Copeland 940-C411-83 Relay Kit

The Copeland 940-C411-83 Relay Kit is a critical OEM compressor starting component designed for high-torque applications in commercial refrigeration and air conditioning systems. This current sensing relay serves as the direct replacement for 040-0163-06, ensuring precise control over the start winding excitation. Engineered for single-phase compressor motors, it effectively manages high starting inrush currents to protect motor windings from premature failure. The 940-C411-83 relay is essential for systems where consistent starting torque is required under varying load conditions. It facilitates a clean break of the start circuit once the motor reaches sufficient RPM, preventing capacitor overheating and contact welding. For technicians performing HVAC compressor troubleshooting, this genuine Copeland part provides the exact electrical specifications required to maintain system efficiency and operational reliability without the compatibility risks associated with generic universal alternatives. These Copeland replacement parts are built to withstand the rigors of high-cycle commercial environments.

• Direct OEM Replacement: Replaces 040-0163-06, ensuring physical footprint and electrical terminal alignment.
• Enhanced Motor Protection: Prevents start winding damage by delivering accurate current relay cut-out timing.
• Improved Starting Torque: Optimized for use with start capacitors in demanding HVACR refrigeration systems.
• Industrial Build Quality: High-grade contacts designed to resist pitting and carbon buildup during repetitive cycling.

Is this relay compatible with non-Copeland compressors?
This kit is specifically engineered for Copeland compressors. While electrical specs may overlap, we recommend verifying the compressor cross-reference to ensure appropriate pick-up and drop-out current values.

Can I use this to replace a potential relay?
No, the 940-C411-83 is a current-style relay. It operates based on motor amperage rather than back-EMF voltage. It must be installed as a direct OEM HVAC part replacement to maintain proper electrical sequence.

What causes these relays to fail prematurely?
Common failure points include scorched contacts due to low voltage or faulty start capacitors. Always check the compressor start capacitor when replacing any start relay kit to ensure the entire circuit is within spec.

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.