Copeland 912-3050-01 Contactor

The Copeland 912-3050-01 Contactor is a heavy-duty, 3-pole definite purpose contactor engineered for high-demand HVACR and industrial motor control applications. Operating with a 120V coil voltage, this component is designed to manage 50 amp inductive loads, making it a critical replacement part for large scale condensing units and commercial refrigeration systems. Built with high-grade silver cadmium oxide contacts, it effectively reduces arcing and prevents contact pitting, ensuring a clean electrical break and long-term switching reliability. The compact frame allows for straightforward integration into existing control panels, while the UL-certified design ensures compliance with ARI Standard 780-78. When diagnosing a failed AC compressor contactor, verifying the FLA (Full Load Amps) and LRA (Locked Rotor Amps) ratings against the equipment nameplate is essential. This genuine Copeland component provides the robust electrical conductivity required to handle the inrush current of three-phase motors without premature failure.

• High Amperage Capacity: Rated for 50A Full Load Amps (FLA), providing ample overhead for heavy industrial compressors and fan motors.
• Three-Pole Configuration: Provides simultaneous switching for all three legs of a 3-phase power supply, facilitating balanced load management.
• Arc Suppression: Heavy-duty contact points are engineered to minimize electrical noise and heat buildup during inductive load switching.
• Universal Mounting: Features a standard mounting plate compatible with most primary HVACR control boxes and DIN rail adapters.

What are the signs of a faulty 50 amp contactor?
Technicians should look for audible humming or chattering, visible burnt contact points, or a significant voltage drop across the terminals when the coil is energized. If the compressor fails to start despite receiving a 120V signal to the coil, the contacts may be welded or pitted.

Can I use this to replace a 40 amp 3-pole contactor?
Yes, in most cases you can upgrade to a higher amperage rating like this 50 amp contactor as long as the 120V coil voltage matches. However, never downsize the amperage below the original equipment manufacturer (OEM) specifications.

Is the 120V coil compatible with 24V thermostat circuits?
No. This specific model requires a 120V control signal. If your system uses a low-voltage 24VAC transformer for the contactor coil, this unit will not engage. Always verify the coil voltage printed on the side of the existing part before replacement.

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.