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It features 28 AC inputs and 20 relay outputs
When operating on a 8kHz carrier
75 kW Output Power: Efficient motor control for small machinery and automated systems
this terminal end fitting ensures a dependable and efficient electrical connection
ST9120C4057 | Honeywell Furnace Control Circuit Board tier_B_31_60 It features 28 AC inputsDescription The Honeywell ST9120C4057 is a furnace fan control circuit board designed for residential HVAC systems. It serves as the central control unit, managing essential functions such as blower operation, ignition sequencing, and safety monitoring by coordinating signals from various sensors and switches. Technical Specifications Condition New Never Used Surplus Brand Honeywell Category HVAC Components Part Number ST9120C4057 Subcategory Furnace
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