Copeland 940-0001-60 Start Relay

The Copeland 940-0001-60 is a high-duty potential start relay engineered for single-phase compressor motor applications. As a veteran-grade OEM replacement part, it utilizes a 383V coil and is calibrated for a precise pickup voltage range of 190 to 200V and a dropout voltage of 55 to 115V. This electromechanical relay is essential for managing the start capacitors in high-torque refrigeration and AC systems, specifically compatible with Copeland compressor models like the REB3-0150-PFV and RR20K1-PFV. The 3-screw terminal configuration and rugged panel-mount design ensure a secure, reliable interface even under harsh industrial vibration. This 60 Hz start relay is the industry standard for ensuring consistent motor torque during the critical startup phase, preventing winding stress and improving overall system efficiency. This component replaces legacy part numbers such as 040-0001-60 and the GE 3ARR3KC24S5, making it a versatile HVAC compressor relay for your service truck inventory.

• Broad Compatibility: Direct drop-in for multiple Copeland scroll and reciprocating compressor series.
• Precision Calibration: Factory-set 190-200V pickup ensures consistent capacitor cutout to prevent overheating.
• Industrial Build: Heavy-duty 35A rated contacts designed to withstand high inrush current cycles.
• Simplified Service: Clear 3-screw terminal layout allows for rapid field installation and troubleshooting.

• What causes a potential relay like the 940-0001-60 to fail? Failures typically stem from pitted contacts due to repetitive arcing or a weakened internal spring that prevents the contacts from opening at the correct pickup voltage.
• Can I use this relay to replace a 3ARR3KC24S5? Yes, the 940-0001-60 is the official OEM cross-reference for the GE 3ARR3KC24S5 and 040-0001-60 models.
• What happens if the dropout voltage is incorrect? If the dropout voltage is too high, the start capacitor may re-engage while the motor is running, potentially leading to capacitor or motor winding damage.

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.