Carrier 51302040480 Contactor

The Carrier 51302040480 is a high-performance 2-pole definite purpose contactor engineered for heavy-duty HVACR applications. Specifically rated for 30 Amps at a coil voltage of 208/240V, this genuine OEM component provides dependable switching for compressors and motors in residential and light commercial equipment. Designed for high-cycle reliability, the 51302040480 features an inductive rating of 30A and a resistive rating of 40A, making it a versatile replacement for various Carrier, Bryant, and Payne air conditioning and heat pump units.

For service technicians, this dual pole contactor offers a compact footprint with industry-standard mounting, ensuring a direct fit during field repairs. The heavy-duty silver cadmium oxide contacts are built to resist welding and pitting, maintaining electrical continuity under 50/60Hz operating conditions. Transitioning to this Carrier 30 Amp 240V contactor ensures that the system maintains its original engineering specifications for optimal arc suppression and thermal management.

• OEM Compatibility: Exact drop-in replacement for Carrier, Bryant, and Payne systems, ensuring electrical and mechanical alignment.
• Robust Electrical Rating: Rated for 30 FLA (Full Load Amps) and 40A resistive loads, providing ample overhead for most 1.5 to 5-ton condensers.
• Durable Construction: Built with high-grade housing materials and silver-alloy contacts to extend operational life in high-ambient environments.
• Simplified Installation: Features standard lug terminals and quick-connect spade terminals for efficient wiring and secure connections.

Can I use this contactor as a replacement for a 1-pole model?
While a 2-pole contactor can technically replace most 1-pole units with the same voltage and amperage, it will break both lines of power instead of one. Verify the wiring schematic of your specific unit to ensure compatibility with the crankcase heater and safety circuit.

What are the symptoms of a failing Carrier 51302040480 contactor?
Technicians typically look for burnt or "pitted" contacts, a buzzing/chattering sound from the coil, or a compressor that fails to start despite receiving a 24V or 240V call. If the contacts are welded shut, the outdoor fan or compressor may run continuously even when the thermostat is satisfied.

Is this contactor compatible with 120V control circuits?
No. This specific model features a 208/240V coil. Installing it in a system that provides a 24V or 120V control signal will prevent the coil from pulling in the contacts. Always match the coil voltage to the transformer output of the system.

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.