Copeland 971-0554-27 Overload

Maintain the integrity of your refrigeration and air conditioning systems with the Copeland 971-0554-27 Overload. This external protector kit is engineered for precision, monitoring both temperature and amperage to prevent motor burnout in Copeland compressors. When line voltage or thermal thresholds are exceeded, the compressor motor protector breaks the circuit, stopping the unit before catastrophic winding failure occurs. Designed for seamless integration into residential and commercial HVACR setups, it serves as a critical defense against common system stressors such as low refrigerant charge, restricted airflow, or capacitor failure. This bimetal overload relay provides automated reset capabilities, ensuring the compressor returns to service once safe operating temperatures are restored, minimizing unnecessary downtime for the contractor and end-user.

Key Benefits

• Compatible with a wide range of Copeland compressor models for easy field replacement.
• Dual-action protection responds to both excessive current (amperage) and high internal temperatures.
• Constructed with high-grade copper and aluminum for reliable electrical conductivity and thermal response.
• Prevents permanent motor damage and expensive system washouts by interrupting power during thermal overload events.
• Small footprint (3.5" x 2.7" x 2.2") and lightweight 0.08lb design allow for quick installation in tight electrical housings.

Common Questions

• How do I test if the Copeland 971-0554-27 is tripped? Use a multimeter to check for continuity across the terminals. If the compressor is hot and you read an "open" circuit, the overload has likely tripped to protect the motor.
• Is this an internal or external protector? The 971-0554-27 is an external protector kit designed to be mounted on the compressor housing rather than embedded within the windings.
• What causes this part to trip frequently? Frequent tripping often indicates system-side issues such as a failing run capacitor, dirty condenser coils, or incorrect refrigerant levels causing high head pressure.

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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.