Description; Description Of Circuit-Breaker - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User

4 - Description

Description of circuit-breaker Emax E1.2 circuit-breakers consist of a structure containing the poles, the operating mechanism and the
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auxiliary parts. Each pole, enclosed in a plastic box, consists of a breaking part and a current transformer.
The structure of the breaking part differs between selective or current-limiting circuit-breaker.
The circuit-breaker is available in two types:
• fixed version
• withdrawable
The circuit-breaker in fixed version (see Figure 10) has its own terminals for connection to the power circuit.
The withdrawable circuit breaker consists of a mobile part (see Figure 11 for IEC and Figure 12 for UL) and
of a fixed part (see Figure 13 for IEC and Figure 14 for UL) for connection through its own terminals to the
power circuit.
The coupling between the mobile part and the fixed part is via disconnection contacts mounted on the fixed
part.
Figure 10
Figure 12
Figure 14
Figure 11
Figure 13
Emax E1.2 circuit-breakers | 4 - Description
ABB | SACE Emax 2