Copeland 912-3120-01 Contactor

The Copeland 912-3120-01 Contactor is a heavy-duty 3-pole definite purpose contactor engineered for high-demand HVACR applications. Designed with a 120V AC coil and a 120-amp full load amperage (FLA) rating, this component is built to manage the high inrush currents typical of large commercial compressors and condenser fan motors. This model includes an integrated auxiliary switch, providing additional contact logic for control circuits or status monitoring without requiring separate field-installed accessories. The silver cadmium oxide contacts are designed for superior conductivity and arc resistance, ensuring reliable switching under load. Built to UL and CSA standards, this 120A magnetic contactor serves as a direct OEM replacement for failed power switching components in packaged units and chillers. Its robust frame and terminal design facilitate secure field wiring, maintaining mechanical integrity even in high-vibration environments commonly found in industrial mechanical rooms.

• High Ampacity Rating: Rated for 120 FLA to handle demanding 3-phase commercial motor loads.
• Standardized Control Voltage: Features a 120V coil for seamless integration with standard building automation and thermostat controls.
• Auxiliary Contact Included: Pre-installed auxiliary set allows for secondary circuit signaling or interlocking.
• Durable Construction: Heavy-duty lug terminals ensure low-resistance connections for heavy-gauge wiring.

Commonly Asked Questions

What is the purpose of the auxiliary contact on the 912-3120-01?
The auxiliary contact provides a secondary set of low-power contacts that move in sync with the main poles, typically used for feedback to a controller or to energize an indicator light.

Can this contactor replace a 2-pole 120A model?
Yes, as a 3-pole contactor, it can be used in 2-pole applications by utilizing two of the three main poles, provided the coil voltage and FLA ratings match the original specifications.

What wire size is compatible with these terminals?
This high-amp contactor typically utilizes box lugs designed for large-diameter copper conductors; always verify the torque specs on the side of the unit to ensure a proper electrical connection.

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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.