Abstract: A passive infrared (PIR) wall switch is operable in a two-wire circuit to control power to a load. The PIR wall switch can include one or more PIR sensors with a low current two stage amplifier-filter. The PIR sensor(s) monitor infrared (IR) radiation. The amplifier can provide a pulse signal when an IR radiation level has changed. Power for control circuitry of the PIR switch may be derived from a ground leakage type power supply, which can supply phase line wire leakage current to ground of less than 0.5 milliampere.

Abstract: A ground fault circuit interrupter device having a feedthrough capacitor for substantially reducing interference from radio frequency signals such as those emitted from cell phones. The ground fault circuit interrupter device includes a printed circuit board having a system ground terminal and a detection terminal for receiving a fault detection signal. A chip is provided having a ground pin connected to the system ground terminal and an input pin for receiving the fault detection signal. The feedthrough capacitor has a through conductor connected between the input pin and the detection terminal and a capacitor coupled between the through conductor and the system ground terminal.

Abstract: A modular toggle mechanism assembly has a housing assembly, a toggle handle pivotally mounted in the housing assembly and movable between a first position and a second position, biasing means for selectively biasing the toggle handle in the first position or the second position, and an actuator arm connected to the toggle handle and capable of selectively actuating an external switching device as a function of the position of the toggle handle. The modular toggle assembly also includes an external switching device in selective association with the toggle handle. The housing assembly includes an upper housing and a lower housing configured to be secured together, wherein a portion of the toggle handle extends from an opening in the upper housing for user operation of the handle.