The RI-ELR60 is an Earth Leakage relay with adjustable trip level and trip delay. The trip level may be selected between 30mA and 30A, and the trip delay between 0 and 9 seconds.
Note: When the trip level is set to 30mA, trip time is instantaneous.
Designed to detect low level leakage currents and to operate a contact if the leakage current exceeds the selected trip level. All phase conductors of the circuit being monitored are passed through the aperture of an RI-CBCT core balance transformer. The transformer output is connected to the relay which monitors the proportional leakage current.
An LED chain on the front of the relay provides visual indication of leakage current, along with power status and trip indication.
A single change over contact is provided for alarm indication.
Parameters
Adjustable trip level : 30mA…30A
Adjustable time delay : 0…30 seconds
Test/reset facility:-
1. Front panel push button
2. Remote through normally open push button contact
3. By removal and re-applying auxiliary supply
Note: The relay will remain in trip state until reset as above.
Standard Type A to IEC/EN60947-2 Annex M.
Response time:-
<30mS if leakage current ≥ 5 x set point
<50mS if leakage current ≥ 1 x set point
