Contactors

MINI CONTACTORS
K03C, K07C, K07CG (DC), K07CF, K03M, K07M, K07MG (DC), K07MF, K07CX,
K0CGX (DC), K07MX, K07MGX (DC)
• Contactors are used for switching electric motors and other resistive,
inductive and capacitive loads
• A wide variety of snap-on auxiliary switch blocks and accessories
• Uniform marking of terminals in accordance
with the EN 50005 and EN 50011 European standards
• Quick assembly to a 35 mm wide mounting rail in
accordance with EN 60715 or fixing with two screws
• Open and funnel-shaped connection terminals - fast and simple
connection
• High contact reliability at low voltages
• Possibility of individual marking on a special plate - easy
identification of a contactor in the circuit
• Two contactor widths: 35 and 45 mm
• Optional operating position
• AC or real DC drive with low consumption
• Possibility of direct connection of the BR6 bimetal relay for protection
against overload and in case of phase failure
• Version with all four main contacts (Sp4)
• Degree of protection IP20
• High electrical and mechanical endurance, and high switching
capacity
• K07CF and K07MF are contactors for fast-on connection
• K07CX, K07CGX, K07MX and K07MGX are contactors with
soldering pins
• Technical data for K07MF and K07MX are identical to K07M
• Technical data for K07MGX are identical to K07MG
• Technical data for K07CX are identical to K07C
• Technical data for K07CGX are identical to K07CG

TECHNICAL DATA MOTOR CONTACTORS

Type K03M K07M K07MG
Standards IEC/EN 60947-5-1, IEC/EN 60947-4-1, UL 508
Approvals (K07CX, K07CGX, K07MX, K07MGX are without approvals) UL, CSA, GOST
Climatic class constant damp heat (IEC 60068-2-78)
cyclic damp heat (IEC 60068-2-30)
Ambient temperature open -20 … +60
°C
GENERAL

closed -20 … +45

Storage temperature °C -30 … +80

Contact reliability 17 V; ≥ 50 mA
Mechanical endurance op. c. 107
Power dissipation per pole W 1.2
Max. mechanical operating frequency with no load op. c./h 3000
Max. electrical operating frequency
op. c./h 600/600/1200/1200
AC-1/AC-3/AC-15/DC-13

Weight kg 0.16 0.18 0.22

Rated insulation voltage Ui V 690

Thermal current Ith A 20
Rated frequency f Hz 50/60
Rated power 230 V 7.5
400 V 13
MAIN CIRCUIT

Pe kW
AC-1 500 V 17.5
690 V 22
Rated operational current up to 50°C open 20
Ie A
AC-1 up to 60°C open 16
Rated motor power single-phase 230 V 0.75 1.1 1.1
230 V 1.5 3 3
AC-3 400 V Pe kW 2.2 5.5 5.5
three-phase
500 V 3 5.5 5.5
690 V 4 5.5 5.5

2
 Contactors

MINI CONTACTORS
K03C, K07C, K07CG (DC), K07CF, K03M, K07M, K07MG (DC), K07MF, K07CX,
K0CGX (DC), K07MX, K07MGX (DC)
TECHNICAL DATA MOTOR CONTACTORS
Type K03M K07M K07MG
Rated operational motor current single-phase 230 V 8 10 10
230 V 6.3 11.5 11.5
400 V Ie A 5 11.3 11.3
AC-3
three-phase 500 V 5.3 9 9
690 V 4.9 6.5 6.5
Rated motor power acc. to UL 115 V 1/
3 ½ ½
single-phase
230 V ¾ 1½ 1½
MAIN CIRCUIT

230 V Pe HP 2 3 3
three-phase 460 V 3 5 5
575 V 5 7 ½ 7 ½
6
op. c. 0.2 x 10 / diagram 2
Electrical endurance of contacts AC-1 / AC-3
Max. back-up fuse for short-circuit protection gL
Iv A 25
Coordination type 2
rigid 2
0.75 … 2.5
Terminal capacity S mm
flexible 0.5 … 2.5
Screw M3.5
Screw head PZ2
Tightening torque Nm 1.2
Rated insulation voltage Ui V 690
Thermal current Ith A 20
Rated operational current 230 V 6
400 V 4
Ie A
AC-15 500 V 2
690 V 1
AUXILIARY
CIRCUIT

Rated operational current 24 V 4

Ie A
DC-13 110 V 0.25
Max. back-up fuse for short-circuit protection gL
Iv A 20
Coordination type 2
rigid 2
0.75 … 2.5
Terminal capacity S mm
flexible 0.5 … 2.5
Screw M3,5
Screw head PZ2
Tightening torque Nm 1.2
VA 39 −
switch-on
W 34 3
Coil consumption Pc
VA 8.1 −
operation
W 4 3
MAGNETIC SYSTEM

NO 10 - 15 10 - 10 25 - 30
make
NC 10 - 15 10 - 15 8 - 10
ms
Make / Break delay NO 6 - 15 5 - 10 7 - 10
break
NC 6 - 15 6 - 15 10 - 25
Range of control voltage Uc % 85 … 110
Control voltages Uc V 6 - 415 6 - 690 6 - 250
rigid 2
0.75 … 2.5
Terminal capacity S mm
flexible 0.5 … 2.5
Screw M3.5
Screw head PZ2
Tightening torque Nm 1.2

3
 Contactors

MINI CONTACTORS
K03C, K07C, K07CG (DC), K07CF, K03M, K07M, K07MG (DC), K07MF, K07CX,
K0CGX (DC), K07MX, K07MGX (DC)
TECHNICAL DATA CONTACTOR RELAYS
Type K03C K07C K07CG
Standards IEC/EN 60947-5-1, UL 508
Approvals UL, CSA, GOST
Climatic class constant damp heat acc. to IEC 60068-2-78
cyclic damp heat acc. to IEC 60068-2-30
GENERAL

Ambient temperature open -20 … +60

°C
closed -20 … +45
Storage temperature °C -30 … +80
7
Mechanical endurance op. c. 10
Max. mechanical operating frequency with no load op. c./h 3000
Max. electrical operating frequency AC-15/DC-13 op .c /h 1200/1200
Weight kg 0.16 0.18 0.22
Rated insulation voltage Ui V 690
Thermal current Ith A 20
Rated operational current 230 V 6
MAIN CIRCUT

400 V 4
Ie A
AC-15 500 V 2
690 V 1
Rated operational current 24 V 4
Ie A
DC-13 110 V 0.25
Electrical endurance AC-15 op. c. diagram 1
Max. back-up fuse for short-circuit protection gL
Iv A 20
Coordination type 2
VA 39 −
switch-on
W 34 3
Coil consumption Pc
VA 8.1 −
operation
MAIN CIRCUIT

W 4 3
Range of control voltage Uc % 85 … 110
Control voltages Uc V 6 - 415 6 - 690 6 - 250
rigid 0.75 … 2.5
Terminal capacity S mm2
flexible 0.5 … 2.5
Screw M3.5
Screw head PZ2
Tightening torque Nm 1.2

Standard control voltages and designations (AC)

V 24 42 48 110/125 220/240 380/415 440 500
50/60 Hz B7 D7 E7 F7 M7 Q7 R7 S7

Standard control voltages and designations (DC)

V 12 24 48 60 72 110 125 220
SD BD ED ND SD FD GD MD

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 Contactors

MINI CONTACTORS
K03C, K07C, K07CG (DC), K07CF, K03M, K07M, K07MG (DC), K07MF, K07CX,
K0CGX (DC), K07MX, K07MGX (DC)
ELECTRICAL ENDURANCE

Diagram 1 Diagram 2
Electrical endurance of contactor relays and
Electrical endurance (x106 op. c.)

Electrical endurance of main contacts

auxiliary contacts of motor contactors of motor contactors

Electrical endurance (x106 op. c.)

Utilization category: AC-15 Utilization category: AC-3

Breaking current Ie (A) at 230 V Rated motor power (kW) at 400 V, 50 Hz

Operation frequency: 1200 op. c./h Operation frequency: 600 op. c./h

CONTACT ARRANGEMENTS

CONTACTOR RELAYS MOTOR CONTACTORS

Type Arrangement of contacts and terminal Arrangement of contacts and terminal
Type
designation designation
K03C -22 K03M -01
K07C -22 K07M -01
K07CG -22 K07MG -01
K07CF -22 K07MF -01
K07CX -22 K07MX -01
K07CGX -22 K07MGX -01
K03C -31 K03M -10
K07C -31 K07M -10
K07CG -31 K07MG -10
K07CF -31 K07MF -10
K07CX -31 K07MX -10
K07CGX -31 K07MGX -10
K03C -40
K07C -40 K03M -10 Sp4
K07CG -40 K07M -10 Sp4
K07CF -40 K07MG -10 Sp4
K07CX -40
K07CGX -40
K07M -22 Sp4
K07MG -22 Sp4

K07M -04 Sp4

K07MG -04 Sp4

K07M -01 Sp4

K07MG -01 Sp4
5
 Contactors

MINI CONTACTORS
K03C, K07C, K07CG (DC), K07CF, K03M, K07M, K07MG (DC), K07MF, K07CX,
K0CGX(DC), K07MX, K07MGX(DC)
DIMENSIONS

K03C, K03M K07C, K07M, K07CG, K07MG K07CF, K07MF K07CX, K07CGX, K07MX, K07MGX

ACCESSORIES

ND2 - Two-pole snap-on auxiliary switch

blocks

ND2C-02 ND2C-11 ND2C-20 ND2M-02

ND2M-11

ND4 - Four-pole snap-on auxiliary

switch blocks

ND4C-04 ND4C-13 ND4C-22 ND4C-31

ND4C-40 ND4M-22 ND4M-31 ND4M-13

6
 Contactors

MINI CONTACTORS
K03C, K07C, K07CG (DC), K07CF, K03M, K07M, K07MG (DC), K07MF, K07CX,
K0CGX (DC), K07MX, K07MGX (DC)

ACCESSORIES
Type Version Rated operational current Ie (A) at AC-15
230 V 400 V 500 V 690 V
ND2 -20, -02, -11 6 4 2 1
ND4 -40, -04, -13, -31, -22 6 4 2 1

MB7 - Mechanical interlock

When a mechanical interlock is used, the minimum time of 50 ms is required from switching off the first contactor to switching on the second contactor
and vice versa.

MOUNTING POSITIONS OF ACCESSORIES

ORDERING DATA
The type designation and control voltage are stated when ordering the contactors.
When ordering snap-on auxiliary switch blocks, only the type is stated.
Example: ND2M-22
K07M - 01 - M7

Control voltage (see page 4), frequency

Version of contacts
Type 7