Description
20 9229 0025 176 0A
2019-08-05
Anti-pumping device (-K1), auxiliary contactor (-K1)
Closing solenoid (-Y9)
If simultaneous electrical CLOSE and OPEN commands
are continuously applied to the vacuum circuit-breaker, it
returns to the open position after being closed.
The function of the auxiliary contactor (-K1) causes the
vacuum circuit-breaker to pause at this point until the
CLOSE command is given again.
This prevents continuous closing and opening (pump-
ing).
Fig. 24 Auxiliary contactor (34)
The closing solenoid (-Y9) unlatches the charged closing
spring and switches the vacuum circuit-breaker on elec-
trically. It is available for DC or AC voltage.
The closing solenoid (-Y9) is not designed for continuous
operation and is terminated within the circuit-breaker via
the auxiliary switch (-S1) at the factory.
The operator's supply voltage is permitted to deviate
from the rated supply voltage of the vacuum circuit-
breaker by -15 % to +10 %.
The closing solenoid (-Y9) is protected against overvolt-
age 60 V.
Power consumption
300 to 370 W / VA (3AY1410-..)
Fig. 25 Closing solenoid (52)
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