AC network insulation monitor Ri-R44-V

RS485

RI-R44-V Insulation monitoring up to 440 VAC. LCD. RS485 available. Insulation monitoring devices for fault detection network up to 24...440 VAC with digital display, RS485 available, reset auto or manual, trip relay standard or fail-safe Introduction Range RI Product name RI-R44-V Product type Insulation monitoring device Application Production plant protection Motor protection Transformation lines protection Earthing system IT Technical characteristics Network voltage 24...440 VAC at 50...60 Hz 24...1000 VAC at 50...60 Hz (with external adapter) Auxiliary supply 230 VAC 50/60 Hz 110 VAC 50/60 Hz (optional) 18...48 VAC 50/60 Hz - 20...60 VDC (optional) Power consumption 2 VA Type of measurement Network insulation resistance Intervention threshold Prealarm: 1...999 kOhm Trip: 1...999 kOhm Response time < 1 s Trip delay selectable 0...100000 s Measurement current 0,015 mA (max) Measurement voltage 13 VDC Internal impedance 350 kOhm Reset function Auto Manual Test function Local Output relay 1 changeover (TRIP) 5 A (240 VAC) Standard or fail-safe selectable Local signalling Green LED (power ON) Red LED (TRIP) Yellow LED (ALARM) Display type LCD backlight (red TRIP) LCD backlight (yellow ALARM) Mounting mode DIN rail 2 modules Standards CEI-EN 61010-1 CEI-EN 61557-8 CEI-EN 61326-1 Weight 200g Environment IP degree of protection Front IP40 with cover IP20 terminals Relative humidity 5...90% Operating temperature -10...+60 °C Storage temperature -20...+70 °C Options Communication port RS485 Modbus