Mars 61451 Definite Purpose Contactor 4 Pole 40 Fla

Product Description

The MARS 61451 is a definite purpose contactor rated for 4 poles and 40 Full Load Amps (FLA). MARS, short for Motors and Armatures Inc., is a trusted name in HVAC electrical components. This contactor is built for the switching demands of air conditioning systems, heat pumps, refrigeration equipment, and other motor-driven loads common in commercial and residential applications.

A definite purpose contactor is a type of electrically operated switch designed for specific applications rather than general industrial use. In HVAC systems, contactors control the power supply to compressors, condenser fan motors, and other high-current loads. When the thermostat or control board sends a low-voltage signal to the contactor coil, the contactor closes its contacts and allows line voltage to flow to the load. The MARS 61451 handles this job across 4 poles, making it suitable for three-phase or multi-circuit switching configurations where more than one or two poles are needed.

The 40 FLA rating means this contactor can handle up to 40 amps of continuous full load current. This capacity covers a wide range of compressor and motor sizes found in light commercial and residential HVAC equipment. HVAC technicians rely on correctly rated contactors to prevent premature contact wear, overheating, and system failures. Choosing a contactor with the right pole count and amp rating is critical for safe, reliable operation.

This unit is a direct replacement option for worn or failed contactors during service calls. It is a common stock item for HVAC supply houses and service vans. The 4-pole design and 40 FLA rating make the MARS 61451 a versatile contactor for a wide range of equipment brands and models.

• 4-pole configuration for multi-circuit or three-phase switching applications
• 40 Full Load Amp (FLA) rating supports compressors and motors in HVAC and refrigeration systems
• Definite purpose design built specifically for air conditioning, heat pump, and refrigeration load switching

Product Highlights

The MARS 61451 definite purpose contactor delivers reliable 4-pole, 40 FLA switching performance for HVAC compressors and motor loads. It is a proven replacement part trusted by HVAC technicians for residential and light commercial service work.

Product Information

Standard Information

• Brand: MARS
• Manufacturer Part Number: 61451

Technical Specifications

• Pole Count: 4 Pole
• Full Load Amps (FLA): 40 FLA
• Contactor Type: Definite Purpose
• Application: HVAC, Refrigeration, Air Conditioning, Heat Pump