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4.
Installation
4.1. Installation room
Install the circuit-breaker in a dry, dust-free, non-corrosive room,
and in such a way that it is not subject to shocks or vibrations.
Where this is not possible, install it inside a switchboard with
a suitable degree of protection.
For the preparation of the installation room, please refer to the
"Overall dimensions" paragraph, which gives information on
the following points:
- minimum installation volumes of the circuit-breakers and
derived versions
- distances to be respected for circuit-breakers in compartments
- overall dimensions of the circuit-breakers
- fi xing drillings
- compartment door drillings.
The installation, commissioning and any ordinary and extraor-
dinary maintenance have to be done by skilled personnel, with
a detailed knowledge of the apparatus.
WARNING: The installation, commissioning and
any ordinary and extraordinary maintenance of the
circuit-breaker and accessories must be performed
by skilled personnel, with a detailed knowledge of the equipment.
WARNING ELECTRICAL SHOCK HAZARD:
Disconnect and lock and tag out all electrical power feeds to avoid any potential shock hazard when you are
assembling, installing maintaining or removing the circuit breaker from service. Some operations must be per-
formed when the circuit-breaker is energized. In this case, reasonable care and compliance with all safe working
practices is required.
4.2. Installation of the fi xed circuit-breaker
Fix the circuit-breaker to a horizontal surface using the screws (M10 x 12 min.).
4.3. Installation of the fi xed part of the withdrawable circuit-breaker
4.3.1.
Preparation of the fi xed part
Assembly of the anti-racking-in lock
Before installing the fi xed part, it is necessary to check the presence of the anti-racking-in lock for circuit-breakers with different
electrical characteristics from those of the fi xed part. If the anti-racking-in lock has been supplied separately, proceed to as-
semble it as follows.
- On the self-adhesive plate (4), fi nd the assembly position of the stop bolts in relation to the circuit-breaker which has to be
housed in the fi xed part.
- Insert the hexagonal-head screws (1) in the holes found in the previous item as shown in the fi gure.
- Fix the screws with the washers (2) and the hexagonal stops (3).
Make sure that the anti-racking-in lock corresponding to the one installed on the fi xed part is present on the circuit-breaker
(moving part).
- Anti-racking-in plate on the moving part (5).
Example for E1B 08 according to the nameplate diagram
1
2
3
4
3
Fig. 9
Model
L6555
E3N-S
E2B-N-L
E1B-N
2
1
Fig.8
5
Fig. 10
Apparatus
Doc. No
1SDH000460R0002
E3H-V
E2S-H
Scale
Emax
Page No
7/74
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