Pressure switch, brass Bourdon tube, range 30-0" Hg Vac, 3" Hg fixed deadband.

Visible calibrated dial provides an easy and fast check without having to open device causing dangerous conditions to operators; On/off indication (except hermetically sealed snap switch models) gives operator clear indication of state of switched equipment that could be located in another location; Adjustable or fixed deadband supports control applications by reducing equipment wear-out by unnecessary recycling; External switch setpoint adjustments reduces set-up time; Pressure ranges of full vacuum to 8000 psig gives application designers the ability to specify standard equipment, simplifying install and training, and reducing servicing costs; UL listed, CSA approved many models FM approved to support rigorous process applications and regulations; General purpose, weatherproof or explosion-proof enclosures for a variety of indoor or outdoor environments meeting the needs of multiple applications and uses