Description
Overview
The Mars 12821 is a 240-volt holding-type (HT) coil engineered for use in contactors and motor starters across commercial and residential HVAC systems. Drawing just 10.1 watts, this coil provides efficient, consistent electromagnetic holding force to keep contactors securely closed during operation — reducing heat buildup and extending the service life of the overall switching assembly.
Key Features
- 240V AC operating voltage for compatibility with standard single-phase and three-phase HVAC equipment
- 10.1-watt power draw for energy-efficient holding performance
- Holding-type (HT) coil design maintains contactor engagement with minimal power consumption
- Engineered as a direct replacement coil for compatible Mars contactor and starter assemblies
- Compact construction for easy drop-in installation in existing contactor frames
- Durable coil winding built to withstand the thermal and electrical demands of HVAC applications
Specifications
- SKU: 12821
- Brand: Mars
- Voltage: 240V AC
- Coil Type: HT (Holding Type)
- Wattage: 10.1 Watts
Application
Ideal for HVAC technicians performing contactor and starter maintenance or repair. The Mars 12821 coil is suited for use in air conditioning, heat pump, and commercial refrigeration systems where reliable 240V contactor operation is critical. Replacing a worn or failed coil with the correct Mars replacement helps restore full contactor function without the cost of a complete assembly replacement.
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