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Built for longevity in standard 24V control circuits
and SV9502 series gas valves
The HH12ZB170 automatic reset switch is constructed with a durable bimetal sensing element and silver-alloy contacts to ensure reliable electrical continuity and long-term cycling performance
As a spring return normally closed actuator
With a 1/4" bore and clockwise (CW rotation) orientation
Vulcain VA301IRFSR22 Sensor 30067439-890 Built for longevity in standardThe Vulcain VA301IRFSR22 is a professional grade R 22 refrigerant gas sensor engineered for precise leak detection in commercial and industrial mechanical rooms. This NDIR (Non Dispersive Infrared) sensor serves as a direct M 505418 replacement, ensuring seamless integration with existing Honeywell 301 EM series controllers. Designed for "at the source" monitoring, it features a rugged ABS polycarbonate housing that facilitates mounting directly on