Copeland 940-0140-03 Relay

The Copeland 940-0140-03 is a high-performance Quick Connect Potential Relay engineered for precise inductive load management in professional refrigeration and air conditioning systems. Designed specifically for Copeland compressors, this component ensures reliable motor starting by accurately sensing back EMF to disconnect the start capacitor once the motor reaches optimal RPM. This HVAC potential relay features a 395 VAC coil rating with a calibrated 190/200V pick-up and a 60/130V drop-out range, providing the electrical stability required for demanding residential and commercial applications. Built with a rugged aluminum alloy housing, the 940-0140-03 relay maintains operational integrity in extreme environments ranging from -20°F to 150°F. The 1/4-inch quick-connect terminals allow for rapid field replacement and secure wiring, making it an essential OEM replacement part for technicians maintaining system efficiency and preventing motor burnout under high-torque conditions.

• Precise Voltage Sensing: Engineered with specific 190/200V pick-up and 60/130V drop-out thresholds for optimized compressor starting.
• Enhanced Thermal Tolerance: Durable construction allows for consistent performance in ambient temperatures from -20°F to 150°F.
• Streamlined Installation: Features standard quick-connect terminals to reduce downtime during emergency service calls.
• OEM Compatibility: Designed for direct integration with Copeland RS-series compressors and diverse motor control circuits.
• System Longevity: Helps prevent start-winding failure by ensuring the start capacitor is removed from the circuit at the exact moment required.

What are the specific coil ratings for the 940-0140-03?
This relay is rated for a 395 VAC coil, operating at 60 Hz, with a pick-up voltage of 190-200V and a drop-out voltage of 60-130V.

Is this relay compatible with other compressor brands?
While designed as a genuine Copeland compressor part, it can be used in other HVACR systems if the electrical specifications, pick-up/drop-out voltages, and terminal configurations match the system requirements.

Does this unit require a specific mounting position?
Potential relays are position-sensitive; for optimal contact performance and gravity-assisted operation, ensure the unit is mounted according to the specific orientation indicated in the technical service manual.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.