Copeland 940-0088-00 Relay Kit

The Copeland 940-0088-00 Current Relay Kit is a critical electrical component engineered for precise compressor motor starting and protection in commercial refrigeration and HVAC systems. As a genuine OEM Copeland replacement part, this relay is designed to monitor the start winding current in single-phase motors, ensuring the start capacitor is engaged during the high-torque startup phase and promptly disconnected once the motor reaches sufficient velocity. This current-sensing relay features a specific 28.9A pick-up and 23.7A drop-out rating, optimized to prevent winding overheating and ensure long-term HVAC system reliability. For technicians performing compressor troubleshooting, this kit provides a drop-in solution to resolve common issues such as hard-starting or frequent overload tripping. Built with heavy-duty contacts and consistent calibration, the 940-0088-00 facilitates stable refrigeration compressor performance in demanding environments where voltage fluctuations or high-cycle operations are common.

• Precise Current Regulation: Calibrated specifically for high-torque Copeland hermetic compressors to manage the transition from start to run windings.
• Direct OEM Compatibility: Ensures seamless integration with existing Copeland compressor wiring diagrams without the need for field modifications.
• Enhanced Motor Protection: Prevents premature failures by ensuring the start circuit is only active when necessary, protecting the integrity of the compressor motor.
• Industrial-Grade Durability: Engineered to withstand the thermal and electrical stresses of commercial refrigeration cycles.

Is this relay compatible with all Copeland single-phase compressors?
No, this current relay is designed for specific motor types and amperages. Technicians should verify the 940-0088-00 part number against the original equipment specifications or the nameplate on the compressor shell to ensure proper relay pick-up and drop-out values are met.

What are the signs that a Copeland current relay needs replacement?
Common indicators include the compressor failing to start while exhibiting a "humming" sound, the start capacitor showing signs of swelling from being left in the circuit too long, or the compressor tripping on the thermal overload during the startup sequence.

Does this kit include the mounting hardware or wiring harness?
This kit typically includes the current relay unit and standard terminal connections. Technicians should always inspect the existing wiring for signs of heat damage or carbon tracking before completing the installation of the new relay.

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.