Abstract: A faulted circuit indicator (FCI) device for installation on a power line includes a housing, a laminate structure fastened to the housing and configured to receive the power line, and a clamp mechanism pivotally fastened to the housing and configured to secure the housing to the power line. The clamp mechanism includes a pair of opposing clamp arms each having a curved configuration. The curved configuration of the clamp arms maintains the power line in a centered relationship within the laminate structure when the clamp arms are engaged on the power line over a range of power line diameters.

Abstract: A faulted circuit indicator (FCI) device for installation on a power line includes a housing, a laminate structure fastened to the housing and configured to receive the power line, and a clamp mechanism pivotally fastened to the housing and configured to secure the housing to the power line. The clamp mechanism includes a pair of opposing clamp arms each having a curved configuration. The curved configuration of the clamp arms maintains the power line in a centered relationship within the laminate structure when the clamp arms are engaged on the power line over a range of power line diameters.

Abstract: A thermostat includes a temperature sensitive element that is responsive to temperature variations to selectively move between at least a first position and a second position. The transfer pin is movable with the temperature sensitive element and is configured, upon movement of the temperature sensitive element from the first position to the second position, to supply a force to a switch that moves the switch from a first switch position to a second switch position. A spring is coupled to the switch and is configured to selectively supply at least a first retainer force to the switch that, when the switch is in the second switch position, retains the switch in the second switch position when the temperature sensitive element moves from the second position back to the first position.

Abstract: A system includes a control switch and a control module. The control switch is configured to drive current through an electrical load in a closed state, and disconnect the electrical load from a power supply in an open state. The control module is configured to connect to a thermostat switch that operates in one of an open state or a closed state based on a temperature of the thermostat switch. The control module is further configured to control a state of the control switch based on a state of the thermostat switch and detect a fault in the control switch based on the state of the thermostat switch and a voltage across the control switch.