Johnson Controls DMPR-KC050 Crankarm this HVAC limit control delivers

this HVAC limit control delivers the heavy-duty electrical ratings (up to 25A resistive) required for demanding residential and commercial heating cycles

no-slip cam linkage

Is this spring compatible with the 325-3 or 325-7 series

Common Questions: What are the symptoms of a bad limit switch on a furnace

this unit optimizes CFM output while maintaining structural integrity under high torque

Johnson Controls DMPR-KC050 Crankarm this HVAC limit control deliversThe Johnson Controls DMPR KC050 Crankarm is a heavy duty linkage component engineered for demanding HVAC damper applications. Designed to fit a 7 16" diameter shaft, this crankarm provides the mechanical leverage required to translate actuator rotation into precise damper blade movement. The integrated adjustable radius, ranging from 1 inch to 2 3 4 inches, allows technicians to fine tune the stroke and torque delivery, ensuring optimal seal