ABB | SACE Emax 2
Management operations | 3 - Description
13 | © 2019 ABB | 1SDH001000R0002 - ECN000109166 - Rev. D
3 - Description
Description of circuit-breaker
The Emax E2.2-E4.2-E6.2 circuit-breakers consist of a steel structure in which the operating mechanism, the
poles and the auxiliary parts are located.
Each pole, isolated from the others, contains the breaking parts and the current transformer of its own phase.
The structure of the poles 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 18) has its own terminals for connection to the power circuit.
The withdrawable circuit breaker consists of a mobile part (see Figure 19) and of a fixed part (see Figure 20
for IEC and Figure 21 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 18
Figure 19
Figure 20
Figure 21
