Copeland 940-0150-35 Relay

The Copeland 940-0150-35 Relay is a specialized current relay kit engineered for precise load management in fractional horsepower single-phase compressors. Designed as a genuine OEM replacement part, this SPST current relay utilizes a heavy-gauge wire coil wired in series with the motor's run winding to effectively trigger the start circuit during the initial torque phase. With a 24V coil rating and a 30A switching capacity, it ensures high-performance switching and reliable motor protection for light commercial refrigeration and residential air conditioning units. As a technical standard in Copeland compressor parts, the 940-0150-35 is built with a robust surface-mount housing to withstand the vibration and thermal stress common in refrigeration relay kits. This kit includes the necessary mounting hardware and current-sensing components to restore proper starting characteristics, preventing overcurrent conditions and ensuring stable operation of the compressor’s electrical subsystem across various HVACR configurations.

• OEM Precision: Guaranteed compatibility with Copeland start components, maintaining original factory performance specifications.
• High Current Capacity: rated for 30A loads, providing a rugged solution for high-demand compressor start-ups.
• Versatile Application: Ideal for refrigeration current relay replacements in heat pumps, AC systems, and reach-in coolers.
• Enhanced Durability: Robust construction reduces arcing and pitting, extending the service life of the electrical controls.
• Simplified Installation: Compact surface-mount design integrates seamlessly into existing electrical panels for faster field service.

Is the 940-0150-35 compatible with potential relay systems?
No, this is a current-sensing relay designed to monitor line current. It should not be used as a direct substitute for voltage-sensing potential relays unless specified by the manufacturer's wiring diagram.

What causes a current relay to fail prematurely?
Common failure points include scorched contacts from excessive cycling or coil burnout due to prolonged high-amperage draws during stalled rotor conditions.

Does this kit include the start capacitor?
No, this is the relay current kit only. It is intended to control the start circuit; capacitors must be sized and purchased separately based on the compressor's LRA and FLA ratings.

This item is not eligible for free shipping.

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.