Page 181 - 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 S200P 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
S200P B 25 6 25 25 25 25 25 25 25 25 25 0.2 0.4 0.6 1.3 2.5 3 5.5 12 25
10 25 25 25 25 25 25 25 25 25 0.6 1 1.5 1.8 2.5 3.7 5.5
13 25 25 25 25 25 25 25 25 25 0.6 1 1.5 1.8 2.5 3.7 5.5
16 25 25 25 25 25 25 25 25 1 1.4 1.6 2 3 5
20 25 25 25 25 25 25 25 0.7 1.5 2 3 4
25 25 25 25 25 25 25 0.7 1.5 2 3 4
15 32 15 15 15 15 15 1.9 2.7 3.5
40 15 15 15 15 1.9 2.7 3.5
50 15 15 15 2.7 3.4
63 15 15 2.7 3.4

Limited overload selectivity

Discrimination of S750 DR with respect to downstream MCB S200P 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
S200P C 25 ≤ 2 25 25 25 25 25 25 25 25 25 0.3 0.8 1.5 6 10 25 25 25 25
3 25 25 25 25 25 25 25 25 25 0.3 0.8 1.5 6 10 25 25 25 25
4 25 25 25 25 25 25 25 25 25 0.3 0.6 1 3.3 4 6 25 25 25
6 25 25 25 25 25 25 25 25 25 0.2 0.4 0.6 1.3 2.5 3 5.5 12 25
8 25 25 25 25 25 25 25 25 25 0.6 1 1.5 1.8 2.5 3.7 5.5
10 25 25 25 25 25 25 25 25 25 0.6 1 1.5 1.8 2.5 3.7 5.5
13 25 25 25 25 25 25 25 25 25 0.6 1 1.5 1.8 2.5 3.7 5.5
16 25 25 25 25 25 25 25 25 1 1.4 1.6 2 3 5
20 25 25 25 25 25 25 25 0.7 1.5 2 3 4
25 25 25 25 25 25 25 0.7 1.5 2 3 4
15 32 15 15 15 15 15 1.9 2.7 3.5
40 15 15 15 15 1.9 2.7 3.5
50 15 15 15 2.7 3.4
63 15 15 2.7 3.4
Limited overload selectivity