Removing The Protection Relay; Sending Protection Relay For Repair; Exchanging Protection Relay - ABB RELION 620 Series Installation Manual

Removing, repairing and exchanging
6.3

Removing the protection relay

1.
2.
3.
4.
5.
6.4

Sending protection relay for repair

• In case of product problems, contact the nearest ABB office or representative for
consultation and instructions.
6.5

Exchanging protection relay

• To exchange the protection relay with another identical unit, remove the
protection relay and install the new one.
60
Turn off the power.
Detach the plug-in unit from the case.
Disconnect the wiring.
Loosen the four M5 fixing screws.
Figure 49: Loosening the M5 screws
Detach the case from the panel cut-out.
1MRS757641 G
620 series
Installation Manual