ELECTRICAL SWITCHING DEVICE WITH COVER INTERLOCK

摘要

Electrical switches and circuit breakers with contacts and operating mechanism enclosed in an insulating housing having an insulating cover and an elongated operating handle extending through a slot in the cover have an enlarged terminal portion of the operating handle which is wider than the slot to prevent removal of the cover except in positions of the handle at which the electrical contacts are open and the slot is wider than the terminal portion of the handle. This is only the OFF position of the switch or breaker.