MARS 61446 Contactor

The MARS 61446 Definite Purpose Contactor is a heavy-duty 3-pole contactor engineered for demanding HVACR applications, including air conditioning, refrigeration, and electric heating systems. Rated for 40 FLA Inductive and 50 Amps Resistive, this component features a 120V coil and class F insulation, ensuring reliable performance in commercial and industrial control circuits. Built with an enclosed body design, it minimizes dust and dirt intrusion to maintain contact integrity and provides a quieter running cycle compared to open-frame alternatives. The MARS 61446 is equipped with box lug terminals and dual quick-connect coil terminals, allowing for flexible wiring and straightforward HVAC contactor replacement in the field. Its high-performance silver cadmium oxide contacts are designed to maximize conductivity and extend service life under high inductive load switching. This 40 amp 3 pole contactor is footprint-compatible with industry standards, making it a drop-in solution for contractors focused on efficiency and system uptime.

• Enhanced Durability: The enclosed thermoplastic housing protects internal contacts from contamination, reducing failure points in harsh environments.
• Versatile Wiring: Large arch window box lug terminals and multiple quick-connect points simplify installation for high-power electrical loads.
• Cooler Operation: High-performance copper and brass conductors maximize current-carrying capability to reduce heat buildup during continuous duty.
• Field Adaptability: Footprint compatibility allows it to replace various OEM models, such as the 42CF35AF, without requiring mounting modifications.

What is the difference between inductive and resistive ratings for this 3-pole contactor?
The MARS 61446 is rated at 40 Amps Inductive (FLA) for motor and compressor loads and 50 Amps Resistive (LRA) for heating elements. Always size based on the specific load type of your HVAC system.

Can I add auxiliary switches to the MARS 61446?
Yes, this model features side attachment rails designed to accept MARS 780 and Furnas auxiliary switches for additional control circuit requirements.

Is the coil on this 120V 40A contactor replaceable?
Yes, the removable coil design allows for field replacement of the 120V coil without needing to replace the entire contactor assembly, saving time and component costs.

This item is not eligible for free shipping.

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.