ABB RELION REX640 Installation Manual page 58

Section 4
Mounting
50
2
3
3
2
GUID-52F79904-C482-4CC5-BFC5-047479232344 V1 EN
Figure 41: Mounting grounding bar
1 Module
2 Grounding bar
3 M3 screws and washers
4 Edge with chamfer towards the module's collar screw
3. Tighten the M3 screws to 0.8 Nm ±5%.
4. Install the module back to the same slot in the protection relay.
1
2
1MRS759115 A
3
Installation Manual
4
REX640