Description - ABB Sace Emax 2 Installation, Operation And Maintenance Instructions

3 - 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 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
Management operations
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3 - Description