ABB VM1 - Page 44

44 VM1 Vacuum circuit-breaker | Instruction manual 504/05
*)
Rail
**)
Front edge of bar
Figure 10/6: Vacuum circuit-breaker on withdrawable part, type VM1
3)
- Use in UniGear-type ZS1 and Powerbloc
- 12 kV, 2000 / 2500 / 3150
4)
, 4000
5)
A, 50 kA
4)
Table 1:
Panel type p N R
Powerbloc
275 694 688
UniGear-type ZS1
275 691±2 688±2
Panel type
Parameters
12
M W U
UniGear-type ZS1
Powerbloc
2000 A, 50 kA 120 79 694
… 4000
5)
A, 50 kA 149 109 694
Table 2:
1)
Only fitted on withdrawable parts for SACE up to 2500 A
2)
Remove the lifting lugs on both sides before commissioning
3)
See table page 40 and 41 (column Dimensional drawings)
4)
Heat sink only fitted for rated currents from 3150 A upwards
5)
Breakers for 4000 A with fan cooling
BA 504-05 GB_29102012.indd 44 30.10.12 13:45