Copeland 940-0001-51 Relay Kit

Ensure reliable motor starting performance with the Copeland 940-0001-51 Potential Relay Kit, a critical electrical component designed for high-torque HVACR compressor applications. This field-ready start relay replacement is engineered to disconnect the start capacitor from the circuit once the motor reaches approximately 75% of its rated speed, preventing winding damage and optimizing efficiency. Built to withstand the rigorous demands of industrial refrigeration, the 940-0001-51 features a precise 170-180V pick-up and a 35-77V drop-out range. As a direct OEM compressor part, it eliminates the compatibility guesswork often associated with universal components. The kit includes the necessary mounting hardware and terminals for a seamless potential relay installation, ensuring that your system maintains the exact electrical timing required for heavy-duty operational cycles. For technicians managing refrigeration system troubleshooting, this genuine Copeland part provides the exact electrical specifications needed to restore factory-standard starting torque and protect expensive compressor motors from premature failure.

• Precise Voltage Calibrations: Features a 170-180V pick-up and 35-77V drop-out to ensure exact timing during motor acceleration.
• Enhanced Motor Protection: Prevents start capacitor overheating by reliably de-energizing the start circuit.
• Direct OEM Compatibility: Designed specifically for Copeland compressors, ensuring the bracketry and terminal locations align with existing configurations.
• Industrial-Grade Reliability: Built with high-quality contacts to handle the inductive loads and high-frequency cycling of commercial HVACR units.

Is the Copeland 940-0001-51 a universal replacement?
While many potential relays share similar outward appearances, the 940-0001-51 is calibrated with specific pick-up and drop-out voltages intended for Copeland-approved motor-compressor combinations. Always verify your compressor nomenclature before installation.

What are the symptoms of a failing potential relay?
Common indicators include the compressor "cycling on the overload," the start capacitor showing signs of swelling or venting, or the motor failing to start despite having the correct incoming line voltage.

Can I use this relay for a 208/230V single-phase motor?
Yes, this potential relay is designed for use in 230V applications where high starting torque is required, typically in systems utilizing a start capacitor and a run capacitor.

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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.