The Carlo Gavazzi DPC01 monitoring relay operates on three-phase and three-phase + neutral systems, and operates with three or four wires. The DPC01 monitors phase loss and phase sequence, overvoltage and undervoltage, voltage asymmetry and tolerance. The relay operates when all the phases are present, the phase sequence is correct and the input voltage levels are within set limits. Alarm delay is configurable by front dials, and each of the two alarms (under/overvoltage and asymmetry/tolerance) can be set individually. Power supply is provided by the monitored mains.

Applications: Elevators and escalators, HVAC and refrigeration, water and wastewater, aviation, maritime and railroad, food and beverage, plastics and rubber, packaging and wrapping, material handling and conveyors.