Siemens SENTRON 3WL Reference Manual page 38

3WL Air Circuit Breakers
3WL Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC)
Project planning aids
Door cut-out for operator panel using protective cover IP55
4 x R5
4 x 5,5
295-300
Switch mounting level
341
Mounting surface for switch or
guide frame
Safety clearances from grounded parts
Rated operational voltage Above
auxiliary connector
V/AC mm
Size I, fixed-mounted version
1)
500 75
1)
690 75
Size I, withdrawable version,
without arc chute cover
1)
500 50
1)
690 50
Size I, withdrawable version,
with arc chute cover
500 0
690 0
Size II, fixed-mounted version
1)
500 75
1)
690 75
1000 180
Size II, withdrawable version,
without arc chute cover
1)
500 50
1)
690 50
1000 100
Size II, withdrawable version,
with arc chute cover
0
500
690 0
Size III, fixed-mounted version
1)
500 75
1)
690 75
1000 180
Size III, withdrawable version,
without arc chute cover
1)
500 50
1)
690 50
1000 100
Size III, withdrawable version,
with arc chute cover
500 0
690 0
DC non-automatic air circuit breakers
300 45
600 200
1000 150
38 Siemens · 2009
Protective cover, IP55
Safety clearances from live parts
Lateral Rear Rated operational voltage
(each side)
mm mm V/AC
Size I, fixed-mounted version
0 0 500
0 0 690
Size I, withdrawable version,
without arc chute cover
0 0 500
0 0 690
Size I, withdrawable version,
with arc chute cover
2)
0 0 500
2)
0 0 690
Size II, fixed-mounted version
0 0 500
0 0 690
0 0 1000
Size II, withdrawable version,
without arc chute cover
0 0 500
0 0 690
0 0 1000
Size II, withdrawable version,
with arc chute cover
2)
0 0
500
2)
0 0 690
Size III, fixed-mounted version
0 0 500
0 0 690
0 0 1000
Size III, withdrawable version,
without arc chute cover
0 0 500
0 0 690
0 0 1000
Size III, withdrawable version,
with arc chute cover
2)
0 0 500
2)
0 0 690
1) Value for plate; 0 mm for struts and grids.
0 0
2) 40 mm (size II: 70 mm) for plates which cover the lateral openings in the
0 0
guide frame.
0 0
All safety clearances above the circuit breaker refer to the upper
edge of the auxiliary connector - not to the upper edge of the arc
chute! See dimensional drawings on pages 39 to 47, parts 4)
and 5).
400
395
Circuit-breaker
mounting level
313
Above
auxiliary connector
mm
150
300
150
300
14
14
250
600
430
250
600
350
14
14
75
500
430
50
500
350
14
14
148
Lateral Rear
(each side)
mm mm
20 20
50 125
20 14
50 14
100 14
100 14
50 20
100 140
100 125
50 14
100 30
100 14
50 14
225 14
20 20
100 125
100 125
20 14
100 14
100 14
50 14
200 14