ABB CM-UFD.M33.M MULTIFUNCTION GRID PROTECTION RELAY WITH MODBUS RTU

The Multifunctional Grid Protection Relay is a voltage-based device that comes with MODBUS RTU interfaces. It supports various ANSI codes, including 59, 27, 81H, 81L, 78, and 81R. This relay has a measuring range of L-L: 0-550 V AC and L-N: 0-317 V AC. It is capable of monitoring voltage and frequency in both single-phase and three-phase mains, supporting 2-wire, 3-wire, or 4-wire AC systems.