MARS 61461 Contactor

The MARS 61461 Definite Purpose Contactor is a professional-grade solution for demanding HVACR applications, featuring a 3-pole configuration rated for 50 Amps FLA (Inductive) and 63 Amps (Resistive). Operating with a 120V coil, this contactor is engineered with silver cadmium oxide contacts to ensure superior electrical conductivity and arc resistance when switching heavy inductive loads in commercial refrigeration, air conditioning, and heating systems. The enclosed body design significantly reduces noise and protects internal components from dust and debris, prolonging service life in harsh environments. For quick and secure field wiring, it utilizes large arch window box lugs alongside dual quick-connect terminals. This MARS 780 series component is a direct replacement for the Furnas 42DF35AF and is designed for footprint compatibility with standard industrial mounting patterns. Its Class F coil insulation supports high-temperature operation, making it a reliable choice for 25 HP power ratings in multi-phase equipment.

• Oversized 'Arch Window' box lugs and dual quick-connect terminals simplify high-gauge wire termination.
• Silver cadmium oxide contacts are specifically designed to minimize pitting and withstand repetitive inductive switching.
• Enclosed body construction provides quieter operation and shields the mechanical assembly from contamination.
• Direct cross-reference for Furnas 42DF35AF and compatible with MARS 780 and Furnas auxiliary switches.
• Class F insulation and a 600V rating provide robust protection against electrical breakdown in high-heat settings.

Is the MARS 61461 compatible with auxiliary switches?
Yes, this 50 Amp contactor features side attachment rails designed to accept MARS 780 or Furnas auxiliary switches for additional control logic.

Can I use this contactor for single-phase or three-phase loads?
While this is a 3-pole contactor typically used for three-phase equipment, it can be utilized in single-phase applications where multiple legs of power must be broken simultaneously.

What is the difference between FLA and resistive ratings for this part?
The 50A FLA rating applies to inductive loads like compressors and motors, while the 63A rating is for resistive loads like electric heat strips.

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.