SIL 2 Certified, vibration-resistant, 316 stainless steel pressure, differential pressure and temperature switches

12 Series hazardous location switches are ideal for operation in tough applications where space is at a premium. A snap-action Belleville spring assembly is used to provide vibration resistance and prolonged switch life. The 316 stainless steel enclosure and hermetically sealed switch provide rugged protection from the environment. Approved for use in hazardous locations worldwide, the 12 Series is installed within applications ranging from offshore oil rigs to rotating equipment, and more.

Class 1, Divisions 1 & 2, Zone 1

UL listed, cUL certified, ATEX flame-proof & CE (LVD, PED) compliant, dual seal compliance to ANSI/ISA 12.27.01

Compact, 316 stainless steel enclosure

Belleville spring design provides set-point stability and vibration resistance

SPDT or DPDT hermetically sealed switches

Variety of pressure sensor materials, including welded stainless steel diaphragm

Convenient field adjustment through concealed adjustment compartment; optional cover locking ring prevents incidental tampering

72” lead-wire with strain relief provided

Adjustable set-point ranges:

Pressure: 1 to 12,500 psi

0,1 to 861,9 bar

Differential Pressure: 0.7 “wcd to 150 psid

1,7 mbar to 10,3 bar

Temperature: -130 to 650 ºF

-90 to 343.3 ºC