ABB Oy REJ525 Overcurrent and Earth-Fault Relay REJ525B415BAA Rev. C 1MRS091415

·        The REJ 525 is provided with two serial communication ports: an optical PC-connection on the front panel and an RS-485 connection on the rear panel.

·        The D9S-type RS-485 connector is used to connect the relay to the distribution automation system. This connection enables the use of either the SPA bus communication protocol or the IEC 60870-5-103 communication protocol. The fibre-optic interface module RER 103 is used to connect the relay to the fibre-optic communication bus.

·        Relay power start-up time, typical:-  300 ms

·        Rated frequency:- 50/60 Hz ±5 Hz

·        Operating range :- 18...265 V DC

·        Rated voltage:- 24/48/60/110/220 V DC

·        Current drain:-  ~ 2...25 mA

·        Power consumption:-  < 0.8 W

·        Rated voltage :- 250 V AC/DC

·        Continuous carry :- 5 A

·        Minimum contact load:-  100 mA at 24 V AC/DC

·        Front side:-  IP 54 (flush-mounted)

·        Rear side, connection terminals:-  IP 20

·        Specified service temperature range:-  -10...+55 °C

·        Transport and storage temperature range :-  -40...+70 °C according to the IEC 60068-2-48

·        Isolation resistance:-  > 100 MΩ, 500 V DC

·        Uaux rated :- Ur = 110/120/220/240 V ac , Ur = 48/60/110/125/220 V dc

·        Uaux variation :- 80...265 V ac , 38...265 V dc

·        Relay power start-up time, typical :- 300 ms

·        Burden of auxiliary voltage under quiescent/operating condition :- ~ 5 W/~10 W