AC network insulation monitor RI-R44

RS485

RI-R44 is a device that allows the insulation monitoring to earth up to 440 VAC of networks (IT systems). By applying a DC component measure signal between the insulated line and earth it’s possible to control the insulation resistance by detecting the generated leakage current. Configurable automatic or manual resetting. It has a TRIP changeover contact configurable normally de-energised or energised. The RI-R44 is also provided with a RS-485 optional interface with Modbus protocol to consent the integration in supervision systems. Description • Modular DIN-rail housing, 2 modules • Insulation monitoring of IT system up to 440 VAC • 1 green LED indicator for power supply • LCD display (Alarm or prealarm indicating events) • Configurable automatic or manual reset • TEST pushbutton • TRIP threshold setting • Output relay • Built-in RS485 interface (Modbus RTU)