Page 155 - Sace Emax 2 Manual for design engineers
P. 155
ABB | SACE Emax 2
2 - E2.2-E4.2-E6.2 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 66) has its own terminals for connection to the power circuit.
The withdrawable circuit breaker consists of a mobile part (see Figure 67) and of a fixed part (see Figure 68
for IEC and Figure 69 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 66 Figure 67
Figure 68 Figure 69
153 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Mechanical characteristics | 2 - E2.2-E4.2-E6.2 description
