Mechanical Status Indicators - ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions

Mechanical status indicators The following are the possible states in which you can find the circuit-breaker during its use:
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1. Circuit-breaker open with springs discharged (see Figure 29).
2. Circuit-breaker open with springs loaded (see Figure 30).
3. Circuit-breaker closed with springs discharged (see Figure 31).
4. Circuit-breaker closed with springs charged and not ready to close (see Figure 32). This
state occurs when after closing (see step 4 - Manual operations for opening and closing
the circuit-breaker) the springs are reloaded manually or automatically by the gearmotor
(if provided).
5. Circuit-breaker open with springs charged and not ready to close (see Figure 33).This
state occurs in the following cases:
• The circuit-breaker is open due to tripping of protection releases and the Reset signal
has not been reset.To close the circuit-breaker press the TU Reset button on the front
of the circuit-breaker.
• The key lock or padlock is active in the open position.
• The undervoltage release is de-energized.
• The opening release is permanently on.
• The closing release is permanently on.
• The withdrawable circuit breaker is located, during the insertion / extraction, in an inter-
mediate position between connected and test.
• The button for enabling the insertion/extraction crank of withdrawable circuit-breaker
is pressed.
Figure 29
Figure 32
Figure 30
Figure 33
Emax E2.2-E4.2-E6.2 circuit-breakers | 4 - Description
ABB | SACE Emax 2
Figure 31