Inserting A Unit - Eaton Power Xpert UX 12 User Manual

System operation
The following three steps are always followed when
inserting or withdrawing a withdrawable unit.
Insert/Removed position
Fig. 4-4
4.2.2

Inserting a unit

Inserting the unit to the Test position.
Proceed as follows:
1. Open the door of the circuit breaker panel.
2. Check that there are no padlocks fitted on the
shutters; remove them if fitted.
3. If the panel has an earthing switch, make sure it is in
the required position (Open during normal operation,
Closed during maintenance or testing).
4. Remove all locks in accordance with any specific
operating instructions.
5. Check that the unit is Open.
6. Move the unit on its trolley to the front of the panel
compartment.
7. Move the trolley up to the unit compartment; align
the interlocking tabs with the holes in the front panel
and secure the trolley to the front of the panel using
the knob (1).
8. If necessary, adjust the height of the trolley to align
with the insertion plate in the panel with the aid of the
adjusting wheels (3).
9. Unlock the unit from the trolley by releasing the
shoot bolt handles (2) at the front of the unit and
push the unit into the panel until it stops. The unit is
now mechanically coupled to the compartment.
10. Mount the secondary plug. (See instructions on the
front of the plug). The unit is now in the test position
11. Unlock the trolley by turning unlock knob (1) to the
centre of the panel and remove the trolley.
42
Power Xpert
Test position
®
UX with W-VACi circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
Service position
1
Fig. 4-5 Inserting a circuit breaker or other withdrawable
functional unit
1. Unlock knob
2. Shoot bolt handle
3. Adjusting wheel
3
2