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Technical Data
Fluid:
Neutral, gaseous and liquid fluids
Operation:
Diaphragm
Port size:
G1/4 (BSPP), 1/4 NPT, Flange
Operating Pressure:
-1 to 30 bar
Operating Temperature:
-10 to + 80 ?C
Operating Viscosity:
Up to 1000 mm2/s (±450ssn).
Fluid Temperature:
-20 to +80?C
Maximum temperature at switching element:
+80?C
Repeatability:
±3%, for vacuum ±4%
Electrical Connection:
Acc. to DIN 43650
Switching Element:
Microswitch
Degree of Protection:
IP65
Mounting:
Optional
Part Number Pressure Range Switching Pressure Maximum Switching Pressure Sensor Fluid Connection Weight Dimension
(bar) †† Difference ** Over Pressure * (Cycles per min) Materials (kg) Drawing No.
(bar) †† (bar) ††
Lower Upper Housing Seal Type Size
Range Range Dyn./Static
VH 0880100 -1 – 0 0,15 0,18 80 100 AL FKM † Female G1/4 0,2 01
VH 0880120 -1 – 0 0,15 0,18 80 100 AL FKM † Female 1/4 NPT 0,2 02
VH 0880126 ? -1 – 0 0,15 0,18 80 100 AL FKM † Female G1/4 0,2 03
VH 0881100 -1 – 0 0,15 0,18 80 100 AL FKM † Flange - 0,2 03
VH 0880200 0,2 – 2 0,15 0,27 80 100 AL FKM † Female G1/4 0,3 02
VH 0880220 0,2 – 2 0,15 0,27 80 100 AL FKM Female 1/4 NPT 0,2 02
VH 0880226 ? 0,2 – 2 0,15 0,27 80 100 AL FKM Female G1/4 0,2 04
VH 0881200 0,2 – 2 0,15 0,27 80 100 AL NBR Flange - 0,2 04
VH 0880300 0,5 – 8 0,25 0,65 80 100 AL NBR Female G1/4 0,2 01
VH 0880320 0,5 – 8 0,25 0,65 80 100 AL NBR Female 1/4 NPT 0,2 02
VH 0880326 ? 0,5 – 8 0,25 0,65 80 100 AL NBR Female G1/4 0,2 02
VH 0881300 0,5 – 8 0,25 0,65 80 100 AL NBR Flange - 0,2 01
VH 0880400 1 – 16 0,30 0,90 80 100 AL NBR Female G1/4 0,2 02
VH 0880420 1 – 16 0,30 0,90 80 100 AL NBR Female 1/4 NPT 0,2 01
VH 0880426 ? 1 – 16 0,30 0,90 80 100 AL NBR Female G1/4 0,2 02
VH 0881400 1 – 16 0,30 0,90 80 100 AL NBR Flange - 0,2 01
VH 0880600 1 – 30 1,0 5,00 80 100 AL NBR Female G1/4 0,2 02
VH 0880620 1 – 30 1,0 5,00 80 100 AL NBR Female 1/4 NPT 0,2 02
Series 18 D Pneumatic Pressure Switches
N/UK 5.11.021.02 Our policy is one of continued research and development. We therefore reserve the right to amend, without notice, the specifications given in this document. 04/98
For your local Norgren Technical Sales Centre phone 0345 662266. For your local Norgren Distributor phone 0345 227777.
IMI Norgren Limited, PO Box 22, Eastern Avenue, Lichfield, Staffordshire WS13 6SB
General Information
* Observe switching range. Do not subject switch to max. allowable
pressure during normal operation. Even short pressure peaks
must not exceed this value.
** Max. values.
† Static seal: O-ring (NBR)
†† 1 bar = 14.503 psi.
? Free of laquer impairing substances.
Key to materials: Al = Aluminium
NBR = Perbunan
FKM = Viton
Load Level Type of Current Type of Load Umin Maximum Permanent Current Imax [A] at U [V] Contact life †
[V] 30 48 60 125 250 electrical mechanical
at Imax at I ≈ 0
Standard *
AC Resistive load 12 5 5 5 5 5 5 x 104 ≥107
(e.g. contractors, switching switching
solenoids)
AC Inductive load, 12 3 3 3 3 3 cycles cycles
cos ≈ 0.7
DC Resistive load 12 5 1,2 0,8 0,4 -
DC Inductive load, 12 3 0,5 0,35 0,05 -
L/R ≈ 10 ms
Low **
AC Resistive load 5 †† 0,34 0,2 0,17 0,08 0,04 2 x 105 ≥ 107
(e.g. electronic switching switching
circuits)
DC Inductive load, 5 †† 0,1 0,01 - - - cycles cycles
L/R ≈ 10 ms
Making and/or breaking capacity
Change-over switch with gold-plated contacts
Reference number of switchings: 30/min, Reference temperature: +30°C
Spark quenching with diode with DC and inductive load:
Imax = 1.5 x Imax of table上海現貨norgren壓力開關
Imin = 1 [mA]上海現貨norgren壓力開關
Creepage and air paths correspond to insulation group B according to
VDE Reg. 0110 (except contact clearance of microswitch).
* Gold-plating not required as it would decay. Max. perm. in-rush
current (appr. 30 ms) ACmake = max. 15A.
** Gold-plating required (will not decay).
† 50% of the respective switching current I nearly doubles contact
life. The mechanical life depends on the field of application.
†† Lower value of critical voltage guarantees sufficient contact safety.
Lower voltages permissible under favourable conditions.