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ABB | SACE Emax 2

Emax E1.2 circuit-breakers | 4 - Description

Manual operations for opening

and closing the circuit-breaker

The following is the sequence of steps for closing and opening the circuit-breaker:

1. Check that the circuit-breaker is open (open / closed indicator "O - OPEN"), and check that the springs

are unloaded (spring signalling device "white - DISCHARGED SPRING") as indicated in Figure 18.

2. Loading the springs - Pull the lever [A] downwards several times until the springs loaded signalling

device [B] is “yellow - CHARGED SPRING” as indicated in Figure 19.

Figure 18

Figure 19

3. Check that the circuit-breaker is open (open/closed signalling device “O - OPEN”), and check that the

springs are loaded (springs signalling device “yellow - CHARGED SPRING”) as indicated in Figure 20.

4. Closing - Press the closing push-button “I - Push ON” as indicated in Figure 21.

Figure 20

Figure 21

5. Check that the circuit-breaker is closed (open/closed indicator "I - CLOSED"), and check that the

springs are discharged (spring signalling device "white - DISCHARGED SPRING" as indicated in

Figure 22.

6. Opening - Press the opening push-button “O - Push OFF” as indicated in Figure 23.

Figure 22

Figure 23

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ABB SACE Emax 2 Installation, Operation And Maintenance Instructions

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