B2342
Emax VF
23/66
Doc. No
Model
Apparatus
Scale
Page No
1SDH000909R0001
8.4.3. Connections between the circuit-breaker and the control panel
- Use brushes and try cloths to remove dust or dirt on the in-
sulating parts (if necessary, use non-corrosive detergent - For
excessive deposits, a dilutant such as Henkel 273471 or the
equivalent can be used).
- Check that there are no traces of overheating on the terminals.
The problem is detected by discoloration of the parts in contact;
the contact points are normally silver in colour.
- Check the tightness of the bolts fixing the connections to the
terminals (M12 - 70Nm).
WARNING: before working on fixed circuit-break-
ers or on fixed part, disconnect the supply to the
power circuit and to the auxiliary circuits and earth
the terminals in a visible manner both on the sup-
ply and on the load side.
-
Check that the connecting screws of the cables of the terminal boards are tight (0.7 Nm).
Fig. 40
8.4.4. Dismantling the tab, cap and arcing chambers
- Remove the flange (1) of the release, turning the screws (2) as shown in the figures
- Remove the front escutcheon plate (3) by removing the four screws (4)
- Remove the arcing chambers (5) by removing the screws (6).
Fig. 41
SAC
E PR
122/V
F
1
2
3
4
5
6
Fig. 39
