Description
This is a NEW Honeywell Switching control transformer Relay
Function:
Relays are switches that open and close circuits electrically. In most HVAC equipment a low voltage coil relay (24 vac) is energized in order to open or close a higher voltage (usually 120-240) circuit.
Replaces Old Part #s:
RA89AY9KOSR RA89X1003 RA89X-1003
Repair Difficulty Level:
Partial List of Units that Use This Item:
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