ABB | SACE Emax 2
Management operations | 3 - Description17 | © 2019 ABB | 1SDH001000R0002 - ECN000109166 - Rev. D
Continued from the previous page
7. Check that the circuit-breaker is open (open / closed indicator "O - OPEN"), and check that the springs
are discharged (spring signalling device "white - DISCHARGED SPRING") as indicated in Figure 31.
Figure 31
Mechanical status indicators
The following are the possible states in which you can find the circuit-breaker:
1. Circuit-breaker open with springs discharged (see Figure 32).
2. Circuit-breaker open with springs charged (see Figure 33).
3. Circuit-breaker closed with springs discharged (see Figure 34).
4. Circuit-breaker closed with springs charged and not ready to close (see Figure 35). This state occurs
when after closing (see step 4 - Manual operations for opening and closing the circuit-breaker) the
springs are recharged manually or automatically by the gearmotor (if provided).
5. Circuit-breaker open with springs charged and not ready to close (see Figure 36). This state occurs
in the following cases:
• The circuit-breaker is open due to tripping of protection trip units and the Reset signal has not been
reset. To close the circuit-breaker press the TU Reset pushbutton on the front of the circuit-breaker.
• The key lock or padlock is active in the open position.
• The undervoltage coil is de-energized
• The opening coil is permanently energized.
• The closing coil is permanently energized.
• The pushbutton for enabling the insertion/extraction crank of a withdrawable circuit-breaker is pressed.
Figure 32 Figure 33 Figure 34
Figure 35 Figure 36
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