620
Overpressure and
vacuum switch
– 900 mbar ... 6 bar
625
HUBA-REGISTERED TRADE MARK
EDITION 07/2002
Huba Control
FOR FINE PRESSURE AND FLOW MEASUREMENT
Type series 620: Base ABS or PA
Type series 625: Base aluminium
or brass.
Other specifications or surface
treatment on request.
Weight
Type 620: 70 grams
Type 625 alu: 100 grams
Type 625 brass: 200 grams
Installation arrangement
Unrestricted.
For switching points calibrated
in the factory indicate installation
arrangement.
Pressure connections
Type series 620:
EDITION 07/2002
Connection pipe Ø 6 mm, inside
thread M5, thread M12 x1 with
counternut.
Technical overview Legend to cross-section drawing Type series 625:
With their finely tuned range in- 1 Switching point setting Thread G 1/8, G 1/4, M12 x1 with
crements and long-term switching 2 AMP tab connectors counternut.
point stability, overpressure and va- 3 Switching difference setting See order code selection table.
cuum switches of type series 620/25 4 Compression spring Other threads on request.
are suitable for monitoring liquids 5 Changeover contact Diaphragm
and gases in industrial equipment 6 Contact element
manufacturing applications in gene- 7 Diaphragm A – NBR-based E – EPDM
ral, in process technology or in food C – FPM F – Silicon
Pressure ranges Parts that come into contact with
automation. The rugged mechanics
are the assurance of high operating See order code selection table. the medium, to base and
reliability, even in the presence of diaphragm: Polyacetal and Inox
Maximum overpressure 1.4301 with vacuum switch version.
percussions or vibrations. A range of
switches with many standard ver- Maximum overpressure and test Electrical connections
sions and ideal price /performance pressure see setting ranges.
Screw terminals (option)
ratio, even in the case of small quan- Setting ranges AMP tab connectors 6,3 mm
tities.
See graphic on adjacent page/rear Cable gland PG 11 with cover
cover. Contact system
Lowest turn-on pressure Changeover contact
2 mbar
Contact material / Loading
Switching point and switching
difference adjustable. Nominal voltage
Type of current: VAC 250 250
Lowest switching difference 1 mbar.
Nominal current
for resistive loading: 1A 6A
Reproducibility
Nominal current
± 5% of the switching point of for motorloading: 0.5 A 3A
type A and F diaphragm material, Contact material: AgCdO AgCdO
but as a minimum ± 0.3 mbar. Protection class
± 10% of the switching point of IP 00 without cover
type C and E diaphragm material, IP 54 with cover (for installation
but as a minimum ± 0.6 mbar. arrangement electrical connections
upward)
Temperature range
Service life
Medium and ambient temperature
Mechanical and electrical service
The distinct advantages with diaphragm type 625:
life:
NBR-based 0 … 80 °C
106 switching cycles, if the per-
• High accuracy by 13 ideally de- FPM –10 … 80 °C
mitted switching difference
signed pressure range increments EPDM –10 … 80 °C
is respected according to the dia-
Q (Silicon) – 40 … 80 °C
• Switching differences adjustable gram on the back.
Type 620 see order code selection Accessories
• High long-term stability with table.
reproducibility of switching points – Plastic cover
up to < ± 0.3 mbar Case construction – Mounting bracket
Type series 620/625: – AMP connector set
• Customer-specific switching points – Screw terminals
Switch case fiberglass-reinforced
adjustable in factory plastic.
• Rugged industrial switch with
excellent price /performance ratio
A – Plastic cover
with PG 11
on side, Fig. 1
B – Screw terminals
AMP connector set
C – Mounting bracket
A B C D E – Type 620
with pressure
case ABS/PA
F – Type 625 with
pressure case
alu/ brass
Versions
E F G H
Order code selection table EDITION 07/2002 620 . 9 X X X X X X X X
Switching
p max pt 2 capacity 250 VDC
Pressure ranges1 2 … 8 30 50 1A 1
(mbar) 6 … 75 300 500 1A 2
12.5 … 80 300 500 6A 3
12.5 … 200 300 500 1A 4
25 … 220 300 500 6A 5
Pressure connections / Hose Ø 6 mm (M12x1) ABS up to 70 °C 0
pressure case Hose Ø 6 mm (M12x1) PA 66 up to 80 °C 1
Inside thread M5 (M12x1) ABS up to 70 °C 2
Inside thread M5 (M12x1) PA 66 up to 80 °C 3
Diaphragm material Type A NBR based 0
Type C FPM 2
Type E EPDM 4
Type F Q (Silicon) 6
625
Pressure 9
Vacuum 6
Switching
p max pt 2 capacity 250 VDC
Pressure ranges1 (mbar) 2 … 8 30 50 1A 0
6 … 75 300 500 1A 1
12.5 … 80 300 500 6A 2
12.5 … 200 300 500 1A 3
25 … 220 300 500 6A 4
80 … 2000 6000 10 000 1A 5
120 … 2200 6000 10 000 6A 6
1000 … 6000 6000 10 000 6A 7
Vacuum ranges1 –4 … –30 - 50 - 100 1A 1
–15 … –80 - 300 - 500 1A 2
–30 …–150 - 300 - 500 6A 3
–50 …–600 - 1000 - 1000 6A 4
–100 …–900 - 1000 - 1000 6A 5
Pressure connections / G 1/8 aluminium 1
Pressure case M12x1 aluminium 2
G 1/4 brass 3
G 1/4 aluminium 4
G 1/8 brass B
Diaphragm material Type A NBR based 0
Type C FPM 2
Type E EPDM 4
Type F Q (Silicon) 6
Accessories 620/625 Plastic cover
with PG 11 on side fig. 1 1 0 5 8 3 6
Mounting bracket with hole Ø 12,5 mm for M12 1 0 4 2 5 9
Mounting bracket with hole Ø 14 mm for G 1/4 1 0 2 8 7 2
AMP connector set 1 0 3 4 7 9
Screw terminal set 1 0 3 4 9 1
1 Other ranges on request
2 pt = test pressure
Setting ranges / dimensions in mm / electrical connections
EDITION 07/2002
620/25.09/2002.HUBA/620/25e.DEP.Schmo020687.Woh.
L
X X L
G 1/4 16
G 1/8 16
Technical data subject to change.
M 12 x 1 14
Internet: www.hubacontrol.com
Huba Control Switzerland Huba Control United Kingdom Huba Control France Agent for:
Headquarters Unit 3 Network Point e-mail: info.fr@hubacontrol.com
Industriestrasse 17 Range Road Huba Control Germany
CH-5436 Würenlos GB-Witney Oxfordshire OX29 0YD e-mail: info.de@hubacontrol.com
Phone ++41 (0) 56 436 82 00 Phone 01 993 776 667 Huba Control Netherlands
Fax ++41 (0) 56 436 82 82 Fax 01 993 776 671 e-mail: info.nl@hubacontrol.com
e-mail: info.ch@hubacontrol.com e-mail: info.uk@hubacontrol.com
