Abstract:
A motor controller that is intended to be used in a branch circuit to an electric motor and includes an enclosed manually operated overload responsive switch. The enclosure for the switch is provided with a removable cover and a means which are positioned by the cover relative to the overload responsive units of the switch to reduce the length of the arcs generated within the enclosure and the temperature of the hot gases exiting from the enclosure when the current through the branch circuit has a magnitude sufficient to destroy current responsive units.
Abstract:
A manually operated switch having a toggle lever actuating mechanism included in a housing part which may be readily removed from a base carrying the stationary contacts of the switch to permit inspection of the current carrying contacts of the switch. The switch includes a slider which moves to an activated position when the housing part is removed from the base. The slider, when in the activated position, causes the levers of the toggle mechanism to move and be maintained in an OFF operating position so that the toggle mechanism must be reset after the housing is remounted on the base before the levers of the toggle mechanism can be moved to the ON position.