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Wiktionary(0.00 / 0 votes)Rate this definition: switchgear(Noun) A switching/ interrupting device used in connection with generation, transmission, distribution and conversion of electric power for controling, metering protecting and regulating devices. 52G breaker is the unit main power output breaker.
switchboard. n. 1. (Telecommunications) an installation in a telephone exchange, office, hotel, etc, at which the interconnection of telephone lines is manually controlled. 2. (Electrical Engineering) an assembly of switchgear for the control of power supplies in an installation or building.