Copeland 971-0127-40 Relay
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Copeland 971-0127-40 Relay

Copeland 971-0127-40 Relay

To maintain peak performance in industrial cooling and HVAC systems, installing a high-quality Copeland 971-0127-40 Relay is a non-negotiable step for field technicians. This overload relay is purpose-built for Copeland compressor protection, ensuring that voltage spikes or thermal inconsistencies do not lead to catastrophic winding failure. By precisely monitoring current draw, this HVAC compressor part acts as the primary fail-safe against locked rotor amperage (LRA) events and phase loss, which are common culprits behind premature pump failure. Its compact form factor is specifically designed to fit within standard terminal boxes, making it a reliable OEM replacement relay for 208-230V applications. When your diagnostic suggests a manual or automatic reset failure on the existing protection loop, swapping in this specific 971-0127-40 component restores the factory-spec safety parameters required to keep your condensing units or heat pumps running within their rated thermal limits.

Key Benefits for Technicians
  • Direct OEM Compatibility: Engineered specifically for Copeland scroll and reciprocating compressors to eliminate mounting and calibration issues.
  • Robust Overload Protection: Instantly disconnects power upon detecting excessive current, preventing permanent stator damage.
  • Simplified Serviceability: Features standard spade or screw terminals for rapid field replacement and reduced system downtime.
  • Industrial-Grade Build: Constructed to withstand high-vibration environments typical of commercial refrigeration and heavy-duty HVACR applications.
Common Questions

What are the signs that a Copeland overload relay has failed?
Technicians typically observe the compressor "cycling on protector," where it attempts to start but trips almost immediately, or find that the compressor remains open-circuit despite having proper line voltage at the contactor.

Is the 971-0127-40 a universal fit for all Copeland units?
No, while it covers many models, you must verify the specific amperage rating and terminal configuration. Always reference the compressor’s nameplate and the original parts manual to ensure the trip curve matches your specific motor requirements.

Can I bypass this relay for troubleshooting?
Bypassing is only recommended for momentary testing to verify a faulty protector. Running a compressor without a functioning overload relay significantly increases the risk of a burnout or electrical fire.

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.

$31.34

Original: $89.53

-65%
Copeland 971-0127-40 Relay

$89.53

$31.34

Copeland 971-0127-40 Relay

To maintain peak performance in industrial cooling and HVAC systems, installing a high-quality Copeland 971-0127-40 Relay is a non-negotiable step for field technicians. This overload relay is purpose-built for Copeland compressor protection, ensuring that voltage spikes or thermal inconsistencies do not lead to catastrophic winding failure. By precisely monitoring current draw, this HVAC compressor part acts as the primary fail-safe against locked rotor amperage (LRA) events and phase loss, which are common culprits behind premature pump failure. Its compact form factor is specifically designed to fit within standard terminal boxes, making it a reliable OEM replacement relay for 208-230V applications. When your diagnostic suggests a manual or automatic reset failure on the existing protection loop, swapping in this specific 971-0127-40 component restores the factory-spec safety parameters required to keep your condensing units or heat pumps running within their rated thermal limits.

Key Benefits for Technicians
  • Direct OEM Compatibility: Engineered specifically for Copeland scroll and reciprocating compressors to eliminate mounting and calibration issues.
  • Robust Overload Protection: Instantly disconnects power upon detecting excessive current, preventing permanent stator damage.
  • Simplified Serviceability: Features standard spade or screw terminals for rapid field replacement and reduced system downtime.
  • Industrial-Grade Build: Constructed to withstand high-vibration environments typical of commercial refrigeration and heavy-duty HVACR applications.
Common Questions

What are the signs that a Copeland overload relay has failed?
Technicians typically observe the compressor "cycling on protector," where it attempts to start but trips almost immediately, or find that the compressor remains open-circuit despite having proper line voltage at the contactor.

Is the 971-0127-40 a universal fit for all Copeland units?
No, while it covers many models, you must verify the specific amperage rating and terminal configuration. Always reference the compressor’s nameplate and the original parts manual to ensure the trip curve matches your specific motor requirements.

Can I bypass this relay for troubleshooting?
Bypassing is only recommended for momentary testing to verify a faulty protector. Running a compressor without a functioning overload relay significantly increases the risk of a burnout or electrical fire.

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.

Product Information

Shipping & Returns

Description

To maintain peak performance in industrial cooling and HVAC systems, installing a high-quality Copeland 971-0127-40 Relay is a non-negotiable step for field technicians. This overload relay is purpose-built for Copeland compressor protection, ensuring that voltage spikes or thermal inconsistencies do not lead to catastrophic winding failure. By precisely monitoring current draw, this HVAC compressor part acts as the primary fail-safe against locked rotor amperage (LRA) events and phase loss, which are common culprits behind premature pump failure. Its compact form factor is specifically designed to fit within standard terminal boxes, making it a reliable OEM replacement relay for 208-230V applications. When your diagnostic suggests a manual or automatic reset failure on the existing protection loop, swapping in this specific 971-0127-40 component restores the factory-spec safety parameters required to keep your condensing units or heat pumps running within their rated thermal limits.

Key Benefits for Technicians
  • Direct OEM Compatibility: Engineered specifically for Copeland scroll and reciprocating compressors to eliminate mounting and calibration issues.
  • Robust Overload Protection: Instantly disconnects power upon detecting excessive current, preventing permanent stator damage.
  • Simplified Serviceability: Features standard spade or screw terminals for rapid field replacement and reduced system downtime.
  • Industrial-Grade Build: Constructed to withstand high-vibration environments typical of commercial refrigeration and heavy-duty HVACR applications.
Common Questions

What are the signs that a Copeland overload relay has failed?
Technicians typically observe the compressor "cycling on protector," where it attempts to start but trips almost immediately, or find that the compressor remains open-circuit despite having proper line voltage at the contactor.

Is the 971-0127-40 a universal fit for all Copeland units?
No, while it covers many models, you must verify the specific amperage rating and terminal configuration. Always reference the compressor’s nameplate and the original parts manual to ensure the trip curve matches your specific motor requirements.

Can I bypass this relay for troubleshooting?
Bypassing is only recommended for momentary testing to verify a faulty protector. Running a compressor without a functioning overload relay significantly increases the risk of a burnout or electrical fire.

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.