This wiring diagram shows 120 V coming from L1 of a circuit breaker, through a switch, powering a boiler control and returning through L2, back to the neutral bar of the circuit breaker box. This is ...

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Verified Supplier - Changzhou Trustec Company Limited Bussiness Type: Manufacturer,Trading Company Scale: 301 - 500 People Country/Region: China (Mainland)/Asia Established: YDK160 375 4A 220 230V ...