Page 186 - B_ELSB_Cat_2022_01_MCBs

1/186 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 9AKK 107991 A8329
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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 current Device series
(internal resistance
and power loss per device)
B, C, D
I A mΩ W
n
SN201 L 2 520 2.1
SN201 4 147.5 2.4
SN201 M
6 64 2.3
10 19 1.9
16 14 3.6
20 12 4.8
25 7.1 4.4
32 6.5 6.7
40 4.7 7.5

Power losses S200C series (per device)
I n 1P+1P 2P 3P 4P
(A) (W) (W) (W) (W)
2 2.2 2.2 3.3 4.4
4 2.7 2.7 4.0 5.4
6 3.0 3.0 4.6 6.1
10 3.3 3.3 4.9 6.6
13 3.8 3.8 NA NA
15 NA 3.9 NA NA
16 4.2 4.2 6.3 8.4
20 5.0 5.0 7.6 10.1
25 NA 6.2 9.3 12.4
32 NA 7.6 11.4 15.2
40 NA 8.9 NA NA

Type Rated Device series
current
B, C  D K Z
I A mΩ W mΩ W mΩ W mΩ W
n
S 200 and 0.5 5500 1.4 4300 1.1 4300 1.1 8100 2.4
S 200 M 1 1440 1.4 1250 1.25 1250 1.25 2100 2.3
1.6 630 1.6 600 1.5 600 1.5 1000 2.8
2 460 1.8 410 1.65 410 1.65 619 2.5
3 150 1.3 130 1.2 130 1.2 235 2.4
4 110 1.8 105 1.7 105 1.7 149 2.4
6 55 2.0 52 1.9 52 1.9 75 3.2
8 23 1.5 24 1.5 24 1.5 27 2.0
10 19 2.1 16 1.6 13.5 1.4 24 2.7
13 14 2.3 14 2.2 13.5 1.4 – –
16 8.5 2.5 8.5 2.5 7.7 2.0 10.9 2.8
20 6.25 2.5 6.1 2.3 6.7 2.7 6.0 2.4
25 5.0 3.2 4.3 3.1 4.6 2.9 4.5 3.3
32 3.6 3.7 3.5 3.6 3.5 3.6 3.5 3.6
40 3.0 4.8 2.2 4.2 2.8 4.5 2.5 4.1
50 1.3 3.25 1.25 2.9 1.25 3.1 1.5 4.1
63 1.2 4.8 1.2 4.8 1.0 4.4 1.3 5.2
 Current intensities 0.5 – 4 apply exclusively to C-type trip characteristics.