meaning it seals the valve when unpowered

This kit contains high-grade elastomer seals and replacement wear parts designed to withstand the high-cycle demands of industrial air processing

As a direct 48G30 replacement valve

ensuring the spark arcs at the exact stoichiometric point for reliable burner light-off

it maintains a low-profile footprint ideal for tight mechanical spaces

Schneider Electric (Barber Colman) AM-321 Auxiliary Switch 30067439-890 meaning it seals the valveThe Schneider Electric AM 321 is a precision engineered 2 SPDT auxiliary switch designed to provide reliable position feedback and sequence control for HVAC actuators. Functioning as the AM 322 direct replacement, this unit is built for seamless integration with legacy Barber Colman and modern Schneider Electric actuator assemblies. The assembly features dual Single Pole Double Throw contacts with an adjustable differential, allowing field technicians