No. Name Unit Data
1 Rated voltage kV 12
2 Rated current A 630
3 Rated power frequency Hz 50
4 Rated
Insulating
Level
Power frequency withstand
Voltage (1 min. ) kV 42 (Pole to earth, betw. Phases)
48 (vacuum breaks)
Lightning impulse
Withstand voltage 75 (Pole to earth, betw. Phases)
85 (vacuum breaks)
5 Rated short circuit breaking current kA 12.5 16 20
6 Rated short circuit making current 31.5 40 50
7 Rated peak withstand current 31.5 40 50
8 Rated short time withstand current 12.5 16 20
9 Rated short circuit continuance time s 4
10 Rated short circuit breaking current times 30
11 Rated operating sequence O-0.3s-CO-180s-CO
12 Mechanical endurance times 10000
13 Trip current of over-current A 5
14 Power frequency withstand voltage of secondary circuit, 1 min. V 2000
15 Allowable wear thickness of moving & fixed contacts mm 3
16 Mass kg 103/138 (with separating device)