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The RectorSeal RSH-50 Surge Protective Device (SPD) is meant to protect HVAC equipment from transient over-voltage and surges caused by natural events. It is tailored for single-phase systems that operate at one hundred twenty or two hundred forty VAC. With advanced gas discharge tube technology and TFMOV technology, this SPD safeguards air conditioning units, heat pumps, and ductless mini-split systems in both residential and commercial settings. Its design meets weather rating standards under NEMA 4X and can withstand surges of up to fifty thousand amps.
It is easy to wire and install, making it suitable for various HVAC applications.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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