Description
The Packard PR9063 is a 90-63 potential relay engineered to assist single-phase compressor starting in residential and light commercial HVAC systems. Potential relays are a critical component in compressor motor starting circuits, working by sensing the back-EMF (electromotive force) generated by the start winding as the motor accelerates. Once the motor reaches sufficient speed, the relay opens the start capacitor circuit — protecting the capacitor and ensuring smooth, efficient compressor operation every time.
Designed as a direct replacement for OEM 90-63 potential relays, the PR9063 from Packard delivers the dependable switching performance that HVAC technicians rely on in the field. Its compact, industry-standard form factor makes installation straightforward, and its compatibility with a wide range of single-phase compressor applications makes it a practical addition to any service van stock.
Key Features
- 90-63 potential relay for single-phase compressor motor starting circuits
- Senses back-EMF to open the start capacitor circuit at proper motor speed
- Protects start capacitors from overheating and premature failure
- Industry-standard 90-63 designation for broad OEM cross-reference compatibility
- Compact design for easy installation in tight equipment compartments
- Suitable for residential and light commercial HVAC compressor applications
Applications
- Single-phase air conditioning and heat pump compressors
- Refrigeration compressor motor starting circuits
- OEM and aftermarket replacement in systems requiring a 90-63 potential relay
Trust Packard’s PR9063 to deliver consistent, reliable compressor starting performance — keeping your equipment running and your service calls efficient.
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