AIRI SB310 PW-30177 Relay Control Board
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Relay Control Board
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Designed to house and manage relays for switching high-power circuits in automotive, HVAC, or industrial systems.
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May include terminals for wiring, LED indicators, and a socket for interchangeable relays.
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Power Distribution Board
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If “PW” stands for Power Wiring, it could be part of a power distribution or fuse box
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Sold As Is – unable to test, no accessories or power source



