Technical specifications
6.3 Technical specifications of 3WA circuit breakers
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
505
Endurance (operating cycles)
maintenance
maintenance
4)
maintenance
≤ 690 V
maintenance
4)
maintenance
4)
maintenance
≤ 690 V
4)
maintenance
maintenance
4)
maintenance
≤ 690 V
maintenance
≤ 1000 V
maintenance
≤ 1500 V
maintenance
4)
4)
Maintenance means: Replace main contacts and arc chutes (see Chapter Inspection and maintenance
(Page 387))
5)
The main contact elements can only be replaced in the factory.
Breaking capacity H and C
6)
Minimum interval time between two operations