Vulcain VA301IRFSR22 Sensor 30067439-890 The HH12ZB170 automatic reset switch
Baker’s notes & crumb story
Description
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
With a 1/4" bore and clockwise (CW rotation) orientation
As a spring return normally closed actuator
protected by a NEMA 4X watertight enclosure
Vulcain VA301IRFSR22 Sensor 30067439-890 The HH12ZB170 automatic reset switchThe 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