Description
Mars 19169 — Model 169 Potential Relay, 332V Coil Voltage
The Mars 19169 is a Model 169 Potential Relay designed for use in single-phase compressor motor starting circuits. With a 332V coil voltage rating, this relay is engineered to precisely match the start winding voltage of compatible compressors, ensuring dependable motor starting performance in residential and light commercial HVAC and refrigeration applications.
How It Works
A potential relay (also known as a voltage relay or start relay) monitors the back-EMF (counter-electromotive force) produced by the motor’s start winding. As the compressor motor accelerates, the voltage across the start winding rises. Once it reaches the relay’s pickup voltage, the relay opens the start capacitor circuit, removing the start capacitor from the circuit and allowing the motor to run efficiently on the run capacitor alone. This protects the start capacitor from overheating and extends the life of the motor.
Key Features
- Model 169 Potential Relay for single-phase compressor motor starting
- 332V coil voltage rating for precise start winding compatibility
- Designed to open start capacitor circuit at the correct motor speed
- Helps protect start capacitors and extend compressor motor life
- Suitable for residential and light commercial HVAC and refrigeration systems
- Mars quality construction for long-lasting, reliable operation
Applications
- Single-phase hermetic and semi-hermetic compressor motors
- Air conditioning and heat pump systems
- Refrigeration equipment
- Hard-start and compressor motor starting circuits
Why Choose Mars Relays?
Mars (Motors & Armatures) is a trusted name in the HVAC/R industry, offering a broad range of electrical components engineered to meet the demands of professional technicians. The Mars 19169 Potential Relay delivers consistent, repeatable performance to keep compressors starting reliably season after season.
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