RectorSeal RSH-50 VRM Kit Voltage Range Monitor with Integrated Surge Protection, 120/240 VAC RC-96421

The RectorSeal RSH-50 VRM Kit (RC-96421) combines a voltage range monitor and HVAC surge protection device to protect condensers and heat pumps from both sustained voltage irregularities and transient surge events. Designed for 120/240 VAC single-phase equipment, the voltage monitor continuously evaluates supply voltage and automatically disconnects the load when voltage exceeds preset high or low thresholds, restoring operation once normal voltage returns. The integrated surge protection module provides suppression against lightning-induced and utility switching surges. Intended for installation at the condenser disconnect or service entry point, the RSH-50 VRM Kit provides dual-layer protection for compressors, inverter boards, and electronic controls in residential and light commercial HVAC applications.