| Technical characteristics |
| Application |
Residual current protection relay |
| Supply voltage |
110-230 VAC 50/60Hz
24/48 VAC/DC (optional) |
| Power consumption |
6 VA |
| Display type |
Backlight LCD (red TRIP)
Backlight LCD (yellow ALARM) |
| Type of measurement |
True RMS
Earth fault current internal measurement |
| Toroidal channel inputs |
2 |
| Residual earth-leakage adjustment |
0,030...5 A |
| Residual earth-leakage time delay adjustment |
20...500 ms |
| Alarm threshold setting |
50...90% |
| Earth-leakage protection class |
Typo A super immunized |
| Filter |
3rd harmonic filter selectable |
| Test function |
Local
Remote test |
| Output relays |
2 independent (latch relay)
5 A (240 VAC)
Configurable normally de-energised or energised |
| MEMORY function |
Non-volatile memory retains the trip status of the relay. If tripped, and the supply voltage disappeared, the ELR-51AS will remain tripped at power on, with the trip relay energized and the TRIP LED on, until reset. |
| Display indications |
Green LED (power ON)
Red LED (TRIP)
LED OK (System healthy) |
| Communication port |
RS485 (optional) |
| Communication protocol |
Modbus a 4,8...115,2 kbauds |
| Mounting mode |
DIN rail 3 modules |
| Standards |
2014/35/UE
2014/30/UE
2015/863/UE
AS/NZS 2081:2011
EN 61326-1:2013-01
EN 61326-2-1:2013-01
EN 61326-2-2:2013-01
EN 61326-2-3:2013-01
EN 61326-2-4:2013-01
EN 61326-2-5:2013-01
EN 60947-2:2017-10 (Annex M)
EN 61543/A2:2006-02
CEI EN 61543/A11
CEI EN 61543/A12 |
| Weight |
200g |
