The Carrier HK02SA420 is a factory authorized OEM high-pressure safety switch engineered to protect HVAC and refrigeration systems from dangerous over pressure conditions. Designed for use in Carrier units, this high-precision switch automatically cuts power when refrigerant pressure exceeds safe levels — preventing compressor damage and extending the life of your system.
Key Features
- Over Pressure Protection: Opens at about 660 PSI to protect against excessively high refrigerant pressure, then resets when pressure falls below 505 PSI.
- Durable OEM Construction: Built to Carrier’s exacting standards to ensure long-term reliability and system integrity.
- Compact & Lightweight: Weighs approximately 0.21 lb, making it easy to install even in tight or confined system compartments.
- Easy Drop In Replacement: Designed for a direct replacement of existing pressure switches without complex modifications.
- System Safety Assurance: Helps prevent costly compressor failures and system downtime by shutting the system off before pressure becomes harmful.
- Wide Compatibility: Compatible with a variety of Carrier HVAC and commercial refrigeration models.
