Honeywell C437D2011 Micro Gas Pressure Switch 1/2-5" PSI

Honeywell C437D2011 Features:

• C437 models have direct and reverse acting switching; C637B has single-pole, double-throw switching.
• Models intended for lockout applications must be manually reset before resuming operation.
• Trip-free mechanism on manual reset models ensures that the limit function of the switch cannot be defeated by jamming to reset lever.
• External manual reset button on side of lockout models.
• Enclosed setting impedes tampering and provides dust-resistant operation.
• Clear glass cover allows observation of interior mechanism to aid setting and checkout.
• Mercury switch provides visual indication of switch position
• Heavy die-cast case increases durability and resistance to corrosion.
• Main control diaphragm completely enclosed a leakproof chamber can be vented to a safe area.
• Models available with rainproof, dustproof, sleet and ice resistant enclosure; meets NEMA 3R specification.

Technical Literature: