Explosion Proof Hermetically Sealed (NEMA 4X,7, 9 and 13)
Adjustable high-pressure differential switch. Rugged construction with efficient Nega-Rate® Belleville disc spring sensing mechanism. Maintains set point at high system pressure. Available in all stainless steel construction with hermetically sealed electrical assembly for corrosive atmospheres.
Electrical: Snap-action electrical switch assembly listed by Underwriters’ Laboratories, Inc., FM Approval and CSA International
Electrical Connection: 1/2 NPT male conduit connection with PVC insulated 18 AWG, 18″ long leads
Pressure Connections: 1/4 NPT Female
- Ambient: -40°F to +180°F (-40°C to +82°C)
- Media: -40°F to +300°F (-40°C to +149°C)
Adjustment: External 1/2″ hex head
Note: Turn clockwise to increase set point; approximately 24 turns through range
- Aluminum: Approximately 3 lbs
- Stainless Steel: Approximately 7 lbs
*Temperature limits change with O-Ring selection. See the Electrical Assembly specification sheet for Temperature Class Ratings.