Page 183 - B_ELSB_Cat_2022_01_MCBs

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MCBs technical details
Coordination tables: selectivity

Short-circuit discrimination (in kA) apply for combinations : fuse gL / gG – S 750 DR – S 200 / S 400 E
1)

fuse: 63 A gG 80 A gG 100 A gG
supply side: S 750 DR
Char. E / K
final I [kA] 25
circuit: cu
I [A] 32 40 50 63 32 40 50 63 80 32 40 50 63 80 100
n
≤ 2 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15
3 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
4 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
6 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
8 7 6 6 5 10 10 10 8 7 10 10 10 10 10 10
10 7 6 6 5 10 10 10 8 7 10 10 10 10 10 10
S 200 B, C, 6 13 6 6 6 5 9 8 8 7 6 10 10 10 10 10 10
S 400 E D, K, Z 16 6 6 6 5 9 8 8 7 6 10 10 10 10 9 8
20 5 5 4.5 4.5 6 7 7 6.5 5.5 10 10 10 10 9 8
25 4.5 4.5 4 7 6 6 5.5 10 10 10 9 8
32 4 3.5 6 5.5 5 9 9 8 7
40 3 5 4 8 7 6
50 2 5 4
63 4

2
1) The selectivity limit current I results from the let-through I t-value of S 750 DR plus S 200 /S 400 and the pre-arcing (melting) I t-value of a fuse acc. to IEC / EN 60269
2
s1
Short-circuit discrimination (in kA) apply for combinations : fuse gL / gG – S 750 DR – S 200 / S 400 E
1)

fuse: 125 A gG 160 A gG
supply side: S 750 DR
Char. E / K
final
circuit: I [kA] 25
cu
I [A] 32 40 50 63 80 100 32 40 50 63 80 100
n
≤ 2 15 15 15 15 15 15 15 15 15 15 15 15
3 10 10 10 10 10 10 10 10 10 10 10 10
4 10 10 10 10 10 10 10 10 10 10 10 10
6 10 10 10 10 10 10 10 10 10 10 10 10
8 10 10 10 10 10 10 10 10 10 10 10 10
10 10 10 10 10 10 10 10 10 10 10 10 10
S 200 B, C, 13 10 10 10 10 10 10 10 10 10 10 10 10
S 400 E D, K, Z 6 16 10 10 10 10 10 10 10 10 10 10 10 10
20 10 10 10 10 10 10 10 10 10 10 10 10
25 10 10 10 10 10 10 10 10 10 10
32 10 10 10 10 10 10 10 10
40 10 10 10 10 10 10
50 10 10 10 10
63 9 10
2
1) The selectivity limit current I results from the let-through I t-value of S 750 DR plus S 200 /S 400 and the pre-arcing (melting) I t-value of a fuse acc. to IEC / EN 60269
2

s1