Electricity: circuit makers and breakers – Electric switch details – Cases and bases
A molded plastic cover fastens to the front of a disconnect switch and encloses elements of each switch pole. The cover includes a cap section which is hinged to swing downward and allow access to the input line terminals of the switch, and it includes a panel section which is hinged to swing downward and allow access to the switch contacts and modular arc chutes.
patent: 3243564 (1966-03-01), Burch
patent: 3369099 (1968-02-01), Norden et al.
patent: 3412225 (1968-11-01), Rogers et al.
Nelson Grant W.
Zaffrann Albert A.
Hohauser Herman J.
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