To ensure reliable performance

The 5300-653 features silver contacts and rugged terminals to maintain electrical integrity under heavy loads

preventing premature failure during high cycle rates

relying on a thermopile/thermocouple rather than an external 24V power source

Durable 5-foot capillary tube supports optimal bulb positioning for sensitive thermal response

Johnson Controls MR4PMUHV-12 Control THPU32HP7Y To ensure reliable performanceThe Johnson Controls MR4PMUHV 12 is a professional grade, multi function refrigeration defrost control designed for precise temperature management in commercial walk in coolers and freezers. As a primary digital defrost timer replacement, this unit integrates four critical functions into a single HVACR control module: a high accuracy thermostat, a defrost cycle timer, a digital readout, and a defrost termination switch. It supports both electric heat