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The Carrier HK02YA450 is a high pressure switch calibrated to open at 660 psi and reset at 505 psi for HVAC systems. It functions as a safety cutout to interrupt the control circuit at excessive discharge pressures, protecting the compressor and refrigerant circuit. The device is a single pole single throw (SPST) manual reset switch suitable for R-410A systems and nominal control voltages.
OEM Carrier high pressure safety switch, HK02YA450, for HVAC high-pressure cutout at 660/505 psi
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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