Sealing Plug-In Unit - ABB Relion 611 Series Installation Manual

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Section 4

Mounting

4.2.3

GUID-7E1547ED-000F-42BA-821A-F5D39F5BB708 V1 EN

Figure 4:

Installing a plug-in unit into the case

Let the handle swing down about 45 degrees. At the same time, push the plug-

in unit into the case as far as it goes.

Plug-in unit stops at about 7 mm distance from the case.

Turn down the handle to push the plug-in unit into its final position in the case.

The handle must be locked or sealed to secure the mechanical

performance under any conditions caused by vibration,

pressure, shock or bump, seismic activity or other equivalent

circumstances.

Sealing plug-in unit

The front panel of the protection relay has an integrated sealing screw. By default the

screw is screwed all the way in and is not used when installing or detaching the plug-

in unit.

Open the sealing screw about nine turns.

Thread a sealing wire through the holes in the sealing screw and the handle.

1MRS757452 D

611 series

Installation Manual

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