Page 187 - B_ELSB_Cat_2022_01_MCBs

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MCBs technical details
MCBs internal resistance, power loss and max. permissible earth-fault
loop impedance

Internal resistance and power loss of the miniature circuit-breakers
Internal resistance per pole in mΩ, power loss per pole in W

Type Rated Device series
current
B C D K Z
I A mΩ W mΩ W mΩ W mΩ W mΩ W
n
S 200 P 0.2 - - - - - - 42500.0 1.7 - -
0.3 - - - - - - 20000.0 1.8 - -
0.5 - - 5500.0 1.4 5500.0 1.4 6340.0 1.6 10100.0 2.5
0.75 - - - - - - 2500.0 1.4 - -
1 - - 1440.0 1.4 1440.0 1.4 1400.0 1.4 2270.0 2.3
1.6 - - 630.0 1.6 630.0 1.6 625.0 1.6 1100.0 2.8
2 - - 460.0 1.8 460.0 1.8 480.0 1.8 619.0 2.5
3 - - 211.0 1.9 211.0 1.9 211.0 1.9 211.0 1.9
4 - - 150.0 2.4 150.0 2.4 163.0 2.6 163.0 2.6
6 61.0 2.2 61.0 2.2 61.0 2.2 67.0 2.4 104.0 3.7
8 45.0 2.9 45.0 2.9 45.0 2.9 45.0 2.9 55.0 3.5
10 14.0 1.4 14.0 1.4 14.0 1.4 19.0 1.9 21.0 2.1
13 13.3 2.3 13.3 2.3 13.3 2.3 - - - -
16 9.0 2.5 9.0 2.5 9.0 2.5 8.2 2.1 10.9 2.8
20 7.3 2.9 7.3 2.9 7.3 2.9 7.3 2.9 7.3 2.9
25 5.6 3.5 5.6 3.5 5.6 3.5 5.6 3.5 5.6 3.5
32 4.1 4.2 4.1 4.2 4.1 4.2 4.1 4.2 4.1 4.2
40 4.0 6.4 4.0 6.4 4.0 6.4 4.0 6.4 4.0 6.4
50 1.2 3.0 1.2 3.0 1.2 3.0 1.2 3.0 1.8 4.4
63 1.4 5.6 1.4 5.6 1.4 5.6 1.3 5.2 1.3 5.2

Type Rated Device series
current
B C D K Z
I A mΩ W mΩ W mΩ W mΩ W mΩ W
n
S 300 P 0,2 - - - - - - 28000.0 1.1 - -
0,3 - - - - - - 12566.7 1.1 - -
0,5 - - 5312.0 1.3 5088.0 1.3 5088.0 1.3 8596.0 2.1
0,75 - - - - - - 2005.3 1.1 - -
1 - - 1436.0 1.4 1298.0 1.3 1298.0 1.3 2197.0 2.2
1,6 - - 526.6 1.3 496.9 1.3 496.9 1.3 944.9 2.4
2 - - 343.0 1.4 334.3 1.3 334.3 1.3 540.0 2.2
3 - - 152.7 1.4 142.0 1.3 142.0 1.3 247.7 2.2
4 - - 88.3 1.4 88.3 1.4 88.3 1.4 136.8 2.2
6 28.5 1.0 24.3 0.9 22.2 0.8 45.0 1.6 68.5 2.5
8 24.8 1.6 24.8 1.6 21.1 1.4 19.0 1.2 28.1 1.8
10 14.0 1.4 14.5 1.5 12.0 1.2 13.4 1.3 20.1 2.0
13 9.5 1.6 7.7 1.3 7.7 1.3 - - - -
16 6.6 1.7 6.6 1.7 6.3 1.6 5.5 1.4 7.8 2.0
20 5.8 2.3 5.8 2.3 5.8 2.3 5.3 2.1 6.3 2.5
25 3.7 2.3 3.7 2.3 3.7 2.3 5.1 3.2 5.3 3.3
32 2.8 2.9 2.8 2.9 2.8 2.9 2.8 2.9 3.0 3.1
40 1.8 2.9 1.8 2.9 1.8 2.9 2.1 3.4 3.1 4.9
50 1.5 3.7 1.5 3.7 1.4 3.4 1.6 3.9 2.1 5.2
63 1.5 6.0 1.5 6.0 1.5 6.0 1.5 6.0 1.5 6.0