Siemens SENTRON 3WL10 Manual page 105
Air circuit breaker
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Also See for SENTRON 3WL10:
- Equipment manual (272 pages) ,
- Manual (234 pages) ,
- Manual (58 pages)
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Spring charging motor (MO)
The spring charging motor (MO) automatically charges the closing springs when they are
discharged. If no power supply is available, the springs must be charged manually with the
manual lever of the operator on the circuit breaker.
Technical specifications
Rated control supply voltage U
Operating limits (acc. to IEC 60947-2)
Switch-on power
Continuous power
Make time
Charging time
Make time = magnetization time: Time with voltage applied that the spring charging motor requires
1)
to start charging. Charging the spring energy store then takes approx. 7 s.
Note
The motor is always supplied with the spring charged signaling switch (S21), which signals
the state of the springs.
The use of the spring charging motor does not reduce the life, the operating cycles, and the
frequency of operation of the whole product.
Remote reset magnet (RR)
With the remote reset magnet (RR), the circuit breaker can be reset remotely when the trip
unit has opened the circuit breaker.
Deliberate resetting of the ETU by mechanical operation on the device or remote resetting
via the RR is necessary for safety after overcurrent tripping. All faults in the distribution board
should be cleared first.
The reset coil is available for different voltage supplies.
Technical specifications
Rated control supply voltage U
Operating limits
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
s
1)
s
3.2 Electromechanical accessories
24 to 30 V
48 to 60 V
100 to 130 V
220 to 250 V
300 VA
100 VA
24 V
110 V
220 V
Accessories
AC
DC
✓
✓
✓
✓
✓
✓
✓
✓
85 to 110% U
s
300 W
100 W
200 ms
7 s
AC
DC
✓
✓
✓
✓
✓
✓
90 to 110% U
s
103
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