
The overload relay combines current and voltage protection with power
monitoring and diagnostic capabilities. Communicating status and
diagnostic information using DeviceNet communications with Rockwell
Software RSEnergyMetrix software, the overload relay identifies motors
contributing to monthly peak demand and power factor line items on
utility bills. In addition, the overload relay is equipped with Allen
Bradley DeviceLogix Intelligent Component Technology, which integrates
logic-solving capability into the overload relay. The relay also helps
protect against voltage issues such as under voltage, voltage unbalance, phase loss, frequency and phase rotation before the contactor coil is energized.