Earth-leakage protection relay ELR-3A

currentACDC

ELR-3A External CT. 2 operation threshold. Adjustable tripping and delay time. Residual current protection relay with external CT. 2 operation threshold. Adjustable tripping and delay time. Introduction Range ELR Product name ELR-3A Product type Residual current protection relay Current sensors compatibility CT-1 earth leakage current sensor Technical characteristics Application Residual current protection relay Supply voltage 230 VAC 50/60Hz 110 VCA 50/60Hz 24/48 VCA (optional) 24-110 VCC (optional) Power consumption 3 VA Display type Backlight LCD (red TRIP) Backlight LCD (yellow ALARM) Type of measurement True RMS Earth fault current internal measurement Residual earth-leakage adjustment type 0,030...30 A Residual earth-leakage time delay adjustment type 0,02...10 s Alarm advance set-point 50...80% Earth-leakage protection class Typo A Test function Local Remote test Output relays 2 changeovers (TRIP, ALARM) 5 A (240 VAC) Configurable normally de-energised or energised Display indications Green LED (power ON) Red LED (TRIP) Red LED (Missing CT connection) Mounting mode DIN rail 3 modules Standards IEC/EN 61010 IEC/EN 61000-6-2EN IEC/EN 61000-6-3 IEC/TR 60755 CEI EN 60947-2 Annex M Weight 260g Environment IP degree of protection IP41 front IP20 terminals Relative humidity 5...90% Operating temperature -10...+60 °C Storage temperature -20...+80 °C Options Accessory Flush mount 72x72 mm adapter