Installation
66
9229 0025 176 0E
2021-11-15
Motor-driven third-party withdrawable part (optional)
Material damage due to sudden motor start!
The motor of the motor-driven withdrawable part starts up suddenly as soon as the
secondary voltage is applied to the connection terminals of the motor.
Parts can be damaged if the motor cannot be stopped.
The switchgear control system must be carried out by the customer in such a way
that safe movement of the withdrawable part with the vacuum circuit-breaker is en-
sured.
Integration attempts with the motor-driven withdrawable part must be carried out in
the switchgear.
Avoid overloading the switchgear due to mechanical influences.
Maximum current at
nominal voltage
DC 220 V: 1.5 A
DC 110 V: 2.5 A
Maximum permissible
power consumption
DC 220 V: 180 W
DC 110 V: 275 W
(nominal values, without mechanical influences of the switchgear used)
The motor-driven withdrawable part is not suitable for continuous operation. A max-
imum of 3 retraction and extension operations are allowed without a break. A break
of 3 minutes must be observed before further retraction and extension operations.
The maximum permissible torque on the drive spindle of the motor-driven with-
drawable part is 25 Nm.
Clearance must be guaranteed under the motor-driven withdrawable part, down to
the level of the running surfaces of the wheels.
The motor-driven withdrawable part is inserted in the guide rails on the system side
as described in chapter “Inserting and racking the SION
Signals of the motor-driven withdrawable part
Notes on switchgear logic
and control system
The motor is to be controlled in such a way that when the vacuum circuit-breaker is
switched on, by using the control signal of auxiliary switch S1, the motor is prevented
from starting and is electrically locked.
The direction of travel is reversed by reversing the polarity of the secondary voltage
of the motor.
To avoid damage to the operating mechanism unit, it must be ensured that the di-
Note
SION
®
Vacuum circuit-breakers are available with with-
drawable parts, which can optionally be moved in the
switchgear by motor.
The motor of the withdrawable part has no electronic
control and must be controlled electronically via the
switchgear.
Starting and stopping the withdrawable part must be en-
sured by the customer via the switchgear logic or switch-
gear control system.
Fig. 110 Withdrawable part with motor