Page 177 - B_ELSB_Cat_2022_01_MCBs

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MCBs technical details
Coordination tables: selectivity

Discrimination of S750 DR with respect to downstream MCB S200 / S400 compared to fuse protection
MCBs
S 200 /
S 400
supply side: S 750 DR fuse
final Char. E / K gG
circuit:
I [kA] 25
cu
I [A] 16 20 25 32 40 50 63 80 100 16 20 25 35 40 50 63 80 100
n
S 200 B, C 6 ≤ 2 10 10 10 10 10 10 10 10 10 0.3 0.7 1.2 4.6 5 10 10 10 10
S 400 E
3 10 10 10 10 10 10 10 10 10 0.3 0.7 1.2 4.6 5 10 10 10 10
4 10 10 10 10 10 10 10 10 10 0.3 0.6 0.9 2.8 3.5 6 10 10 10
6 10 10 10 10 10 10 10 10 10 0.2 0.5 0.8 2 2.5 3.3 5.5 10 10
8 10 10 10 10 10 10 10 10 10 0.7 1.5 2 2.5 3.5 5 6
10 10 10 10 10 10 10 10 10 10 0.7 1.5 2 2.5 3.5 5 6
13 10 10 10 10 10 10 10 10 10 0.7 1.5 2 2.5 3.5 5 6
16 10 10 10 10 10 10 10 10 1.3 1.4 2 2.9 4.1 6
20 10 10 10 10 10 10 10 0.7 1.8 2.6 3.5 5
25 10 10 10 10 10 10 0.7 1.8 2.6 3.5 5
32 10 10 10 10 10 2.2 3 4
40 10 10 10 10 2.2 3 4
50 10 10 10 3.5
63 10 10 3.5
Limited overload selectivity

Discrimination of S750 DR with respect to downstream MCB S200 / S400 compared to fuse protection
MCBs

S 200 /
S 400
supply side: S 750 DR fuse
final Char. E / K gG
circuit:
I [kA] 25
cu
I [A] 16 20 25 32 40 50 63 80 100 16 20 25 35 40 50 63 80 100
n
S 200 K 6 ≤ 2 10 10 10 10 10 10 10 10 10 0.3 1.2 4 6 10 10 10 10 10
S 400 E
3 10 10 10 10 10 10 10 10 10 0.3 0.7 1.2 4.6 5 10 10 10 10
4 10 10 10 10 10 10 10 10 10 0.3 0.6 0.9 2.8 3.5 6 10 10 10
6 10 10 10 10 10 10 10 10 10 0.7 1.7 2.5 3 5.9 9 10
8 10 10 10 10 10 10 10 10 10 0.4 0.8 1 1.7 2.5 4 6
10 10 10 10 10 10 10 10 10 10 0.4 0.8 1 1.7 2.5 4 6
16 10 10 10 10 10 10 10 10 0.7 0.9 1.2 2.2 3.1 4.6
20 10 10 10 10 10 10 10 0.7 1.1 1.7 2.6 3.5
25 10 10 10 10 10 10 0.7 1.1 1.7 2.6 3.5
32 10 10 10 10 10 1.5 2.2 3.5
40 10 10 10 10 1.5 2.2 3.5
50 10 10 10 2.2
63 10 10 2.2

Limited overload selectivity