1, the general switch of the household distribution box can generally choose double-pole 32-63A small air switch or isolation switch. air conditioning circuits generally choose. 1. ② The empty circuit breaker, wiring wires, wiring ties, etc. Neutral line, Earth line and live line should be set up separately in. tions for supplying lines, power transformers and ring networks. insulated isolators, suitable for use in metal-enclosed switchboards (rotary version) and for wall-mounting (hinged version). AR and AS type rotary isolators. Commonly shortened to ACB, this type of circuit breaker uses air at atmospheric pressure as its arc-extinguishing. This publication was prepared under the auspices of ASHRAE Technical Committee 5. 2018 ASHRAE 1791 Tullie Circle, NE Atlanta, GA 30329 www.
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