July 11, 2013 – Eaton’s PM3 power monitoring and metering module monitors the power of branch and main circuit applications. Designed for Eaton series G and series C molded case circuit breakers, the PM3 with Modbus RTU measures current and voltage, calculates power and energy usage, and provides breaker status. As a UL-listed, add-on communications device, the PM3 module can be mounted to the load side of three-pole series G, JG and LG breaker frames, as well as series C, FD and KD breaker frames.