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The AO SMITH 100110093 is a 3 pole contactor rated for 50 resistive amps at 120 volts, designed for use in heating system applications. A contactor is an electrically controlled switching device that opens and closes high-current circuits on command from a low-voltage control signal. This unit provides three switched poles, making it suitable for controlling multi-phase or multi-leg loads in heating equipment. It is installed and serviced by licensed HVAC technicians and electricians working on commercial or residential heating systems where reliable load switching is required.
This contactor is intended for heating applications where a robust, multi-pole switching solution is needed. The 3 pole configuration allows simultaneous switching of multiple circuit legs, which is common in electric heating equipment, rooftop units, and similar systems. Its 50 amp resistive rating makes it appropriate for moderate to heavy load switching in typical heating installations.
Designed as an OEM-style replacement contactor for heating equipment requiring a 3 pole, 50 amp, 120 volt switching device.
Installation should be performed by a licensed HVAC technician or electrician in accordance with the NEC and applicable local codes. Disconnect and lock out all power to the equipment before removing the existing contactor or installing this unit. Verify coil voltage and pole configuration match system requirements before energizing. Do not exceed the rated amperage or apply to loads outside the specified application.
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