Page 178 - B_ELSB_Cat_2022_01_MCBs

1/178 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 9AKK 107991 A8329
1

—
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 Z 6 ≤ 2 10 10 10 10 10 10 10 10 10 0.5 2 6 6 10 10 10 10 10
S 400 E
3 10 10 10 10 10 10 10 10 10 0.3 0.7 1.8 6 10 10 10 10 10
4 10 10 10 10 10 10 10 10 10 0.3 0.6 1.3 3.5 4 7 10 10 10
6 10 10 10 10 10 10 10 10 10 0.2 0.5 0.9 1.3 2.7 3.8 6 10 10
8 10 10 10 10 10 10 10 10 10 0.4 0.6 1.3 1.5 2.4 4 6 6
10 10 10 10 10 10 10 10 10 10 0.4 0.6 1.3 1.5 2.4 4 6 6
16 10 10 10 10 10 10 10 10 0.5 1.1 1.5 1.7 3 4.5 6
20 10 10 10 10 10 10 10 0.7 1.4 2 3 4.4
25 10 10 10 10 10 10 0.7 1.4 2 3 4.4
32 10 10 10 10 10 2 3 4
40 10 10 10 10 2 3 4
50 10 10 10 3
63 10 10 3

Limited overload selectivity