Model 18D
Electro-mechanical pressure switch's for connecting and disconnecting electronic circuits utilising pressure. Norgren's 18D pressure monitoring switches reliably monitor minimum pressure and are equipped with automatic switch off and pressure limit warning. Suitable for use in pneumatic, hydraulic and vacuum systems.
Gold-plated microswitch contacts
High number of switching cycles permissible
Designed for pressure monitoring in hydraulic systems
Designed to withstand vibrations up to 15G
Suitable for intrinsically safe operation
ATEX version (Stock No.
622-3647
)
Technical Specification
Contact Rating (ac)
Contact Rating (dc)
Accuracy/Repeatability
Maximum Frequency of Operation (cycles/min)
Fixed Hysteresis
Temperature Range (°C)
Environmental Protection
5A @ 250 Vac inductive
(3A0 resistive)
0.25A @ 250 V(dc)
±3% of Set Pressure
120
-
-20 to +80
-
Approvals
UL; CSA
Pressure Switches
Pressure switches that allow microswitch operation once a pre-set pressure is reached. K and K3 Series incorporate a mechanical stop providing over-pressure protection for the spring and microswitch. Electrical connections for all models to DIN 43650.
Warning
Observe switching range. Do not subject switch to maximum allowable pressure during normal operation. Short pressure peaks must not exceed this value.
