Closing The Circuit Breaker; Opening The Circuit Breaker - Siemens UL 489 Operating Instructions Manual
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Also See for UL 489:
- Quick start manual (12 pages) ,
- Instruction sheet (12 pages) ,
- Application manual (96 pages)
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6.4
Closing the circuit breaker
Indicators
CLOSE button
Indicators
(The closing spring will be recharged by the motor-operated mechanism immediately after the circuit breaker has closed)
6.5
Opening the circuit breaker
OPEN button
Indicators
NOTE
The minimum time interval between ON- and OFF-signal of the Low-Voltage Power Circuit Breakers 3WL shall not be shorter than
100 ms.
Remote activation
or
Without motor-operated mechanism
With motor-operated mechanism
after 10 seconds
Without motor-operated mechanism
With motor-operated mechanism
Remote activation
or
6 – 7
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