Description
The Supco SUPR is a 30-amp universal potential relay engineered to provide dependable compressor starting assistance across a wide range of single-phase HVAC and refrigeration systems. Designed with versatility in mind, this relay is compatible with numerous compressor applications, making it an ideal replacement part for technicians who need a reliable, go-to solution in the field.
How It Works
A potential relay (also known as a voltage relay) is used in conjunction with a start capacitor to assist single-phase compressor motors during startup. As the motor accelerates and back-EMF (electromotive force) rises to the relay’s pickup voltage, the relay opens its normally closed contacts, removing the start capacitor from the circuit. This protects the capacitor and motor windings from damage while ensuring a fast, smooth start every time.
Key Features
- Universal design compatible with a wide range of single-phase compressors
- 30-amp contact rating for robust, reliable switching performance
- Normally closed contacts open on rising voltage to disconnect the start capacitor
- Compact form factor for easy installation in tight equipment spaces
- Built for long service life in demanding HVAC and refrigeration environments
- Trusted Supco quality — a leading name in HVAC electrical components
Typical Applications
- Residential and light commercial air conditioning compressors
- Heat pump compressors
- Refrigeration compressors requiring start capacitor assistance
- Hard-start kit configurations
Why Choose Supco
Supco has been a trusted manufacturer of HVAC/R electrical components for decades. Their potential relays are known for consistent pickup and drop-out performance, helping technicians reduce callbacks and extend equipment life.
Specifications
- Brand: Supco
- Model: SUPR
- Contact Rating: 30A
- Type: Universal Potential Relay
- Application: Single-phase compressor motor starting
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