGE TO INDUCTIVE SENSORS

EXAMPLE A EXAMPLE B

Voltage stabilizer
CA
Vac Vca CA
Vac Vca
50-60 Vac + Vac +
50-60Hz
Hz 50-60 Hz
50-60 Hz

C Vcc
Vdc C Vcc
Vdc

_ _

The supply voltage should be adjusted according to the characteristics of The supply voltage Vdc of the sensor should be filtered with a capacity
the sensor used. It is recommended to use a trasformer with secondary C at least 470 µF for each 200 mA used.
voltage Vac lower than the direct voltage Vdc required. If the supply voltage Vdc is high it is recommended to follow the dia-
The secondary voltage Vac is found as follows: gram B with a proper voltage stabilizer.
Vac = (Vdc + 1) : 1,41

WWW.VARITEL.COM 5
NAMUR INDUCTIVE SENSORS
CYLINDRICAL HOUSING Ø 6.5 - M8-M12-M14-M18-M30
2 WIRES D.C. - VERSION N

EMBEDDABLE (FLUSH MOUNTING) Ø 6,5 Ø 6,5 M8 x 1 M8 x 1 M12 x 1 M12 x 1

NOT EMBEDDABLE

4
2,5
2,5
(NON FLUSH MOUNTING)

28

28
30

41
30
30

30

41
TECHNICAL CHARACTERISTICS
Dimensions mm

MODELS WITH CABLE SI 6.5 - N1 SI 6.5 - NE2 SI 8 - N1 SI 8 - NE2 SI 12 - N2 SI 12 - NE4

4
2,5
2,5

28
28

28
28
30
30

45
44
39
39

45
44
MODELS WITH CONNECTOR SI 6.5 - N1 H1 SI 6.5 - NE2 H1 SI 8 - N1 H1 SI 8 - NE2 H1 SI 12 - N2 H SI 12 - NE4 H
Switching distance (Sn) mm 1 2 1 2 2 4

Continuous voltage (residual ripple ≤10%) V 8,2 ("5 ÷ 30" see note 1)

Absorption current at 8.2V mA In presence of metal ≤ 1 mA - In absence of metal ≥ 3 mA

Switching frequency Hz 2000 2000 2000

Repeatability % of Sn ≤3

Temperature limits °C -25 ÷ +70

Degree of protection IP 67 (With H1 - H depending on connector)

Housing Nickelled brass

Cable PUR blue 2m 2 x 0.25 mm2 2 x 0.25 mm2 2 x 0.25 mm2

Connector plug H1 H1 H
NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 -

WORKING PRINCIPLE

Current (mA) Metallic In presence of metal I ≤ 1 mA

plate
1 KΩ
3
+ The NAMUR sensors are electronic devices whose
8.2Vdc absorbed current varies in the presence of a metal-
-- lic object. The difference between these sensors
2 and traditional sensors is the absence of amplifier
In absence of metal I ≤ 3 mA trigger stages.
1,3 1 KΩ
1
+
Note 1: In applications outside security conditions
8.2Vdc
-- the sensors can be used in the 5-30Vdc range.
Distance Sn (mm)

6 WWW.VARITEL.COM
 NAMUR INDUCTIVE SENSORS
CONFORMING TO NAMUR STANDARDS (DIN 19234)
APPROVAL EEx ia IIc T4*

INDUCTIVE
M14 x 1 M14 x 1 M18 x 1 M18 x 1 M30 x 1.5 M30 x 1.5

7,5

15
4

28

27
28
30

27
36

30

47

43
36

47

43
SI 14 - N3 SI 14 - NE5 SI 18 - N5 SI 18 - NE8 SI 30 - N10 SI 30 - NE15

15
7,5

27
28

28

27
51
51

51

51
- - SI 18 - N5 H SI 18 - NE8 H SI 30 - N10 H SI 30 - NE15 H
3 5 5 8 10 15

8,2 ("5 ÷ 30" see note 1 at page 6)

In presence of metal ≤ 1 mA - In absence of metal ≥ 3 mA

2000 1000 500

≤3

-25 ÷ +70

67 (With H depending on connector)

Nickelled brass

2 x 0.25 mm2 2 x 0.50 mm2 2 x 0.50 mm2

Non previsto H H
- NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 -

APPLICATIONS
The NAMUR (DIN 19234) proximity switches are electronic sensors whose absorbed current varies in the presence of
metallic objects.
The reduced dimensions, the low values of voltage, current and impedance (unaffected by overvoltage and excessive
current from inductive or capacitive sources), allows them to be used in various applications in both intrinsically safe and
normal areas.
Applications in intrinsically safe areas (explosive atmospheres). *
The sensor must be used with an intrinsically safe relay or an equivalent static input suitable for intrinsically safe appli-
cations.
Standard applications (normal atmospheres).
The sensor must be used with AECO supply and amplifier units ALNC, ALN2 or similar.

* When ordering, add “Ex” (Es. SI8-N1 Ex).

WWW.VARITEL.COM 7
NAMUR INDUCTIVE SENSORS
RECTANGULAR HOUSING SIPA8 - SIPC8 - SIP10 - SIP12 - SIP17 - SIP40 - SIQ80
2 WIRES D.C. - VERSION N

EMBEDDABLE (FLUSH MOUNTING)

Sensing surface
NOT EMBEDDABLE Sensing surface
3 8x8
Sensing surface
(NON FLUSH MOUNTING) 3 8x8
16 10,5
10,3

10
= =

10

20

= 28 =

17,9÷19,4
40
20
40
20

22,2
M3

20

4,6
10
TECHNICAL CHARACTERISTICS
10

3,3

M3
Dimensions mm

MODELS WITH CABLE SIP A8 - N1.5 SIP C8 - N1.5 SIP 10 - N2

Sensing surface Sensing surface Sensing surface

Sensing
3 8x8 3 8x8 16 surface
10,3
Sensing 10 Sensing = =
10

surface surface

16
17,9÷19,4
40
20

40

= 28 =
40
20

40

22,2
M3
M3

49
49

10,5
10
10

4,6
9
9

9
MODELS WITH CONNECTOR SIP A8 - N1.5 H1 SIP C8 - N1.5 H1 SIP 10 - N2 H1
Switching distance (Sn) mm 1.5 1.5 2

Continuous voltage (residual ripple ≤10%) V 8,2 ("5 ÷ 30" see note 1 at page 6)

Absorption current at 8.2V mA In presence of metal ≤ 1 mA - In absence of metal ≥ 3 mA

Switching frequency Hz 2000 2000 1000

Repeatability % of Sn ≤3

Temperature limits °C -25 ÷ +70

Degree of protection IP 67 (With H1 depending on connector)

Housing Anodized aluminium Plastic

Cable PUR blue 2m 2 x 0.25 mm2 2 x 0.25 mm2 2 x 0.25 mm2

Connector plug H1 H1 H1
NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 -
WIRING DIAGRAMS WITH CABLE CONNECTION WITH H1 - H - K PLUG ADJUSTABLE SENSITIVITY SIP 40
OR TERMINAL BLOCK FOR THE CONNECTORS SEE PAGE 85

1
4
Brown VIEW OF MALE CONNECTOR H1
5 2
+ 1 3 1 = Brown / + 4 3
3 = Blue / _
--
Blue 4
VIEW OF MALE CONNECTOR H
1 3 1 = Brown / +
+ 3 = Blue / _
2

--
1

VIEW OF MALE CONNECTOR K NOTE: In the SIP 40 sensor the oscillator is contained in a
1 = Blue / _ module which clips into the body whose surface can then
N.B.: On request is available cable for sensors with 1 2
be sensitive on five different positions. The surface chosen
2 = Brown / +
different length 3.5 - 7.5 - 5 - 10 metres. can be identified by applying the circular adhesive label.

8 WWW.VARITEL.COM
 NAMUR INDUCTIVE SENSORS
CONFORMING TO NAMUR STANDARDS (DIN 19234)
APPROVAL EEx ia IIc T4*

INDUCTIVE
113
Sensing surface Sensing surface 17 x 17
26
18 = = 80
12 80
Ø 3,8

1/2"Gas
40
6
10

25
28

10,5 Ø 3,2
40

= = 60 44,5
32

50
16

=
=

M3

65

=
40
14

30
=
Ø 3,2
5,3 Sensitivity Adjustment

SIP 12 - N2 SIP 12 - NE4 SIP 17 - NE5 SIP 40 - N15 SIP 40 - NE20 SIQ 80 - NE50

Sensing surface 40
26
17

18 80
12 80
Ø 3,8 Sensing surface
17
6
10

40
18
=
16

25
40
32

28

10,5 50
Ø 3,2
=

= =
22

M3 11 65
14

3
9 3

Ø 3,2
Sensitivity Adjustment

SIP 12 - N2 H1 SIP 12 - NE4 H1 SIP 17 - NE5 H1 SIP 40 - N15 K SIP 40 - NE20 K SIQ 80 - NE50 K
2 4 5 15 20 10 ÷ 60 (Adjustable)

8,2 ("5 ÷ 30" see note 1 at page 6)

In presence of metal ≤ 1 mA - In absence of metal ≥ 3 mA

2000 2000 500 100

≤3

-25 ÷ +70

67 (With H1 depending on connector) 65 (IP67 with cable)

Plastic

2 x 0.25 mm2 2 x 0.50 mm2 Terminal block (On request cable) 2 x 0.50 mm2

H1 H1 K K
- NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 -
SENSITIVITY ADJUSTMENT INSTRUCTIONS FOR CORRECT INSTALLATION
A

TRIMMER Embeddable (A)mm (A) mm (B) mm

Cylindrical models SI 6.5 ≥ 4 ≥ 16 ≥ 8
SI 8 ≥ 4 ≥ 16 ≥ 8
A SI 12 ≥ 6 ≥ 24 ≥ 12
-- + Embeddable SI 14 ≥ 7 ≥ 28 ≥ 14
Rectangular models SI 18 ≥ 9 ≥ 36 ≥ 18
SI 30 ≥ 15 ≥ 60 ≥ 30
This sensor is supplied with a trimmer for the sensi-tivity SIP A8 ≥ 2 - -
adjustment. The sensitivity increases when the trimmer is A B B
SIP C8 ≥ 2 - -
rotated in the clockwise direction and de-creases in the anti-
clockwise direction. Avoid using for a capacity greater than
Not embeddable SIP 10 ≥ 10 - ≥ 0
Cylindrical models SIP 12 ≥ 6 ≥ 12 ≥ 6
60 mm referred to a square piece of (FE 37) steel of 1 mm
thickness the side of which is equal to 100 mm. When set- SIP 17 - ≥ 20 ≥ 6
ting the sensor keep in consideration all other metallic
A B B SIP 40 ≥ 30 ≥ 50 ≥ 15
objects nearby, in fact setting is suggested to be made when SIQ 80 - ≥ 450 ≥ 70
the sensor is installed in the normal working conditions. Not embeddable
The sensor is supplied already pre-set to 50 mm sensitivity. Rectangular models N.B. A = Mutual interference - B = Interference with metallic part

* See page 7 - Applications

WWW.VARITEL.COM 9
NAMUR INDUCTIVE SENSORS
RING HOUSING SIA05 - SIA12 - SIA15 - SIA22 - SIA30 - SIA44 - SIA63 - SIA100
2 WIRES D.C. - VERSION N

NOT EMBEDDABLE VIEW A

(NON FLUSH MOUNTING) 30
8
D

60
A SENS. ADJUST.

40
5
ø4,2
TECHNICAL CHARACTERISTICS CABLE
20
= =
Dimensions mm

MODELS WITH CABLE SIA 05 - NE SIA 12 - NE SIA 15 - NE

VIEW A
30 8
D

60
A SENS. ADJUST.

40
5
ø4,2

20 H1 PLUG (M8)
= =

MODELS WITH CONNECTOR SIA 05 - NE H1 SIA 12 - NE H1 SIA 15 - NE H1

Hole diameter (D) mm 5 12 15

Continuous voltage (residual ripple ≤10%) V 8,2 ("5 ÷ 30" see note 1 at page 6)

Absorption current at 8.2V mA In presence of metal ≤ 1 mA - In absence of metal ≥ 3 mA

Switching frequency (min-max) Hz 600 ÷ 1500 600 ÷ 1000 600 ÷ 1000

Repeatability % of Sn < 0.3

Temperature limits °C -20 ÷ +60

Degree of protection IP IP 65

Housing Plastic

Cable PUR blue 2m 2 x 0.25 mm2

Connector plug H1 H1 H1
NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 -

SPECIFICATIONS MIN. DIMENSIONS OF THE PLUG H1 - H OUTPUT SENSITIVITY ADJUSTMENT

OBJECT (Fe37) TO DETECT POSITION VIEW
SENS.
In ring sensors, the sensing is carried out inside Model Length Diameter ADJUST. SIA 05-12-15-22
H1 PLUG
the ring. The sensor intervenes when a metallic mm mm
object is introduced. SIA05 1 0.7 SENS.
They are particularly suitable for checking the ADJUST. SIA 30
SIA12 2 1.2 H PLUG
presence and counting of small metal objects,
SIA15 2 1.2
screws, nuts washers etc. or for any similar ope-
SENS.
ration. Also useful in verifying breakage of metal SIA22 6 3 ADJUST. SIA 44-63
wires that pass through the ring. The ring senso- SIA30 7 4 H PLUG

r’s housing is in plastic and electrical attachments SENS.

SIA44 9 5 ADJUST.
can be made by means of a cable or M8 and
M12 connectors depending on the model type. SIA63 12 6 SIA 100
SIA100 20 12
H PLUG

10 WWW.VARITEL.COM
 NAMUR INDUCTIVE SENSORS
CONFORMING TO NAMUR STANDARDS (DIN 19234)
APPROVAL EEx ia IIc T4*

INDUCTIVE
VIEW A VIEW A VIEW A
41 12 SENS. ADJUST. SENS. ADJUST.

29
20
ØD 85 ØD 140
ØD

165
105
SENS.
70,5

A
40
45

ADJUST.

80
55
Ø5,5 Ø6,4
Ø 4,3
20
CABLE

15
7,5
30 CABLE A
CABLE 100 A
60

SIA 22 - NE SIA 30 - NE SIA 44 - NE SIA 63 - NE SIA 100 - NE

VIEW A VIEW A VIEW A
41 12 SENS. ADJUST. SENS. ADJUST.

20

29
ØD 85 ØD 140
ØD

165
SENS. 105
70,5

A
40
45

ADJUST.

80
55

Ø5,5 Ø6,4
Ø 4,3

20 H PLUG (M12) H PLUG (M12)

15
7,5

H PLUG (M12) A
30 60 100 A

SIA 22 - NE H SIA 30 - NE H SIA 44 - NE H SIA 63 - NE H SIA 100 - NE H

22 30 44 63 100

8,2 ("5 ÷ 30" see note 1 at page 6)

In presence of metal ≤ 1 mA - In absence of metal ≥ 3 mA

600 ÷ 1000 600 ÷ 800 250 ÷ 600 100 ÷ 200 100

< 0.3

-20 ÷ +60

IP 65

Plastic

2 x 0.25 mm2 2 x 0.50 mm2

H H H H H
- NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 - NAMUR DIN 19234 - EEx ia IIc T4 -
SELECTION OF RING SENSOR
Selection should be made based on the minimum hole diameter required.
INSTRUCTIONS FOR CORRECT INSTALLATION
In this way the sensitivity adjustment can be made within normal parameters and need not be pushed to the maximum
risking the proper functioning of the unit. Fig. 1 Fig. 2
USE WITH A DELAYED AMPLIFIERS B
S A
All types of ring sensor can work in combination with a delayed amplifier of the programmable ALTP series or ALNC series
which ensures the sensing of small objects in rapid movement. ≥S ≥S ≥S
SENSITIVITY ADJUSTMENT
After having followed the instructions regarding the choice of the most suitable unit it is recommended that the sensiti-
vity adjustment be carried out when the sensor is installed in the final position taking into account how much metal mass
is close by which could alter its functioning. The sensitivity increases turning the trimmer clockwise.
EFFECTS OF METAL IN THE CLOSE VICINITY
If a moving metal part is close to the sensing area the functioning can be disturbed.
In order to avoid this, install the units some distance from metallic objects. Ensure that this does not interfere with the
functioning. When applying to a metal surface make sure not to apply too close to ring hole otherwise sensor may not-
function correctly. Model SIA05 SIA12 SIA15 SIA22 SIA30 SIA44 SIA63 SIA100
USE OF SENSOR
A distance equal to the width of the sensor should be left between each object that passes through the sensor. If more A (Fig. 1) mm 25 30 30 60 60 300 300 600
than one sensor is to be installed in close vicinity, the minimum distance indicated between sensors should be maintai- B (Fig. 2) mm 10 10 10 20 20 250 250 650
ned as per chart indications.

* See page 7 - Applications

WWW.VARITEL.COM 11
INDUCTIVE SENSORS Ø 4mm
CYLINDRICAL HOUSING
3 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

STANDARD
EMBEDDABLE (FLUSH MOUNTING)
20
LED LED x 4

TECHNICAL CHARACTERISTICS 28 46

Dimensions mm

NO SI4 - C 0.8 NPN NO SI4 - C 0.8 NPN NO H1

NPN
AMPLIFIED NC SI4 - C 0.8 NPN NC SI4 - C 0.8 NPN NC H1
3 WIRES D.C. NO SI4 - C 0.8 PNP NO SI4 - C 0.8 PNP NO H1
PNP
NC SI4 - C 0.8 PNP NC SI4 - C 0.8 PNP NC H1
Switching distance (Sn) mm 0.8 0.8

Continuous voltage (residual ripple ≤10%) V 6 ÷ 30

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 2000

Repeatability % of Sn ≤3

Max output current mA 150

Absorption at 24Vdc mA < 10

Voltage drop (sensor ON) V < 1.4

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector

Housing Stainless steel

Cable SALGUM 2m 3 x 0.14 mm 2

Connector plug H1

WIRING DIAGRAMS CONNECTION WITH H1 PLUG

FOR THE CONNECTORS SEE PAGE 85

BROWN
+ BROWN
+
BLACK BLACK

PNP NO
BLUE
-- NPN NO
BLUE
--
4 VIEW OF MALE CONNECTOR H1:
1 = Brown / +
BROWN
+ BROWN
+ 3 = Blue / _
BLACK BLACK 1 3
4 = Black / output NPN-PNP / NO-NC
PNP NC
BLUE
-- NPN NC
BLUE
--

N.B.: On request is available cable for sensors with different length

3.5 - 7.5 - 5 - 10 metres.

12 WWW.VARITEL.COM
 INDUCTIVE SENSORS M5 x 0.5
CYLINDRICAL HOUSING
3 WIRES D.C.
CONFORMING TO EN 50044

INDUCTIVE
VERSION-C

23 20
LED LED x 4

28 46

SI5 - C 0.8 NPN NO SI5 - C 0.8 NPN NO H1

SI5 - C 0.8 NPN NC SI5 - C 0.8 NPN NC H1
SI5 - C 0.8 PNP NO SI5 - C 0.8 PNP NO H1
SI5 - C 0.8 PNP NC SI5 - C 0.8 PNP NC H1
0.8 0.8

6 ÷ 30

< 10%

2000

≤3

150

< 10

< 1.4

Incorporated

Incorporated

- 25 ÷ + 70

67 Depending on connector

Stainless steel

3 x 0.14 mm 2

H1

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE

D ≥D/2 D

Attention, please use care to

prevent mechanical damage.
Side by side mounting Flush mounting (See page 4)

WWW.VARITEL.COM 13
INDUCTIVE SENSORS Ø 6.5mm
CYLINDRICAL SHORT HOUSING S SERIES
3 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

EXTENDED SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING)
35
NOT EMBEDDABLE
(NON FLUSH MOUNTING) LED LED X 4

TECHNICAL CHARACTERISTICS 35 44

Dimensions mm

NO SI6.5 - DC 2 NPN NO S SI6.5 - DC 2 NPN NO H1 S

NPN
AMPLIFIED NC SI6.5 - DC 2 NPN NC S SI6.5 - DC 2 NPN NC H1 S
3 WIRES D.C. NO SI6.5 - DC 2 PNP NO S SI6.5 - DC 2 PNP NO H1 S
PNP
NC SI6.5 - DC 2 PNP NC S SI6.5 - DC 2 PNP NC H1 S
Switching distance (Sn) mm 2 2

Continuous voltage (residual ripple ≤10%) V 6 ÷ 30

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 2000

Repeatability % of Sn ≤3

Max output current mA 200

Absorption at 24Vdc mA < 12

Voltage drop (sensor ON) V < 1.8

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector

Housing Stainless steel

Cable PVC 2m 3 x 0.14 mm 2

Connector plug H1

WIRING DIAGRAMS CONNECTION WITH H1 PLUG

FOR THE CONNECTORS SEE PAGE 85

BROWN
+ BROWN
+
BLACK BLACK

PNP NO
BLUE
-- NPN NO
BLUE
--
4 VIEW OF MALE CONNECTOR H1:
1 = Brown / +
BROWN
+ BROWN
+ 3 = Blue / _
BLACK BLACK 1 3
4 = Black / output NPN-PNP / NO-NC
PNP NC
BLUE
-- NPN NC
BLUE
--

N.B.: On request is available cable for sensors with different length

3.5 - 7.5 - 5 - 10 metres.

14 WWW.VARITEL.COM
 INDUCTIVE SENSORS Ø 6.5mm
CYLINDRICAL LONG HOUSING
3 WIRES D.C.
CONFORMING TO EN 50044

INDUCTIVE
VERSION-C

35
48
LED LED x 4 LED LED X 4

3 35 3 44 50 57

SI6.5 - DCE3 NPN NO S SI6.5 - DCE3 NPN NO H1 S SI6.5 - DC2 NPN NO SI6.5 - DC2 NPN NO H1
SI6.5 - DCE3 NPN NC S SI6.5 - DCE3 NPN NC H1 S SI6.5 - DC2 NPN NC SI6.5 - DC2 NPN NC H1
SI6.5 - DCE3 PNP NO S SI6.5 - DCE3 PNP NO H1 S SI6.5 - DC2 PNP NO SI6.5 - DC2 PNP NO H1
SI6.5 - DCE3 PNP NC S SI6.5 - DCE3 PNP NC H1 S SI6.5 - DC2 PNP NC SI6.5 - DC2 PNP NC H1
3 3 2 2

6 ÷ 30

< 10%

2000

≤3

200

< 12

< 1.8

Incorporated

Incorporated

- 25 ÷ + 70

67 Depending on connector 67 Depending on connector

Stainless steel

3 x 0.14 mm 2
3 x 0.14 mm2

H1 H1

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Flush mounting

WWW.VARITEL.COM 15
INDUCTIVE SENSORS M8 x 1
CYLINDRICAL SHORT HOUSING S SERIES
3 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

EXTENDED SWITCHING DISTANCE 28 28 28
EMBEDDABLE (FLUSH MOUNTING) LED x 4
LED LED
NOT EMBEDDABLE
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
35 44 35
Dimensions mm

NO SI8 - C 1 NPN NO S SI8 - C 1 NPN NO H1 S SI8 - DC 2 NPN NO S

NPN
AMPLIFIED NC SI8 - C 1 NPN NC S SI8 - C 1 NPN NC H1 S SI8 - DC 2 NPN NC S
3 WIRES D.C. NO SI8 - C 1 PNP NO S SI8 - C 1 PNP NO H1 S SI8 - DC 2 PNP NO S
PNP
NC SI8 - C 1 PNP NC S SI8 - C 1 PNP NC H1 S SI8 - DC 2 PNP NC S
Switching distance (Sn) mm 1.5 1.5 2

Continuous voltage (residual ripple ≤10%) V 6 ÷ 30

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 2000

Repeatability % of Sn ≤3

Max output current mA 200

Absorption at 24Vdc mA < 12

Voltage drop (sensor ON) V < 1.8

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP Depending on connector 67

Housing Stainless steel

Cable PVC 2m 3 x 0.14 mm 2

3 x 0.14 mm2

Connector plug H1

WIRING DIAGRAMS CONNECTION WITH H1 - H PLUG

FOR THE CONNECTORS SEE PAGE 85

BROWN
+ BROWN
+ 4
VIEW OF MALE CONNECTOR H1
BLACK BLACK 1 = Brown / +
1 3 3 = Blue / _
PNP NO
BLUE
-- NPN NO
BLUE
-- 4 = Black / output NPN-PNP / NO-NC

BROWN
+ BROWN
+ 4
BLACK BLACK VIEW OF MALE CONNECTOR H
1 = Brown / +
PNP NC
BLUE
-- NPN NC
BLUE
-- 1 3 3 = Blue / _
4 = Black / output NPN-PNP / NO
2 = Black / output NPN-PNP / NC
N.B.: On request is available cable for sensors with different length 2
3.5 - 7.5 - 5 - 10 metres.

16 WWW.VARITEL.COM
 INDUCTIVE SENSORS M8 x 1
CYLINDRICAL SHORT HOUSING S SERIES
3 WIRES D.C.
CONFORMING TO EN 50044

INDUCTIVE
VERSION-C

28 25 28 28

LED x 4 LED x 4 LED LED X 4

49 3 35 3 44
44

SI8 - DC 2 NPN NO H1 S SI8 - DC 2 NPN NO H S SI8 - DCE 3 NPN NO S SI8 - DCE 3 NPN NO H1 S
SI8 - DC 2 NPN NC H1 S SI8 - DC 2 NPN NC H S SI8 - DCE 3 NPN NC S SI8 - DCE 3 NPN NC H1 S
SI8 - DC 2 PNP NO H1 S SI8 - DC 2 PNP NO H S SI8 - DCE 3 PNP NO S SI8 - DCE 3 PNP NO H1 S
SI8 - DC 2 PNP NC H1 S SI8 - DC 2 PNP NC H S SI8 - DCE 3 PNP NC S SI8 - DCE 3 PNP NC H1 S
2 2 3 3

6 ÷ 30

< 10%

2000

≤3

200

< 12

< 1.8

Incorporated

Incorporated

- 25 ÷ + 70

Depending on connector 67 Depending on connector

Acciaio inox

3 x 0.14 mm2

H1 H H1

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D _>2D D _>D D _>D
D _>D/2 D

Side by side mounting Flush mounting Side by side mounting Flush mounting

WWW.VARITEL.COM 17
INDUCTIVE SENSORS M8 x 1
CYLINDRICAL LONG HOUSING
3 WIRES D.C.
CONFORMING TO EN 50008 - EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

EXTENDED SWITCHING DISTANCE 38
42 42
EMBEDDABLE (FLUSH MOUNTING) LED X 4
LED x 4
LED

TECHNICAL CHARACTERISTICS 50 62
57
Dimensions mm

NO SI8 - C 1 NPN NO SI8 - C 1 NPN NO H1 SI8 - C 1 NPN NO H

NPN
AMPLIFIED NC SI8 - C 1 NPN NC SI8 - C 1 NPN NC H1 SI8 - C 1 NPN NC H
3 WIRES D.C. NO SI8 - C 1 PNP NO SI8 - C 1 PNP NO H1 SI8 - C 1 PNP NO H
PNP
NC SI8 - C 1 PNP NC SI8 - C 1 PNP NC H1 SI8 - C 1 PNP NC H
Switching distance (Sn) mm 1.5 1.5 1.5

Continuous voltage (residual ripple ≤10%) V 6 ÷ 30

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 2000

Repeatability % of Sn ≤3

Max output current mA 200

Absorption at 24Vdc mA < 12

Voltage drop (sensor ON) V < 1.8

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector Depending on connector

Housing Stainless steel

Cable PVC 2m 3 x 0.14 mm 2

Connector plug H1 H

WIRING DIAGRAMS CONNECTION WITH H1 - H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

4 VIEW OF MALE CONNECTOR H1

BROWN
+ BROWN
+ 1 = Brown / +
BLACK BLACK
1 3 3 = Blue / _
4 = Black / output NPN-PNP / NO-NC
PNP NO
BLUE
-- NPN NO
BLUE
-- 4
VIEW OF MALE CONNECTOR H
1 3
1 = Brown / +
BROWN
+ BROWN
+ 3 = Blue / _
BLACK BLACK 4 = Black / output NPN-PNP / NO
2
2 = Black / output NPN-PNP / NC
PNP NC
BLUE
-- NPN NC
BLUE
--
VIEW OF MALE CONNECTOR K
1 2
2 = Brown / +
N.B.: On request is available cable for sensors with different length 1 = Blue / _
3.5 - 7.5 - 5 - 10 metres. = Black / output NPN-PNP / NO-NC

18 WWW.VARITEL.COM
 INDUCTIVE SENSORS M8 x 1
CYLINDRICAL LONG HOUSING
3 WIRES D.C.
CONFORMING TO EN 50008 - EN 50044

INDUCTIVE
VERSION-C

42 42 38 38

LED LED X 4 LED x 4 LED

50 57 62 64

SI8 - DC 2 NPN NO SI8 - DC 2 NPN NO H 1 SI8 - DC 2 NPN NO H SI8 - DC 2 NPN NO K

SI8 - DC 2 NPN NC SI8 - DC 2 NPN NC H 1 SI8 - DC 2 NPN NC H SI8 - DC 2 NPN NC K
SI8 - DC 2 PNP NO SI8 - DC 2 PNP NO H 1 SI8 - DC 2 PNP NO H SI8 - DC 2 PNP NO K
SI8 - DC 2 PNP NC SI8 - DC 2 PNP NC H 1 SI8 - DC 2 PNP NC H SI8 - DC 2 PNP NC K
2 2 2 2

6 ÷ 30

<10%

2000

≤3

200

< 12

<1.8

Incorporated

Incorporated

- 25 ÷ + 70

67 Depending on connector Depending on connector 65

Stainless steel

3 x 0.14 mm 2

H1 H1 K (type 11)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE

D ≥D/2 D

Side by side mounting Flush mounting

WWW.VARITEL.COM 19
INDUCTIVE SENSORS M12 x 1
CYLINDRICAL SHORT HOUSING S SERIES
3/4 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

EXTENDED SWITCHING DISTANCE 28 31
28
LED
EMBEDDABLE (FLUSH MOUNTING) LED LED x 4

NOT EMBEDDABLE
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
41 4 41
45
Dimensions mm

NO SI12 - C2 NPN NO S SI12 - C2 NPN NO H S SI12 - CE4 NPN NO S

NPN NC
AMPLIFIED SI12 - C2 NPN NC S SI12 - C2 NPN NC H S SI12 - CE4 NPN NC S
3 WIRES D.C. NO SI12 - C2 PNP NO S SI12 - C2 PNP NO H S SI12 - CE4 PNP NO S
PNP
NC SI12 - C2 PNP NC S SI12 - C2 PNP NC H S SI12 - CE4 PNP NC S
AMPLIFIED NPN NO+NC
4 WIRES D.C.
ANTIPHASE PNP NO+NC
Switching distance (Sn) mm 2 2 4
Continuous voltage (residual ripple ≤10%) V 10 ÷ 30
Hysteresis (%Sn) mm < 10%
Switching frequency Hz 1000
Repeatability % of Sn ≤3
Max output current mA 200
Absorption at 24Vdc mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67 Depending on connector 67
Housing Nickelled brass
Cable PVC 2m 3 x 0.25 mm2 3 x 0.25 mm2
Connector plug H

WIRING DIAGRAMS CONNECTION WITH H1 - H PLUGS

FOR THE CONNECTORS SEE PAGE 85

BROWN
+ BROWN
+ 4 VIEW OF MALE CONNECTOR H1
BLACK BLACK 1 = Brown / +
3 = Blue / _
BLUE BLUE 1 3
PNP NO -- NPN NO -- 4 = Black / output NPN-PNP / NO-NC
BROWN BROWN
+ + VIEW OF MALE CONNECTOR H
BLACK BLACK
3 WIRES
BLUE BLUE 4 1 = Brown / +
PNP NC -- NPN NC -- 3 = Blue / _
BROWN BROWN
BLACK
+ BLACK
+ 4 = Black / output NPN-PNP / NO
1 3 2 = Black / output NPN-PNP / NC
WHITE WHITE
BLUE BLUE 4 WIRES
PNP NO+NC -- NPN NO+NC -- 1 = Brown / +
2 3 = Blue / _
N.B.: On request is available cable for sensors with different length
4 = Black / output NPN-PNP / NO
3.5 - 7.5 - 5 - 10 metres. 2 = White / output NPN-PNP / NC

20 WWW.VARITEL.COM
 INDUCTIVE SENSORS M12 x 1
CYLINDRICAL SHORT HOUSING S SERIES
3/4 WIRES D.C.
CONFORMING TO EN 50044

INDUCTIVE
VERSION-C

31 28 31 28 31
LED x 4 LED LED x 4 LED LED x 4

4 45 4 41 4 45
41 45

SI12 - CE4 NPN NO H S SI12 - DC4 NPN NO S SI12 - DC4 NPN NO H S SI12 - DCE8 NPN NO S SI12 - DCE8 NPN NO HS
SI12 - CE4 NPN NC H S SI12 - DC4 NPN NC S SI12 - DC4 NPN NC H S SI12 - DCE8 NPN NC S SI12 - DCE8 NPN NC HS
SI12 - CE4 PNP NO H S SI12 - DC4 PNP NO S SI12 - DC4 PNP NO H S SI12 - DCE8 PNP NO S SI12 - DCE8 PNP NO HS
SI12 - CE4 PNP NC H S SI12 - DC4 PNP NC S SI12 - DC4 PNP NC H S SI12 - DCE8 PNP NC S SI12 - DCE8 PNP NC HS
SI12 - DC4 NPN NO+NC S SI12 - DC4 NPN NO+NC H S
SI12 - DC4 PNP NO+NC S SI12 - DC4 PNP NO+NC H S
4 4 4 8 8
10 ÷ 30
< 10%
1000 1000 600
≤3
200
< 15
< 1.8
Incorporated
Incorporated
- 25 ÷ + 70
Depending on connector 67 Depending on connector 67 Depending on connector
Nickelled brass Stainless steel
3 x 0.25 mm2 - 4 x 0.25 mm2 3 x 0.25 mm2
H H H

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D A D D A D A D A
x x

Side by side mounting Flush mounting Side by side mounting Non flush mounting
SI12-C2 A ≥ D/2 SI12-C2 X≥0 SI12-CE4 A ≥ 2D SI12-CE4 A≥D X≥0
SI12-DC4 A ≥ D/2 SI12-DC4 X>0 SI12-DCE8 A ≥ 2D SI12-DCE8 A ≥ 2D X ≥ 4mm

WWW.VARITEL.COM 21
INDUCTIVE SENSORS M12 x 1
CYLINDRICAL LONG HOUSING
3/4 WIRES D.C.
CONFORMING TO EN 50008 - EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING)
42 50
NOT EMBEDDABLE LED
LED x 4
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS 61 65
Dimensions mm

NO SI12 - C2 NPN NO SI12 - C2 NPN NO H

NPN NC
AMPLIFIED SI12 - C2 NPN NC SI12 - C2 NPN NC H
3 WIRES D.C. NO SI12 - C2 PNP NO SI12 - C2 PNP NO H
PNP
NC SI12 - C2 PNP NC SI12 - C2 PNP NC H
AMPLIFIED NPN NO+NC SI12 - C2 NPN NO + NC SI12 - C2 NPN NO + NC H
4 WIRES D.C.
ANTIPHASE PNP NO+NC SI12 - C2 PNP NO + NC SI12 - C2 PNP NO + NC H
Switching distance (Sn) mm 2 2
Continuous voltage (residual ripple ≤10%) V 10 ÷ 30
Hysteresis (%Sn) mm < 10%
Switching frequency Hz 1000
Repeatability % of Sn ≤3
Max output current mA 200
Absorption at 24Vdc mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67 Depending on connector
Housing Nickelled brass
Cable PVC 2m 3 x 0.25 mm2 - 4 x 0.25 mm2
Connector plug H

WIRING DIAGRAMS CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

BROWN
BROWN
+ + 4 VIEW OF MALE CONNECTOR H
BLACK BLACK
3 WIRES 4 WIRES
BLUE BLUE 1 3 1 = Brown / + 1 = Brown / +
PNP NO -- NPN NO -- 3 = Blue / _ 3 = Blue / _
BROWN BROWN 4 = Black / output NPN-PNP / NO 4 = Black / output NPN-PNP / NO
+ + 2 2 = BlacK / output NPN-PNP / NC 2 = White / output NPN-PNP / NC
BLACK BLACK

BLUE BLUE
PNP NC -- NPN NC -- VIEW OF MALE CONNECTOR K
BROWN BROWN
BLACK
+ BLACK
+ 3 WIRES 4 WIRES
1 1 = Blue / _ 1 = Blue / _
WHITE WHITE
2 2 = Brown / + 2 = Brown / +
BLUE BLUE 4/ = Black / output NPN-PNP / NO-NC 4/ = Black / output NPN-PNP / NO
PNP NO+NC -- NPN NO+NC -- 3
3 = White / output NPN-PNP / NC
On the 3 wires version with plug K the connector K is supplied with 3 poles.
N.B.: On request is available cable for sensors with different length On the 4 wires version with plug H the connector types 14 - 15
3.5 - 7.5 - 5 - 10 metres. must be ordered with 4 wires.

22 WWW.VARITEL.COM
 INDUCTIVE SENSORS M12 x 1
CYLINDRICAL LONG HOUSING
3/4 WIRES D.C.
CONFORMING TO EN 50008 - EN 50044
VERSION-C

INDUCTIVE
42 45 44
44 LED LED x 4
LED LED

61 4 61 4 60 4 61

SI12 - C2 NPN NO K SI12 - CE4 NPN NO SI12 - CE4 NPN NO H SI12 - CE4 NPN NO K
SI12 - C2 NPN NC K SI12 - CE4 NPN NC SI12 - CE4 NPN NC H SI12 - CE4 NPN NC K
SI12 - C2 PNP NO K SI12 - CE4 PNP NO SI12 - CE4 PNP NO H SI12 - CE4 PNP NO K
SI12 - C2 PNP NC K SI12 - CE4 PNP NC SI12 - CE4 PNP NC H SI12 - CE4 PNP NC K
SI12 - C2 NPN NO + NC K SI12 - CE4 NPN NO + NC SI12 - CE4 NPN NO + NC H SI12 - CE4 NPN NO + NC K
SI12 - C2 PNP NO + NC K SI12 - CE4 PNP NO + NC SI12 - CE4 PNP NO + NC H SI12 - CE4 PNP NO + NC K
2 4 4 4
10 ÷ 30
< 10%
1000
≤3
200
< 15
< 1.8
Incorporated
Incorporated
- 25 ÷ + 70
65 67 Depending on connector 65
Nickelled brass
3 x 0.25 mm2 - 4 x 0.25 mm2
K (type 11) H K (type 11)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 23
INDUCTIVE SENSORS M12 x 1
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50040 - EN 50044
VERSION-B

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING)
42 50 44
NOT EMBEDDABLE LED
LED x 4
LED
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS 61 65 61
Dimensions mm

AMPLIFIED NO SI12 - B2 NO SI12 - B2 NO H SI12 - B2 NO K

2 WIRES D.C. NC SI12 - B2 NC SI12 - B2 NC H SI12 - B2 NC K
Switching distance (Sn) mm 2 2 2

Continuous voltage (residual ripple ≤10%) V 10 ÷ 55

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 1000

Repeatability % of Sn ≤3

Max output current mA 100

Min. output current mA 1.5

Absorption at 24Vdc mA < 0.6

Voltage drop (sensor ON) V < 6.5

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector 65

Housing Nickelled brass

Cable PVC 2m 2 x 0.25 mm2

Connector plug H K (type 11)

WIRING DIAGRAMS (2 WIRES NON POLARIZED) CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE. 85

4 VIEW OF MALE CONNECTOR H:

BROWN
-- / + 3 / 4 = Function NO (black - blue)*
1 3 1 / 2 = Function NC (white - brown)*
BLUE (Non polarized)
NO + / -- * The wire colour are referred to the connector with cable only.
2
BROWN
-- / +
VIEW OF MALE CONNECTOR K:
BLUE
NC + / -- 1 / 2 = Function NO
1 2 1 / 2 = Function NC
(Non polarized)
N.B.: On request is available cable for sensors with different length
3.5 - 7.5 - 5 - 10 metres.

24 WWW.VARITEL.COM
 INDUCTIVE SENSORS M12 x 1
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50040 - EN 50044

INDUCTIVE
VERSION-B

42 50 LED x 4 44
LED LED

4 61 4 65 4 61

SI12 - BE4 NO SI12 - BE4 NO K SI12 - BE4 NO K

SI12 - BE4 NC SI12 - BE4 NC K SI12 - BE4 NC K
4 4 4

10 ÷ 55

< 10%

1000

≤3

100

1.5

< 0.6

< 6.5

Incorporated

Incorporated

- 25 ÷ + 70

67 Depending on connector 65

Nickelled brass

2 x 0.25 mm2

H K (type 11)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 25
INDUCTIVE SENSORS M12 x 1
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50036 - EN 50044
VERSION-A

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING)
42 LED x 4 44
NOT EMBEDDABLE LED
50
LED
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS 61 65 61
Dimensions mm

AMPLIFIED NO SI12 - A2 NO SI12 - A2 NO H SI12 - A2 NO K

2 WIRES A.C. NC SI12 - A2 NC SI12 - A2 NC H SI12 - A2 NC K
Switching distance (Sn) mm 2 2 2

Voltage 50÷ 60 Hz V 20 ÷ 250

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 12

Repeatability % of Sn ≤3

Max output current mA 300

Min. output current mA 5

Max. peak current for 20ms A 1.5

Residual current mA <1

Voltage drop V <6

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector 65

Housing Nickelled brass

Cable PVC 2m 2 x 0.25 mm2

Connector plug H K (type 11)

WIRING DIAGRAMS CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

4
BROWN VIEW OF MALE CONNECTOR H
L1
3 / 4 = Function NO (black - blue)*
1 3
1 / 2 = Function NC (white - brown)*
BLUE
NO N * The wire colour are referred to the connector with cable only.
2
BROWN
L1

BLUE
NC N
1 VIEW OF MALE CONNECTOR K
2
1 / 2 = Function NO
1 / 2 = Function NC
N.B.: On request is available cable for sensors with different length
3.5 - 7.5 - 5 - 10 metres.

26 WWW.VARITEL.COM
 INDUCTIVE SENSORS M12 x 1
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50036 - EN 50044

INDUCTIVE
VERSION-A

42 50 LED x 4
44
LED LED

4 61 4 65 4 61

SI12 - AE4 NO SI12 - AE4 NO H SI12 - AE4 NO K

SI12 - AE4 NC SI12 - AE4 NC H SI12 - AE4 NC K
4 4 4

20 ÷ 250

< 10%

12

≤3

300

1.5

<1

<6

Incorporated

- 25 ÷ + 70

67 Depending on connector 65

Nickelled brass

2 x 0.25 mm2

H K (type 11)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 27
INDUCTIVE SENSORS M18 x 1
CYLINDRICAL SHORT HOUSING S SERIES
3/4 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

28 28
EXTENDED SWITCHING DISTANCE
LED
EMBEDDABLE (FLUSH MOUNTING) LED x 4

NOT EMBEDDABLE
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
47 51
Dimensions mm

NO SI18 - C5 NPN NO S SI18 - C5 NPN NO H S

NPN NC
AMPLIFIED SI18 - C5 NPN NC S SI18 - C5 NPN NC H S
3 WIRES D.C. NO SI18 - C5 PNP NO S SI18 - C5 PNP NO H S
PNP
NC SI18 - C5 PNP NC S SI18 - C5 PNP NC H S
AMPLIFIED NPN NO+NC
4 WIRES D.C.
ANTIPHASE PNP NO+NC
Switching distance (Sn) mm 5 5
Continuous voltage (residual ripple ≤10%) V 10 ÷ 30
Hysteresis (%Sn) mm < 10%
Switching frequency Hz 1000
Repeatability % of Sn ≤3
Max output current mA 200
Absorption at 24Vdc mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67 Depending on connector
Housing Nickelled brass
Cable PVC 2m 3 x 0.35 mm2
Connector plug H

WIRING DIAGRAMS CONNECTION WITH H PLUGS

FOR THE CONNECTORS SEE PAGE 85

BROWN
+ BROWN
+ 4
BLACK BLACK

BLUE BLUE
PNP NO -- NPN NO -- 1 3

BROWN
+ BROWN
+ 2
BLACK BLACK

PNP NC
BLUE
-- NPN NC
BLUE
-- VIEW OF MALE CONNECTOR H
3 WIRES 4 WIRES
BROWN
+ BROWN
+ 1 = Brown / + 1 = Brown / +
BLACK BLACK 3 = Blue / _ 3 = Blue / _
WHITE WHITE 4 = Black / output NPN-PNP / NO 4 = Black / output NPN-PNP / NO
BLUE BLUE 2 = Black / output NPN-PNP / NC 2 = White / output NPN-PNP / NC
PNP NO+NC -- NPN NO+NC --
N.B.: On request is available cable for sensors with different length On the 4 wires version with plug H the connector types 14 - 15 must
be ordered with 4 wires.
3.5 - 7.5 - 5 - 10 metres.

28 WWW.VARITEL.COM
 INDUCTIVE SENSORS M18 x 1
CYLINDRICAL SHORT HOUSING S SERIES
3/4 WIRES D.C.
CONFORMING TO EN 50044

INDUCTIVE
VERSION-C

28 28 28 28

LED LED x 4 LED LED x 4

47 51 7,5 47 7,5 51

SI18 - DC8 NPN NO S SI18 - DC8 NPN NO H S

SI18 - DC8 NPN NC S SI18 - DC8 NPN NC H S
SI18 - DC8 PNP NO S SI18 - DC8 PNP NO H S
SI18 - DC8 PNP NC S SI18 - DC8 PNP NC H S
SI18 - DC8 NPN NO + NC S SI18 - DC8 NPN NO + NC H S SI18 - DCE16 NPN NO + NC S SI18 - DCE16 NPN NO + NC H S
SI18 - DC8 PNP NO + NC S SI18 - DC8 PNP NO + NC H S SI18 - DCE16 PNP NO + NC S SI18 - DCE16 PNP NO + NC H S
8 8 16 16
10 ÷ 30
< 10%
400 200
≤3
200
< 15
< 1.8
Incorporated
Incorporated
- 25 ÷ + 70
67 Depending on connector 67 Depending on connector
Stainless steel
3 x 0.35 mm2 - 4 x 0.25 mm2 4 x 0.25 mm2
H H

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D A D D A D A D A
x
x

Side by side mounting Flush mounting

SI18-C5 A ≥ D/2 SI18-C5 X≥0 Side by side mounting Non flush mounting
SI18-DC8 A ≥ D/2 SI18-DC8 X ≥ 1.5mm SI18-DCE16 A ≥ 2D SI18-DCE16 A ≥ 2D X ≥ 8mm

WWW.VARITEL.COM 29
INDUCTIVE SENSORS M18 x 1
CYLINDRICAL LONG HOUSING
3/4 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING) 48 41 48
NOT EMBEDDABLE LED LED x 4 LED
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
70 65 65
Dimensions mm

NO SI18 - C5 NPN NO SI18 - C5 NPN NO H SI18 - C5 NPN NO K

NPN NC
AMPLIFIED SI18 - C5 NPN NC SI18 - C5 NPN NC H SI18 - C5 NPN NC K
3 WIRES D.C. NO SI18 - C5 PNP NO SI18 - C5 PNP NO H SI18 - C5 PNP NO K
PNP
NC SI18 - C5 PNP NC SI18 - C5 PNP NC H SI18 - C5 PNP NC K
AMPLIFIED NPN NO+NC SI18 - C5 NPN NO + NC SI18 - C5 NPN NO + NC H SI18 - C5 NPN NO + NC K
4 WIRES D.C.
ANTIPHASE PNP NO+NC SI18 - C5 PNP NO + NC SI18 - C5 PNP NO + NC H SI18 - C5 PNP NO + NC K
Switching distance (Sn) mm 5 5 5
Continuous voltage (residual ripple ≤10%) V 10 ÷ 30
Hysteresis (%Sn) mm < 10%
Switching frequency Hz 1000
Repeatability % of Sn ≤3
Max output current mA 200
Absorption at 24Vdc mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67 Depending on connector 65
Housing Nickelled brass
Cable PVC 2m 3 x 0.35 mm2 - 4 x 0.25 mm2
Connector plug H K (type 11)

WIRING DIAGRAMS CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

BROWN
+ BROWN
+ 4 VIEW OF MALE CONNECTOR H
BLACK BLACK
3 WIRES 4 WIRES
BLUE BLUE 1 3 1 = Brown / + 1 = Brown / +
PNP NO -- NPN NO -- 3 = Blue / _ 3 = Blue / _
BROWN BROWN 4 = Black / output NPN-PNP / NO 4 = Black / output NPN-PNP / NO
+ + 2 2 = Black / output NPN-PNP / NC 2 = White / output NPN-PNP / NC
BLACK BLACK

BLUE BLUE
PNP NC -- NPN NC -- VIEW OF MALE CONNECTOR K
BROWN
BLACK
+ BROWN
+ 3 WIRES 4 WIRES
BLACK
1 1 = Blue / _ 1 = Blue / _
WHITE
2 2 = Brown / + 2 = Brown / +
WHITE
BLUE BLUE 4/ = Black / output NPN-PNP / NO-NC 4/ = Black / output NPN-PNP / NO
PNP NO+NC -- NPN NO+NC -- 3
3 = White / output NPN-PNP / NC
On the 3 wires version with plug K the connector K is supplied with 3 poles.
N.B.: On request is available cable for sensors with different length On the 4 wires version with plug H the connectors types 14 - 15 must
3.5 - 7.5 - 5 - 10 metres. be ordered with 4 wires.

30 WWW.VARITEL.COM
 INDUCTIVE SENSORS M18 x 1
CYLINDRICAL LONG HOUSING
3/4 WIRES D.C.
CONFORMING TO EN 50044

INDUCTIVE
VERSION-C

48 41 48
LED LED x 4 LED

7,5 70 7,5 65 7,5 65

SI18 - CE8 NPN NO SI18 - CE8 NPN NO H SI18 - CE8 NPN NO K

SI18 - CE8 NPN NC SI18 - CE8 NPN NC H SI18 - CE8 NPN NC K
SI18 - CE8 PNP NO SI18 - CE8 PNP NO H SI18 - CE8 PNP NO K
SI18 - CE8 PNP NC SI18 - CE8 PNP NC H SI18 - CE8 PNP NC K
SI18 - CE8 NPN NO + NC SI18 - CE8 NPN NO + NC H SI18 - CE8 NPN NO + NC K
SI18 - CE8 PNP NO + NC SI18 - CE8 PNP NO + NC H SI18 - CE8 PNP NO + NC K
8 8 8
10 ÷ 30
< 10%
1000
≤3
200
< 15
< 1.8
Incorporated
Incorporated
- 25 ÷ + 70
67 Depending on connector 65
Nickelled brass
3 x 0.35 mm2 - 4 x 0.25 mm2
H K (type 11)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 31
INDUCTIVE SENSORS M18 x 1
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50040 - EN 50044
VERSION-B

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING) 48 41 48
NOT EMBEDDABLE LED LED x 4 LED
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
70 65 65
Dimensions mm

AMPLIFIED NO SI18 - B5 NO SI18 - B5 NO H SI18 - B5 NO K

2 WIRES D.C. NC SI18 - B5 NC SI18 - B5 NC H SI18 - B5 NC K
Switching distance (Sn) mm 5 5 5

Continuous voltage (residual ripple ≤10%) V 10 ÷ 55

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 1000

Repeatability % of Sn ≤3

Max output current mA 100

Min. output current mA 1.5

Residual current mA < 0.6

Voltage drop (sensor ON) V < 6.5

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector 65

Housing Nickelled brass

Cable PVC 2m 2 x 0.50 mm2

Connector plug H K (type 11)

WIRING DIAGRAMS (2 WIRES NON POLARIZED) CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

4 VIEW OF MALE CONNECTOR H

BROWN
-- / + 3 / 4 = = Function NO (Black-blue)*
1 3 1 / 2 = Function NC (White-brown)*
BLUE (Non polarized)
NO + / -- * The wire colour are referred to theconnector with cable only.
2
BROWN
-- / +
VIEW OF MALE CONNECTOR K
BLUE 1 / 2 = Function NO
NC + / --
1 2 1 / 2 = Function NC
(Non polarized)
N.B.: On request is available cable for sensors with different length
3.5 - 7.5 - 5 - 10 metres.

32 WWW.VARITEL.COM
 INDUCTIVE SENSORS M18 x 1
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50040 - EN 50044

INDUCTIVE
VERSION-B

48 41 48

LED LED
LED x 4

7,5 70 7,5 65 7,5 65

SI18 - BE8 NO SI18 - BE8 NO H SI18 - BE8 NO K

SI18 - BE8 NC SI18 - BE8 NC H SI18 - BE8 NC K
8 8 8

10 ÷ 55

< 10%

1000

≤3

100

1.5

< 0.6

< 6.5

Incorporated

Incorporated

- 25 ÷ + 70

67 Depending on connector 65

Nickelled brass

2 x 0.50 mm2

H K (type 11)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 33
INDUCTIVE SENSORS M18 x 1
CYLINDRICAL LONG HOUSING
2 WIRES A.C.
CONFORMING TO EN 50036 - EN 50044
VERSION-A

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING) 48 48 48
NOT EMBEDDABLE LED LED x 4 LED
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
70 76 65
Dimensions mm

AMPLIFIED NO SI18 - A5 NO SI18 - A5 NO H SI18 - A5 NO K

2 WIRES A.C. NC SI18 - A5 NC SI18 - A5 NC H SI18 - A5 NC K
Switching distance (Sn) mm 5 5 5

voltage 50÷ 60 Hz V 20 ÷ 250

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 12

Repeatability % of Sn ≤3

Max output current mA 300

Min. output current mA 5

Max. peak current for 20ms A 1.5

Residual current mA <1

Voltage drop V <6

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector 65

Housing Nickelled brass

Cable PVC 2m 2 x 0.50 mm2

Connector plug H K (type 11)

WIRING DIAGRAMS CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

4
BROWN VIEW OF MALE CONNECTOR H
L1
1 3 3 / 4 = Function NO (Black-blue)*
BLUE
1 / 2 = Function NC (White-brown)*
NO N * The wire colour are referred to the connector with cable only.
2
BROWN
L1

BLUE
NC N VIEW OF MALE CONNECTOR K
1 2 1 / 2 = Function NO
1 / 2 = Function NC
N.B.: On request is available cable for sensors with different length
3.5 - 7.5 - 5 - 10 metres.

34 WWW.VARITEL.COM
 INDUCTIVE SENSORS M18 x 1
CYLINDRICAL LONG HOUSING
2 WIRES A.C.
CONFORMING TO EN 50036 - EN 50044

INDUCTIVE
VERSION-A

48 48 48

LED LED x 4 LED

7,5 70 7,5 76 7,5 65

SI18 - AE8 NO SI18 - AE8 NO H SI18 - AE8 NO K

SI18 - AE8 NC SI18 - AE8 NC H SI18 - AE8 NC K
8 8 8

20 ÷ 250

< 10%

12

≤3

300

1.5

<1

<6

Incorporated

- 25 ÷ + 70

67 Depending on connector 65

Nickelled brass

2 x 0.50 mm2

H K (type 11)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 35
INDUCTIVE SENSORS M30 x 1.5
CYLINDRICAL SHORT HOUSING S SERIES
3/4 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

EXTENDED SWITCHING DISTANCE 27 27

EMBEDDABLE (FLUSH MOUNTING) LED LED x 4

NOT EMBEDDABLE
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
Dimensions mm 43 51

NO SI30 - C10 NPN NO S SI30 - C10 NPN NO H S

NPN NC
AMPLIFIED SI30 - C10 NPN NC S SI30 - C10 NPN NC H S
3 WIRES D.C. NO SI30 - C10 PNP NO S SI30 - C10 PNP NO H S
PNP
NC SI30 - C10 PNP NC S SI30 - C10 PNP NC H S
AMPLIFIED NPN NO+NC
4 WIRES D.C.
ANTIPHASE PNP NO+NC
Switching distance (Sn) mm 10 10
Continuous voltage (residual ripple ≤10%) V 10 ÷ 30
Hysteresis (%Sn) mm < 10%
Switching frequency Hz 300
Repeatability % of Sn ≤3
Max output current mA 200
Absorption at 24Vdc mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67 Depending on connector
Housing Nickelled brass
Cable PVC 2m 3 x 0.35 mm2
Connector plug H

WIRING DIAGRAMS CONNECTION WITH H PLUG

FOR THE CONNECTORS SEE PAGE 85

BROWN BROWN
+ + 4
BLACK BLACK

BLUE BLUE
PNP NO -- NPN NO -- 1 3

BROWN BROWN
+ + 2
BLACK BLACK

BLUE BLUE VIEW OF MALE CONNECTOR H

PNP NC -- NPN NC --
BROWN BROWN 3 WIRES 4 WIRES
BLACK
+ BLACK
+ 1 = Brown / + 1 = Brown / +
3 = Blue / _ 3 = Blue / _
WHITE WHITE 4 = Black / output NPN-PNP / NO 4 = Black / output NPN-PNP / NO
BLUE BLUE 2 = Black / output NPN-PNP / NC 2 = White / output NPN-PNP / NC
PNP NO+NC -- NPN NO+NC --
N.B.: On request is available cable for sensors with different length On the 4 wires version with plug H the connector types 14 - 15 must be ordered
with 4 wires.
3.5 - 7.5 - 5 - 10 metres.

36 WWW.VARITEL.COM
 INDUCTIVE SENSORS M30 x 1.5
CYLINDRICAL SHORT HOUSING S SERIES
3/4 WIRES D.C.
CONFORMING TO EN 50044

INDUCTIVE
VERSION-C

27 27
27 27
LED LED x 4 LED LED x 4

43 51 15 43 15 51

SI30 - DC15 NPN NO S SI30 - DC15 NPN NO H S

SI30 - DC15 NPN NC S SI30 - DC15 NPN NC H S
SI30 - DC15 PNP NO S SI30 - DC15 PNP NO H S
SI30 - DC15 PNP NC S SI30 - DC15 PNP NC H S
SI30 - DC15 NPN NO + NC S SI30 - DC15 NPN NO + NC H S SI30 - DCE20 NPN NO + NC S SI30 - DCE20 NPN NO + NC H S
SI30 - DC15 PNP NO + NC S SI30 - DC15 PNP NO + NC H S SI30 - DCE20 PNP NO + NC S SI30 - DCE20 PNP NO + NC H S
15 15 20 20

10 ÷ 30
< 10%
300 200
≤3
200
< 15
< 1.8
Incorporated
Incorporated
- 25 ÷ + 70
67 Depending on connector 67 Depending on connector

Nickelled brass
3 x 0.35 mm2 - 4 x 0.25 mm2 4 X 0.25 mm2
H H

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D A D D A D A D A

Side by side mounting Flush mounting Side by side mounting Non flush mounting
SI30-C10 A ≥ D/2 SI30-C10 X≥0 SI30-DCE20 A ≥ 3D SI30-DCE20 A ≥ 2D X ≥ 10mm
SI30-DC15 A ≥ D SI30-DC15 X ≥ 4mm

WWW.VARITEL.COM 37
INDUCTIVE SENSORS M30 x 1.5
CYLINDRICAL LONG HOUSING
3/4 WIRES D.C.
CONFORMING TO EN 50008 - EN 50044
VERSION-C

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING) 50 LED 45 53 LED

NOT EMBEDDABLE LED x 4

(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
68 68 66
Dimensions mm

NO SI30 - C10 NPN NO SI30 - C10 NPN NO H SI30 - C10 NPN NO K

NPN NC
AMPLIFIED SI30 - C10 NPN NC SI30 - C10 NPN NC H SI30 - C10 NPN NC K
3 WIRES D.C. NO SI30 - C10 PNP NO SI30 - C10 PNP NO H SI30 - C10 PNP NO K
PNP
NC SI30 - C10 PNP NC SI30 - C10 PNP NC H SI30 - C10 PNP NC K
AMPLIFIED NPN NO+NC SI30 - C10 NPN NO + NC SI30 - C10 NPN NO + NC H SI30 - C10 NPN NO + NC K
4 WIRES D.C.
ANTIPHASE PNP NO+NC SI30 - C10 PNP NO + NC SI30 - C10 PNP NO + NC H SI30 - C10 PNP NO + NC K
Switching distance (Sn) mm 10 10 10
Continuous voltage (residual ripple ≤10%) V 10 ÷ 30
Hysteresis (%Sn) mm < 10%
Switching frequency Hz 300
Repeatability % of Sn ≤3
Max output current mA 200
Absorption at 24Vdc mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67 Depending on connector 65
Housing Nickelled brass
Cable PVC 2m 3 x 0.35 mm2 - 4 x 0.25 mm2
Connector plug H K (type 12)

WIRING DIAGRAMS CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

BROWN BROWN
+ + 4 VIEW OF MALE CONNECTOR H
BLACK BLACK
3 WIRES 4 WIRES
BLUE BLUE 1 3 1 = Brown / + 1 = Brown / +
PNP NO -- NPN NO -- 3 = Blue / _ 3 = Blue / _
BROWN BROWN 4 = Black / output NPN-PNP / NO 4 = Black / output NPN-PNP / NO
+ + 2 2 = Black / output NPN-PNP / NC 2 = White / output NPN-PNP / NC
BLACK BLACK

BLUE BLUE
PNP NC -- NPN NC -- VIEW OF MALE CONNECTOR K
BROWN BROWN
BLACK
+ BLACK
+ 3 WIRES 4 WIRES
1 1 = Blue / _ 1 = Blue / _
WHITE WHITE
2 2 = Brown / + 2 = Brown / +
BLUE BLUE 4/ = Black / output NPN-PNP / NO-NC 4/ = Black / output NPN-PNP / NO
PNP NO+NC -- NPN NO+NC -- 3
3 = White / output NPN-PNP / NC
On the 3 wires version with plug K the connector K is supplied with 3 poles.
N.B.: On request is available cable for sensors with different length On the 4 wires version with plug H the connector types 14 - 15 must
3.5 - 7.5 - 5 - 10 metres. be ordered with 4 wires.

38 WWW.VARITEL.COM
 ®

INDUCTIVE SENSORS M30 x 1.5

CYLINDRICAL LONG HOUSING
3/4 WIRES D.C.
CONFORMING TO EN 50008 - EN 50044

INDUCTIVE
VERSION-C

50 LED 45 LED x 4 53 LED

15 68 15 68 15 66

SI30 - CE15 NPN NO SI30 - CE15 NPN NO H SI30 - CE15 NPN NO K

SI30 - CE15 NPN NC SI30 - CE15 NPN NC H SI30 - CE15 NPN NC K
SI30 - CE15 PNP NO SI30 - CE15 PNP NO H SI30 - CE15 PNP NO K
SI30 - CE15 PNP NC SI30 - CE15 PNP NC H SI30 - CE15 PNP NC K
SI30 - CE15 NPN NO + NC SI30 - CE15 NPN NO + NC H SI30 - CE15 NPN NO + NC K
SI30 - CE15 PNP NO + NC SI30 - CE15 PNP NO + NC H SI30 - CE15 PNP NO + NC K
15 15 15
10 ÷ 30
< 10%
300
≤3
200
< 15
< 1.8
Incorporated
Incorporated
- 25 ÷ + 70
67 Depending on connector 65
Nickelled brass
3 x 0.35 mm2 - 4 x 0.25 mm2
H K (type 12)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 39
INDUCTIVE SENSORS M30 x 1.5
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50040 - EN 50044
VERSION -B

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING) 50 LED 45 LED x 4 53 LED

NOT EMBEDDABLE
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
68 68 66
Dimensions mm

AMPLIFIED NO SI30 - B10 NO SI30 - B10 NO H SI30 - B10 NO K

2 WIRES D.C. NC SI30 - B10 NC SI30 - B10 NC H SI30 - B10 NC K
Switching distance (Sn) mm 10 10 10

Continuous voltage (residual ripple ≤10%) V 10 ÷ 55

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 300

Repeatability % of Sn ≤3

Max output current mA 100

Min. output current mA 1.5

Residual current mA < 0.6

Voltage drop (sensor ON) V < 6.5

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector 65

Housing Nickelled brass

Cable PVC 2m 2 x 0.50 mm2

Connector plug H K (type 12)

WIRING DIAGRAMS (2 WIRES NON POLARIZED) CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

4
BROWN
VIEW OF MALE CONNECTOR H
-- / + 3 / 4 = Function NO (Black-blue)*
1 3 1 / 2 = Function NC (White-brown)*
BLUE (Non polarized)
NO + / -- * The wire colour are referred to the connector with cable only.
2
BROWN
-- / +
BLUE VIEW OF MALE CONNECTOR K
NC + / -- 1 / 2 = Function NO
1 2 1 / 2 = Function NC
(Non polarized)
N.B.: On request is available cable for sensors with different length
3.5 - 7.5 - 5 - 10 metres.

40 WWW.VARITEL.COM
 INDUCTIVE SENSORS M30 x 1.5
CYLINDRICAL LONG HOUSING
2 WIRES D.C.
CONFORMING TO EN 50040 - EN 50044

INDUCTIVE
VERSION -B

50 LED 45 LED x 4 53 LED

15 68 15 68 15 66

SI30 - BE15 NO SI30 - BE15 NO H SI30 - BE15 NO K

SI30 - BE15 NC SI30 - BE15 NC H SI30 - BE15 NC K
15 15 15

10 ÷ 55

< 10%

300

≤3

100

1.5

< 0.6

< 6.5

Incorporated

Incorporated

- 25 ÷ + 70

67 Depending on connector 65

Nickelled brass

2 x 0.50 mm2

H K (type 12)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 41
INDUCTIVE SENSORS M30 x 1.5
CYLINDRICAL LONG HOUSING
2 WIRES A.C.
CONFORMING TO EN 50036 - EN 50044
VERSION-A

STANDARD SWITCHING DISTANCE

EMBEDDABLE (FLUSH MOUNTING) 50 LED 50 LED x 4 53 LED

NOT EMBEDDABLE
(NON FLUSH MOUNTING)

TECHNICAL CHARACTERISTICS
68 78 66
Dimensions mm

AMPLIFIED NO SI30 - A10 NO SI30 - A10 NO H SI30 - A10 NO K

2 WIRES A.C. NC SI30 - A10 NC SI30 - A10 NC H SI30 - A10 NC K
Switching distance (Sn) mm 10 10 10

Alternating voltage 50÷ 60 Hz V 20 ÷ 250

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 12

Repeatability % of Sn ≤3

Max output current mA 300

Min. output current mA 5

Max. peak current for 20ms A 1.5

Residual current mA <1

Voltage drop (sensor on) V <6

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector 65

Housing Nickelled brass

Cable PVC 2m 2 x 0.50 mm2

Connector plug H K (type 12)

WIRING DIAGRAMS CONNECTION WITH H - K PLUGS

FOR THE CONNECTORS SEE PAGE 85

4
BROWN
L1 VIEW OF MALE CONNECTOR H
1 3 3 / 4 = Function NO (Black-blue)*
BLUE 1 / 2 = Function NC (White-brown)*
NO N * The wire colour are referred to the connector with cable only.
2
BROWN
L1

BLUE
NC N VIEW OF MALE CONNECTOR K
1 2 1 / 2 = Function NO
1 / 2 = Function NC
N.B.: On request is available cable for sensors with different length
3.5 - 7.5 - 5 - 10 metres.

42 WWW.VARITEL.COM
 INDUCTIVE SENSORS M30 x 1.5
CYLINDRICAL LONG HOUSING
2 WIRES A.C.
CONFORMING TO EN 50036 - EN 50044

INDUCTIVE
VERSION-A

50 LED 50 LED x 4 53 LED

15 68 15 78 15 66

SI30 - AE15 NO SI30 - AE15 NO H SI30 - AE15 NO K

SI30 - AE15 NC SI30 - AE15 NC H SI30 - AE15 NC K
15 15 15

20 ÷ 250

< 10%

12

≤3

300

1.5

<1

<6

Incorporated

- 25 ÷ + 70

67 Depending on connector 65

Nickelled brass

2 x 0.50 mm2

H K (type 12)

INSTRUCTIONS FOR CORRECT INSTALLATION

EMBEDDABLE NOT EMBEDDABLE

D ≥D/2 D D ≥2D D ≥D D ≥D

Side by side mounting Flush mounting Side by side mounting Non flush mounting

WWW.VARITEL.COM 43
RECTANGULAR INDUCTIVE SENSORS SIPA8 - SIPC8 - SIP10
3 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

EMBEDDABLE (FLUSH MOUNTING) 8x8 LED X 4

8x8
= =
Sensing
surface

5 5
LED LED X 4
M3 M3

3
3
TECHNICAL CHARACTERISTICS 10 20 1
0
10 20 10 9
40 49
Dimensions mm Sensing surface Sensing surface

NO SIPA8 - C2 NPN NO SIPA8 - C2 NPN NO H 1

NPN
AMPLIFIED NC SIPA8 - C2 NPN NC SIPA8 - C2 NPN NC H 1
3 WIRES D.C. NO SIPA8 - C2 PNP NO SIPA8 - C2 PNP NO H 1
PNP
NC SIPA8 - C2 PNP NC SIPA8 - C2 PNP NC H 1
Switching distance (Sn) mm 2 2

Continuous voltage (residual ripple ≤10%) V 6 ÷ 30

Hysteresis (%Sn) mm < 10%

Switching frequency Hz 2000

Repeatability % of Sn ≤3

Max output current mA 200

Absorption at 24Vdc mA < 12

Voltage drop (sensor ON) V < 1.8

Short circuit protection Incorporated

Led Incorporated

Temperature limits °C - 25 ÷ + 70

Degree of protection IP 67 Depending on connector

Housing Anodized aluminium

Cable PVC 2m 3 x 0.14 mm 2

Connector plug H1

WIRING DIAGRAMS CONNECTION WITH H1 PLUG

FOR THE CONNECTORS SEE PAGE 85

BROWN
+ BROWN
+
BLACK BLACK 4

PNP NO
BLUE
-- NPN NO
BLUE
--
1 3
BROWN
+ BROWN
+
BLACK BLACK

PNP NC
BLUE
-- NPN NC
BLUE
--
VIEW OF MALE CONNECTOR H1:
1 = Brown / +
N.B.: On request is available cable for sensors with different length 3 = Blue / _
3.5 - 7.5 - 5 - 10 metres. 4 = Black / output NPN-PNP / NO-NC

44 WWW.VARITEL.COM
 RECTANGULAR INDUCTIVE SENSORS SIPA8 - SIPC8 - SIP10
3 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

INDUCTIVE
8x8 8x8 LED X 4 Sensing surface Sensing surface
Sensing
16 10, 16 surface
Sensing 5
surface 10,3 10,3
= =
20
LED X 4
M3 LED M3

16
17,9÷19,4
=
17,9÷19,4

= 28 =
22,2

22,2
28
LED

20,8
=
3 3 10,5
10 20 10

4,6

4,6
10 20 10 9
40 49

9
3,3
Sensing surface Sensing surface

SIPC8 - C2 NPN NO SIPC8 - C2 NPN NO H1 SIP10 - C2 NPN NO SIP10 - C2 NPN NO H1

SIPC8 - C2 NPN NC SIPC8 - C2 NPN NC H1 SIP10 - C2 NPN NC SIP10 - C2 NPN NC H1
SIPC8 - C2 PNP NO SIPC8- C2 PNP NO H1 SIP10 - C2 PNP NO SIP10 - C2 PNP NO H1
SIPC8 - C2 PNP NC SIPC8 - C2 PNP NC H1 SIP10 - C2 PNP NC SIP10 - C2 PNP NC H1
2 2 2 2

6 ÷ 30 6 ÷ 30

<10% < 10%

2000 1000

≤3 ≤3

200 200

<12 < 12

<1.8 < 1.8

Incorporated Incorporated

Incorporated Incorporated

- 25 ÷ + 70 - 25 ÷ + 70

67 Depending on connector 67 Depending on connector

Anodized aluminium Plastic

3 x 0.14 mm 2
3 x 0.14 mm 2

H1 H1

INSTRUCTIONS FOR CORRECT INSTALLATION

TYPE SIPA8 - SIPC8 TYPE SIP10

X X

X≥0 X ≥ 10mm

WWW.VARITEL.COM 45
RECTANGULAR INDUCTIVE SENSORS SIP12 - SIP17 - SIP25
3/4 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

EMBEDDABLE (FLUSH MOUNTING)

Sensing surface 26 Sensing surface
NOT EMBEDDABLE 26
18 12 LED 18 12
(NON FLUSH MOUNTING) Ø 3,8 = = Ø 3,8 = =

6
6

10
10

18
=

=
16

40
40

32
32
16

=
M3
=

22
TECHNICAL CHARACTERISTICS

14
14

Dimensions mm Ø 3,2 LED X 4 Ø 3,2

NO SIP12 - C2 NPN NO H1 SIP12 - CE4 NPN NO H1

NPN NC
AMPLIFIED SIP12 - C2 NPN NC H1 SIP12 - CE4 NPN NC H1
3 WIRES D.C. NO SIP12 - C2 PNP NO H1 SIP12 - CE4 PNP NO H1
PNP
NC SIP12 - C2 PNP NC H1 SIP12 - CE4 PNP NC H1
AMP. 4 WIRES D.C. NPN NO+NC SIP12 - C2 NPN NO + NC SIP12- CE4 NPN NO + NC
ANTIPHASE PNP NO+NC SIP12 - C2 PNP NO + NC SIP12- CE4 PNP NO + NC
AMPLIFIED NO
2 WIRES A.C. NC
Switching distance (Sn) mm 2 4 2 4
Continuous voltage (residual ripple ≤10%) V 10 ÷ 30
Alternating voltage 50÷60 Hz V
Hysteresis (%Sn) mm <10%
Switching frequency Hz 1000
Repeatability % of Sn ≤3
Max output current mA 200
Min output current mA
Max peak current for 20 ms A
Absorption at 24Vdc mA <15
Residual current mA
Voltage drop (sensor ON) V <1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67
Housing Plastic
Cable PVC 2m 4 x 0.25 mm2
Connector plug H1

WIRING DIAGRAMS CONNECTION WITH H1 PLUG

FOR THE CONNECTORS SEE PAGE 85

BROWN BROWN BROWN

+ + L1
BLACK BLACK
BLUE -- BLUE BLUE 4
PNP NO NPN NO -- NO N
BROWN + BROWN
+
BLACK BLACK
BROWN
1 3
BLUE BLUE L1
--
PNP NC NPN NC --
BLUE
BROWN
BLACK
+ BROWN
BLACK
+ NC N
WHITE WHITE
BLUE BLUE VIEW OF MALE CONNECTOR H1:
PNP NO+NC -- NPN NO+NC -- 1 = Brown / +
3 = Blue / _
N.B.: On request is available cable for sensors with different length 3.5 - 7.5 - 5 - 10 metres. 4 = Black / output NPN-PNP / NO-NC

46 WWW.VARITEL.COM
 RECTANGULAR INDUCTIVE SENSORS SIP12 - SIP17 - SIP25
2 WIRES A.C. 3/4 WIRES D.C.
CONFORMING TO EN 50044 CONFORMING TO EN 50044
VERSION-A VERSION-C

INDUCTIVE
Sensing surface Sensing
26 surface 25 10

10
Sensing
17 x 17

17
18 12 LED surface = =
= = = =
Ø 3,8

10
17
6
10

25
28

10,5 Ø 3,2
=

50
25
40

= =
32

28
LED
16

10,5 Ø 3,2 Ø 4,2 15

M3
=

= = = =
3
14

8
LED

9 3
Ø 3,2 LED x 4 LED

SIP17 - CE5 NPN NO H1 SIP25 - C5 NPN NO H1

SIP17 - CE5 NPN NC H1 SIP25 - C5 NPN NC H1
SIP17 - CE5 PNP NO H1 SIP25 - C5 PNP NO H1
SIP17 - CE5 PNP NC H1 SIP25 - C5 PNP NC H1
SIP17 - CE5 NPN NO + NC SIP25 - C5 NPN NO + NC
SIP17 - CE5 PNP NO + NC SIP25 - C5 PNP NO + NC
SIP12 - A2 NO SIP12 - AE4 NO
SIP12 - A2 NC SIP12 - AE4 NC
2 4 5 5 5 5
10 ÷ 30 10 ÷ 30
20 ÷ 250
<10% <10% <10%
12 1000 1000
≤3 ≤3 ≤3
300 200 200
5
1.5
<15 <15
<1
<6 <1.8 <1.8
Incorporated Incorporated
Incorporated Incorporated Incorporated
- 25 ÷ + 70 - 25 ÷ + 70 - 25 ÷ + 70
67 67 Depending on connector 67 Depending on connector
Plastic Plastic Nickelled brass
2 x 0.25 mm2 4 x 0.25 mm2 4 x 0.25 mm2
H1 H1

INSTRUCTIONS FOR CORRECT INSTALLATION

TYPE SIP12 TYPE SIP17 TYPE SIP25

X Y Y X

Y Y
X

X ≥ 6 mm = Possible Y≥0 X ≥ 20 mm Y ≥ 6 mm X ≥ 5 mm

X ≥ 12 mm = Not possible Y ≥ 6 mm

WWW.VARITEL.COM 47
RECTANGULAR INDUCTIVE SENSORS SIP40
4 WIRES D.C.
CONFORMING TO EN 50025 - EN 50044
VERSION-C

EMBEDDABLE (FLUSH MOUNTING)

40 60 44,5
NOT EMBEDDABLE
(NON FLUSH MOUNTING)

NO
1/2" Gas
= =
40

40
30

NC
TECHNICAL CHARACTERISTICS LED 5,3
Dimensions mm Frontal view Version with terminal block - top view

AMPLIFIED NPN NO+NC SIP40 - C15 NPN NO + NC SIP40 - CE20 NPN NO + NC SIP40 - C15 NPN NO + NC K SIP40 - CE20 NPN NO + NC K
4 WIRES D.C.
ANTIPHASE PNP NO+NC SIP40 - C15 PNP NO + NC SIP40 - CE20 PNP NO + NC SIP40 - C15 PNP NO + NC K SIP40 - CE20 PNP NO + NC K
AMPLIFIED 2 WIRES D.C. PROGR. NO/NC
AMPLIFIED 2 WIRES A.C. PROGR. NO/NC

Switching distance Sn mm 15 20 15 20
Continuous voltage (residual ripple ≤10%) V 10 ÷ 55
Alternating voltage 50÷60 Hz V
Hysteresis (%Sn) mm < 10%
Switching frequency Hz 300
Repeatability % of Sn ≤3
Max output current mA 200
Min output current mA
Max peak current for 20 mS A
Absorption at 24Vdc mA < 10
Residual current mA
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 65 (Cable version IP67)
Housing Red plastic
Type of connection Terminal block
Connector plug K (type 12)

TYPES OF CONNECTIONS WITH TERMINAL BLOCK OR CONNECTOR K (type 12 - page 85) ADJUSTABLE SENSITIVITY

4 2 2 + 4 2 2 + 1
3 3 5 2
Vers. C Vers. C
PNP PNP
NO+NC 3 1 1 -- NO+NC 3 1 1 -- 4 3
K K

NC 2 2 +/--
Vers. B
NO / NC
NO 1 1 -- /+ 1 2
K

NOTE: In the SIP 40 sensor the oscillator is contained in a

NC 2 2 L1 3 module which clips into the body whose surface can then
Vers. A be sensitive on five different positions. The surface chosen
NO / NC View of male can be identified by applying the circular adhesive label.
NO 1 1 N
K connector K

48 WWW.VARITEL.COM
 RECTANGULAR INDUCTIVE SENSORS SIP 40
2 WIRES D.C. 2 WIRES A.C.
CONFORMING TO EN 50044 CONFORMING TO EN 50037 EN 50044
VERSION-B VERSION-A

INDUCTIVE
44,5 60 9 27
=

Ø11
40

30

B
=

50
mPm
5,3 LED 113 30

Version with connector K - top view Version with cable exit - side view

SIP40-B15 NO/NC SIP40-BE20 NO/NC SIP40-B15 NO/NC K SIP40-BE20 NO/NC K

SIP40-A15 NO/NC SIP40-AE20 NO/NC SIP40-A15 NO/NC K SIP40-AE20 NO/NC K
15 20 15 20 15 20 15 20
10 ÷ 55
20 ÷ 250
< 10% < 10%
300 12
≤3 ≤3
100 300
1.5 5
1.5

< 0.6 <1

< 6.5 <6
Incorporated
Incorporated Incorporated
- 25 ÷ + 70 - 25 ÷ + 70
65 (Cable version IP67) 65 (Cable version IP67)
Red plastic Blue plastic
Terminal block Terminal block
K (type 12) K (type 12)

INSTRUCTIONS FOR CORRECT INSTALLATION

2
4

2
4

2
1

4
3

1
3

1
3

3
2
4

1
3

C D
2
4

1
3

B
A b b
D

A
Dimensions mm AB b C D
SIP 40 ≥30 ≥6 ≥0 ≥0 ≥0
• The installation example makes
reference to the areas marked red. SIP 40 ≥50 ≥40 ≥15 ≥10 ≥15

WWW.VARITEL.COM 49
RECTANGULAR INDUCTIVE SENSORS SIQ 80
4 WIRES D.C.
CONFORMING TO EN 50044
VERSION-C

NOT EMBEDDABLE VERSION WITH CONNECTOR K

(NON FLUSH MOUNTING) LED

80
65

50
10
mPm
Ø5
TECHNICAL CHARACTERISTICS 65 120

Dimensions mm 80

AMPLIFIED NPN NO+NC SIQ 80 - CE50 NPN NO + NC SIQ 80 - CE50 NPN NO + NC K

4 WIRES D.C.
ANTIPHASE PNP NO+NC SIQ 80 - CE50 PNP NO + NC SIQ 80 - CE50 PNP NO + NC K
AMPLIFIED NO
2 WIRES D.C. NC

AMPLIFIED NO
2 WIRES A.C. NC

Switching distance Sn mm 10 ÷ 60 (sensitivity adjustable)

Continuous voltage (residual ripple ≤10%) V 10 ÷ 55
Alternating voltage 50÷60 Hz V
Hysteresis (%Sn) mm <10% (Sn = 50 mm)
Switching frequency Hz 50
Repeatability % of Sn ≤3
Max output current mA 200
Min output current mA
Max peak current for 20 mS A
Absorption at 24Vdc mA <10
Residual current mA
Voltage drop (sensor ON) V <1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C - 25 ÷ + 70
Degree of protection IP 67 65
Housing Red plastic
Cable PVC 2m 4 x 0.25 mm2
Connector plug K (type 12)

WIRING DIAGRAMS CONNECTION WITH K PLUG SENSITIVITY ADJUSTMENT

FOR THE CONNECTORS SEE PAGE 85

BROWN BROWN VIEW OF MALE CONNECTOR K TRIMMER

+ +
BLACK BLACK Version-C Version-A-B
WHITE WHITE
PNP NO+NC BLUE NPN NO+NC BLUE
-- -- -- +
1 2 1 2
BROWN BROWN
-- /+ -- /+ NO NC
3
Selector This sensor is supplied with a trimmer for the sensitivity
BLUE BLUE
NO +/-- NC +/-- adjustment. The sensitivity increases when the trimmer is
Contact numeration rotated in the clockwise direction and decreases in the anti-
BROWN BROWN
L1 L1 Version 1 2 3 clockwise direction. Avoid using for a capacity greater than
60 mm referred to a square piece of (FE 37) steel of 1 mm
B ✚
❙

thickness the side of which is equal to 100 mm. When set-

BLUE BLUE
NO N NC N C (NO or NC) ✚ NC/NO ting the sensor keep in consideration all other metallic
❙

objects nearby, in fact setting is suggested to be made when

C (Antiphase) ✚ NC NO
❙

N.B.: On request is available cable for sensors with the sensor is installed in the normal working conditions.
A L1 N The sensor is supplied already preset to 50 mm sensitivity.
different length 3.5 - 7.5 - 5 - 10 metres.

50 WWW.VARITEL.COM
 RECTANGULAR INDUCTIVE SENSORS SIQ 80
2 WIRES D.C. 2 WIRES A.C.
CONFORMING TO EN 50044 CONFORMING TO EN 50044
VERSION-B VERSION-A

INDUCTIVE
VERSION WITH CABLE EXIT (IP 67)
LED

Ø11
80
65

50

Ø11
10
Ø5

65 105
80

SIQ 80 - BE50 NO PROGRAMMABLE

SIQ 80 - BE50 NC SIQ 80 - BE50 NO/NC K
SIQ 80 - AE50 NO PROGRAMMABLE
SIQ 80 - AE50 NC SIQ 80 - AE50 NO/NC K
10 ÷ 60 (sensitivity adjustable) 10 ÷ 60 (sensitivity adjustable)
10 ÷ 55
20 ÷ 250
< 10% (Sn = 50 mm) < 10% (Sn = 50 mm)
50 12
≤3 ≤3
100 300
1.5 5
1.5

< 0.6 <1

< 6.5 <6
Incorporated
Incorporated Incorporated
- 25 ÷ + 70 - 25 ÷ + 70
67 65 67 65
Red plastic Blue plastic
2 x 0.50 mm2 2 x 0.50 mm2
K (type 12) K (type 12)

INSTRUCTIONS FOR CORRECT INSTALLATION

C
B

C
A

A
N.B.: A-B-C ratings are referred to Sn = 35 mm.
Dimensions mm A B C
To adjust less or more sensitivity they either must
SIQ 80 ≥450 ≥45 ≥70 be decreased or increased.

WWW.VARITEL.COM 51
INDUCTIVE RING SENSORS
GENERAL CHARACTERISTICS
In ring sensors, sensing is made within the ring
itself. The sensor is activated when a metallic
object is introduced within it.
They are particularly suitable for applications
where detection of small metal objects such as
screws, nuts, washers etc... is requested and
also for break detection of continuos metal
wires that pass through it. The sensor’s housing
is made of plastic and the electrical attach-
ments are available by means of a cable or M8
and M12 connectors depending on the
models.
They are supplied with fixed timing impulse
(100mS) insertable by means of an ON/OFF
switch, that makes them ideal for detection of
fast moving small metal objects.
They are available with internal diameter of 5-
12-15-22-25-30-44-63-100 mm and supplied
with NPN or PNP output, sensibility regulation,
insertion/disinsertion of impulse retention time
and LED state of condition.
All ring sensors have antivalent output
(NO+NC) accept for the types with H1 connec-
tors.

SELECTION OF RING SENSOR

Selection should be made based on the minimum hole diameter required.
In this way the sensitivity adjustment can be made within normal parameters
MINIMUM DISTANCE BETWEEN SENSORS
and need not be pushed to the maximum risking the proper functioning of the Type SIA05 SIA12 SIA15 SIA22 SIA30 SIA44 SIA63 SIA100
unit.
A (Fig. 1) mm 25 30 30 60 60 300 300 600

B (Fig. 2) mm 10 10 10 20 20 250 250 650

USE WITH A DELAYED AMPLIFIERS
All types of ring sensor can work in combination with a delayed amplifier of
the programmable ALTP series which ensures the sensing of small objects in Fig. 1
rapid movement. S A

≥S ≥S ≥S
SENSITIVITY ADJUSTMENT
After having followed the instructions regarding to the choice of the most suit-
able unit it is recommended that the sensitivity adjustment be carried out
when the sensor is installed in the final position taking into account how much
metal mass is close by which could alter its functioning. The sensitivity increas-
es turning the trimmer clockwise and reduces by turning it anti-clockwise.

EFFECTS OF METAL IN THE CLOSE VICINITY

If a moving metal part is close to the sensing area the functioning can be dis-
Fig. 2
turbed. B
In order to avoid this, install the units some distance from metallic objects.
Ensure that this does not interfere with the functioning.

USE OF SENSOR
A distance equal to the width of the sensor should be left between each object
that passes through the sensor. If more than one sensor is to be installed in
close vicinity, the minimum distance indicated between sensors should be
observed.

52 WWW.VARITEL.COM
INDUCTIVE RING SENSORS
4 WIRED D.C. ON/OFF SWITCH WITH DELAY
CONFORMING TO EN 50025 - EN 50044 ON DE-ENERGIZATION 100mS.
VERSION-C ADJUSTABLE SENSITIVITY ON ALL MODELS

INDUCTIVE
EMBEDDABLE (FLUSH MOUNTING) CABLE VIEW WITH H PLUG
SENS. ADJ. LED SENS. ADJ. LED

22
VIEW B VIEW B1

59,9 H PLUG

Ø 25

80
ON / OFF ON / OFF

42,5
DELAY DELAY

Ø5,5

TECHNICAL CHARACTERISTICS VIEW B

VIEW B1

7,5
13
Dimensions mm 46

MODELS NPN NO+NC SIA25-C NPN NO+NC R

WITH CABLE PNP NO+NC SIA25-C PNP NO+NC R
MODELS NPN NO+NC SIA25-C NPN NO+NC H R
WITH H PLUG PNP NO+NC SIA25-C PNP NO+NC H R
Hole diameter Ø mm 25
Continuos voltage (residual ripple ≤ 10%) V 10 ÷ 30
Hysteresis mm In relation to Sn
Switching frequency Hz See table
Delay on de-energization ms 100
Repeatability mm < 0.3
Max output current mA 200
Absorption at 24 Vdc (sensor ON) mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C -20 ÷ +60
Degree of protection IP 65
Housing Plastic
PVC cable 2m 4 x 0.25 mm2
Plug type H

TYPE SIA25-C FLUSH MOUNTING WIRING DIAGRAMS MIN. DIMENSIONS OF THE OBJECT
TO DETECT Fe37
STANDARD MODEL - 4 WIRE CABLE
This inductive ring sensor has been created to
solve shielding problems caused by other metal-
BROWN + Model SIA25
BLACK
lic elements. Length mm 7
WHITE
N.B.: On request Diameter mm 4
It is well shielded against multipal interference NPN NO+NC BLUE
-- is available cable
created by other sensors installed close to each for sensors with
BROWN + different length SWITCHING FREQUENCY
other. BLACK 3.5 - 7.5 - 5 - 10
For applications where these sensors have to be WHITE metres.
BLUE The switching frequency of inductive ring sensors
installed very close to each other lets say at less PNP NO+NC --
depends on delayed impulse time (when inserted)
than 3 cm it will be necessary to order them with CONNECTION WITH H PLUG according to the formula:
two different frequencies that we can call A and FOR THE CONNECTORS SEE PAGE 85
1
4 Switching frequency (Hz) =
B. When installing these sensors types A and B VIEW OF MALE CONNECTOR
1 = Brown / + (T impulse + 10) mS
must be placed in alternating positions.
1 3 3 = Blue / --
4 = Black / output NPN-PNP / NO Vice versa, the switching frequency will be between
2 = White / output NPN-PNP / NC 600÷800 Hz.
2

WWW.VARITEL.COM 53
INDUCTIVE RING SENSORS
4 WIRED D.C.
CONFORMING TO EN 50025 - EN 50044
VERSION-C

NOT EMBEDDABLE Ø D = 5-12-15-22-30

(NON FLUSH MOUNTING)

41 VIEW A VIEW A1

ØD

LED

70,5
A SENS. ADJ. ON OFF
A1

40
45
ON / OFF
DELAY

Ø 4,3
20
CABLE
TECHNICAL CHARACTERISTICS 30 12
Dimensions mm

MODELS NPN NO+NC SIA05-CE NPN NO+NC R SIA12-CE NPN NO+NC R SIA15-CE NPN NO+NC R SIA22-CE NPN NO+NC R
WITH CABLE PNP NO+NC SIA05-CE PNP NO+NC R SIA12-CE PNP NO+NC R SIA15-CE PNP NO+NC R SIA22-CE PNP NO+NC R
MODELS NPN NO+NC SIA05-CE NPN NO+NC H R SIA12-CE NPN NO+NC H R SIA15-CE NPN NO+NC H R SIA22-CE NPN NO+NC H R
WITH H PLUG PNP NO+NC SIA05-CE PNP NO+NC H R SIA12-CE PNP NO+NC H R SIA15-CE PNP NO+NC H R SIA22-CE PNP NO+NC H R
Hole diameter Ø mm 5 12 15 22
Continuos voltage (residual ripple ≤ 10%) V 10 ÷ 30
Hysteresis mm In relation to Sn
Switching frequency Hz See table
Delay on de-energization ms 100
Repeatability mm < 0.3
Max output current mA 200
Absorption at 24 Vdc (sensor ON) mA < 15
Voltage drop (sensor ON) V < 1.8
Short circuit protection Incorporated
Led Incorporated
Temperature limits °C -20 ÷ +60
Degree of protection IP 65
Housing Plastic
PVC cable 2m 4 x 0.25 mm2
Plug type H

WIRING DIAGRAMS MODELS WITH H1 PLUG (M8)

VIEW A
STANDARD MODEL - 4 WIRE CABLE CONNECTION WITH H1-H PLUGS
LED
FOR THE CONNECTORS SEE PAGE 85
SENS. ADJ. ON/OFF
BROWN + 4 DELAY
BLACK VIEW OF MALE CONNECTOR H
WHITE 1 = Brown / +
1 3 LED
3 = Blue / -- ON/OFF
NPN NO+NC BLUE
-- 4 = Black / output NPN-PNP / NO SENS. ADJ.
2 = White / output NPN-PNP / NC DELAY
2
BROWN +
BLACK 4 VIEW OF MALE CONNECTOR H1
WHITE 1 = Brown / + 6 VIEW A
PNP NO+NC BLUE
-- 1 3
3 = Blue / --
4 = Black / output NPN-PNP / NO-NC On request is available the H1 plug for SIA05-12-15-22
N.B.: On request is available cable for sensors with models. This versions can be supplied with NO or NC
different length 3.5 - 7.5 - 5 - 10 metres. output only.

54 WWW.VARITEL.COM
 ®

INDUCTIVE RING SENSORS

ON/OFF SWITCH WITH DELAY ON DE-ENERGIZATION 100mS.
ADJUSTABLE SENSITIVITY ON ALL MODELS
MODELS WITH H PLUG FOR CONNECTOR

INDUCTIVE
Ø D1 = 44-63 Ø D2 = 100

H PLUG VIEW ON / OFF DELAY ON / OFF DELAY H PLUG VIEW

MODELS SIA05-12-15-22-30 MODELS SIA44-63-100
CABLE CABLE
LED LED ON / OFF DELAY
SENS. ADJ. SENS. ADJ.
VIEW B
LED SENS.

20

29
ON / OFF VIEW B VIEW B1 LED
DELAY ADJ.
SENS. ADJ. ØD1 85 ØD2 140 VIEW B / B1

105

165
LED ON / OFF ON / OFF
ON / OFF
SENS. DELAY DELAY
55

80
DELAY
ADJ. ON / OFF
DELAY
Ø5,5 Ø6,4
13 VIEW B

15
7,5

VIEW B VIEW B1 13 VIEW B/B1

60 100

SIA30-CE NPN NO+NC R SIA44-CE NPN NO+NC R SIA63-CE NPN NO+NC R SIA100-CE NPN NO+NC R
SIA30-CE PNP NO+NC R SIA44-CE PNP NO+NC R SIA63-CE PNP NO+NC R SIA100-CE PNP NO+NC R
SIA30-CE NPN NO+NC H R SIA44-CE NPN NO+NC H R SIA63-CE NPN NO+NC H R SIA100-CE NPN NO+NC H R
SIA30-CE PNP NO+NC H R SIA44-CE PNP NO+NC H R SIA63-CE PNP NO+NC H R SIA100-CE PNP NO+NC H R
30 44 63 100
10 ÷ 30
In relation to Sn
See table
100
< 0.3
200
< 15
< 1.8
Incorporated
Incorporated
-20 ÷ +60
IP 65
Plastic
4 x 0.25 mm2
H

MIN. DIMENSION OF THE OBJECT TO DETECT Fe37 SWITCHING FREQUENCY

The switching frequency of inductive ring sensors depends on delayed impul-

se time (when inserted) according to the formula:

Models SIA05 SIA12 SIA15 SIA22 SIA30 SIA44 SIA63 SIA100

1
Switching frequency (Hz) =
Length mm 1 2 2 6 7 9 12 20 (T impulse + 10) mS

Diameter mm 0.7 1.2 1.2 3 4 5 6 12 Vice versa, switching frequency will be as per chart:

Models SIA05 SIA12 SIA15 SIA22 SIA30 SIA44 SIA63 SIA100

Sw. Frequence Hz 600÷1500 600÷1000 600÷1000 600÷1000 600÷800 250÷600 100÷200 100

WWW.VARITEL.COM 55