Description
Carrier HK02ZB028 Low Pressure Switch Overview
The Carrier HK02ZB028 is an OEM low pressure switch engineered to protect refrigeration and air conditioning systems from dangerously low refrigerant pressure conditions. Designed as a direct replacement for compatible Carrier equipment, this switch delivers reliable, automatic circuit protection to help prevent compressor damage and maintain system efficiency.
Key Specifications
- Part Number: HK02ZB028
- Brand: Carrier
- Switch Type: Low Pressure Switch
- Open Pressure: 27 PSI
- Close Pressure: 60 PSI
- Lead Length: 48 inches (4 feet)
Features & Benefits
- Opens circuit at 27 PSI to protect the compressor from low refrigerant pressure conditions
- Automatically resets (closes) at 60 PSI once safe operating pressure is restored
- 48-inch lead wires provide flexible installation reach and easy routing within the unit
- OEM Carrier part ensures proper fit and function in compatible equipment
- Helps prevent compressor burnout and costly system failures caused by low-charge conditions
- Durable construction for long-term, dependable performance in residential and light commercial HVAC applications
Application
The HK02ZB028 is intended for use in Carrier air conditioning and heat pump systems requiring low-side pressure protection. Always verify compatibility with your specific Carrier model before installation. Consult the equipment service manual for proper wiring and mounting procedures.







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