Operation
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9229 0025 176 0E
2021-11-15
Manually charging the closing spring
If the supply voltage is applied, the closing spring is automatically charged by the
motor.
Hand crank 3AX1530-4B
If the supply voltage fails or is disconnected, the closing spring can be charged with
the hand crank.
Suddenly rotating hand crank when motor starts up!
Risk of injury if hand cranks
other than the original hand crank are used.
If the hand crank does not have a slip coupling, the inserted hand crank will also ro-
tate when the motor starts up.
The vacuum circuit-breaker must only be charged with the original hand crank.
• To do this, fit the hand crank onto the hand crank coupling through the opening
with the adapter pushed forward and
• turn clockwise until the spring state indicator changes over:
• Remove hand crank
The adapter of the hand crank is designed in such a way that the hand crank be-
comes uncoupled when the motor supply voltage returns.
Discharged
Charged
Fig. 112 Charging the closing spring with the hand
crank
WARNING
