Surge protective devices

RectorSeal’s RSH Series of surge protective devices is designed to protect all single-phase, 120/240-V air conditioning, heat pump and ductless mini-split systems from transient over-voltage and natural-cause surges. Units provide protection from surges up to 60,000 amps and from repetitive surges up to 20,000 amps. LED lights and/or audible alarms indicate if the device is no longer providing protection.

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