Description
This is a Brand OEM Honeywell Multi-Mount Control Transformer. It has a primary voltage of 120 volts with a secondary of 24 and is rated at 40VA. It replaces the old part numbers listed below.
Function:
Transformers are devices used in electrical circuits to change the voltage of electricity flowing in the circuit. Transformers can be used either to increase the voltage (called "step up") or decrease the voltage ("step down"). Transformers found in furnaces are "step down" transformers and usually convert 120-240 volt to 24 volt.
Replaces Old Part #s:
4B420BL 4B420EL 4B420L
Repair Difficulty Level:
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