Markel 29157004 Limit 321702-401 allowing the heating cycle to

allowing the heating cycle to resume without technician intervention

Universal Mounting: Can be installed in any position (except upside down) to accommodate various HVAC gas valve wiring configurations

Operating with a 25A inductive current rating and a 480VAC coil voltage

to ensure the internal regulator functions correctly

Technicians should follow standard HVAC brazing practices

Markel 29157004 Limit 321702-401 allowing the heating cycle toThe 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