Corrosion Resistance: Durable epoxy powder paint finish protects the steel shell from environmental degradation in demanding mechanical rooms

The board supports both 24VAC and 115VAC intercepted calls

it provides reliable shifting without the need for a minimum pressure differential

The visible set point indicator and internal adjustment screw simplify field configuration and performance verification

SPDT Auxiliary Switch

Markel 29157004 Limit R-410A Corrosion Resistance: Durable epoxy powderThe Markel 29157004 Limit is a mission critical high limit safety switch designed for precision thermal protection in HVACR systems. Specifically engineered for duct heaters and electric heat assemblies, this manual reset limit prevents catastrophic equipment failure by breaking the electrical circuit when internal plenum temperatures exceed safe thresholds. Identified by the technical designation MFHE LIMIT RD103 002 104C, this component triggers at