ABB Sace Emax UL Listed, Инструкции по установке, обслуживанию и техническому обслуживанию

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L2275
Emax UL
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RH0109002
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1.4 Moving part construction characteristics
1 Supporting structure made of steel sheet
2 Current transformer for trip unit
3 Terminal support insulating box
4 Horizontal rear terminals
5a Main fixed contact plates
5b Fixed arcing contact plates
6a Main moving contact plates
6b Moving arcing contact plates
7 Arcing chamber
Fixed power circuit breaker
1.3 Power circuit breaker rating plate data
Selective power circuit breaker
1. Description
1.1 General characteristics
The SACE Emax series of power circuit breakers are made up of a steel sheet structure which houses the operating mechanism, the poles and
the auxiliary parts. Each pole, insulated from the others, contains the interrupting parts and the current transformer of the corresponding phase.
The structure of the poles differs according to whether the power circuit breaker is selective or current limiting.
The fixed version power circuit breaker has its own terminals for connection to the power circuit. In the draw out version, the power circuit breaker
makes up the moving part of the apparatus which is completed with a cradle fitted with the terminals for connection to the power circuit of the
installation. Coupling between moving part and cradle takes place by means of special pliers mounted in the cradle.
1 PR111-A, PR112-A or
PR113-A electronic trip unit
2 Marchio di fabbrica
3 Operating and control parts
of the operating mechanism
and trip unit tripped signals
4 Rating plate
8 Terminal box for the fixed version – Sliding contacts for the draw out version
9 Trip unit
10 Power circuit breaker closing and opening operating mechanism
11 Closing springs
12 Spring charging geared motor (on request)
13 Lever for manually charging the closing springs
14 Racking-out device (only for draw out power circuit breaker)
15 Service trip units (closing coil, shunt trip, undervoltage), on request
1.2 External front view of the power circuit breaker
Courtesy of NationalSwitchgear.com