Abstract:
An automatic transfer switch includes a first switching apparatus having a first state to electrically connect at least one load to a primary power source and a second state to electrically connect the at least one load to a secondary power source; a sensor structured to sense information related to the power draw of the at least one load; and a control unit structured to determine the power draw of a selected one of the loads based on the output of the sensor, to compare the power draw of the selected load to a power capacity of the secondary power source, to allow the selected load to turn on if the power capacity of the secondary power source is at least greater than the power draw of the selected load, and to otherwise prevent the selected load from turning on.
Abstract:
An interruption apparatus includes a first portion having a trip unit and a second portion having a detection system. The first and second portions are individually selectable based upon the particular application and are then movable from a detached configuration to a connected configuration. The first and second portions are selected from a plurality of first portions and second portions having different specifications. A desired first portion having a first interruption rating and a desired second portion having detection capabilities that are suited to the particular application can be assembled together to provide a field-configurable interruption apparatus.