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MCBs technical details
Performances at different ambient temperatures

SU200 M - UL 489
Ambient temperature T (°C)
I (A) -40 -30 -20 -10 0 10 25 30 40 50 60 70
n
1)
0.2 0.27 0.26 0.25 0.24 0.23 0.22 0.22 0.21 0.20 0.19 0.19 0.18
0.3 0.40 0.39 0.37 0.36 0.35 0.33 0.32 0.31 0.30 0.29 0.28 0.27
1)
0.5 0.67 0.64 0.62 0.60 0.58 0.56 0.54 0.52 0.50 0.48 0.46 0.45
0.75 1.00 0.97 0.93 0.90 0.87 0.84 0.81 0.78 0.75 0.72 0.70 0.67
1)
1 1.34 1.29 1.24 1.20 1.16 1.12 1.08 1.04 1.00 0.96 0.93 0.89
1.6 2.14 2.06 1.99 1.92 1.85 1.78 1.72 1.66 1.6 1.54 1.48 1.43
2 2.67 2.58 2.49 2.40 2.31 2.23 2.15 2.07 2.00 1.93 1.85 1.79
3 4.01 3.87 3.73 3.60 3.47 3.35 3.23 3.11 3.00 2.89 2.78 2.68
4 5.35 5.16 4.97 4.80 4.63 4.46 4.30 4.15 4.00 3.85 3.71 3.57
5 6.69 6.45 6.22 6.00 5.78 5.58 5.38 5.19 5.00 4.82 4.64 4.47
6 8.02 7.74 7.46 7.20 6.94 6.69 6.45 6.22 6.00 5.78 5.56 5.36
8 10.70 10.32 9.95 9.59 9.25 8.92 8.60 8.30 8.00 7.70 7.42 7.14
10 13.37 12.90 12.44 11.99 11.56 11.15 10.75 10.37 10.00 9.63 9.27 8.93
13 17.38 16.76 16.17 15.59 15.03 14.50 13.98 13.48 13.00 12.52 12.06 11.61
15 20.06 19.34 18.65 17.99 17.35 16.73 16.13 15.56 15.00 14.45 13.91 13.40
16 21.40 20.63 19.90 19.19 18.50 17.84 17.21 16.59 16.00 15.41 14.84 14.29
20 26.75 25.79 24.87 23.98 23.13 22.30 21.51 20.74 20.00 19.26 18.55 17.86
25 33.43 32.24 31.09 29.98 28.91 27.88 26.88 25.93 25.00 24.08 23.18 22.33
30 40.12 38.69 37.31 35.98 34.69 33.45 32.26 31.11 30.00 28.89 27.82 26.79
32 42.79 41.27 39.79 38.37 37.01 35.69 34.41 33.18 32.00 30.82 29.68 28.58
35 46.81 45.14 43.53 41.97 40.47 39.03 37.64 36.30 35.00 33.71 32.46 31.26
40 53.49 51.58 49.74 47.97 46.26 44.61 43.01 41.48 40.00 38.52 37.09 35.72
50 66.87 64.48 62.18 59.96 57.82 55.76 53.77 51.85 50.00 48.15 46.37 44.65
60 80.24 77.38 74.61 71.95 69.39 66.91 64.52 62.22 60.00 57.78 55.64 53.58
63 84.25 81.24 78.35 75.55 72.85 70.25 67.75 65.33 63.00 60.67 58.42 56.26
1) Current ratings 0.2, 0.3 and 0.75 A available with K characteristic only

S200 80-100A
B and C Ambient temperature T (°C)
I (A) -40 -30 -20 -10 0 10 25 30 40 50 60 70
n
80 96.8 94.4 92.0 89.6 87.2 84.8 82.4 80.0 77.6 75.2 72.8 70.4
100 121.0 118.0 115.0 112.0 109.0 106.0 103.0 100.0 97.0 94.0 91.0 88.0

SN201
B, C and D
I (A) -25 -20 -10 0 10 20 30 40 50 55
n
2 2.37 2.32 2.26 2.18 2.12 2.06 2.00 1.95 1.91 1.89
4 4.74 4.60 4.53 4.37 4.24 4.12 4.00 3.90 3.85 3.79
6 7.20 7.00 6.80 6.40 6.30 6.20 6.00 5.90 5.80 5.70
10 11.80 11.60 11.30 10.90 10.60 10.30 10.00 9.80 9.70 9.50
16 18.10 17.70 17.40 46.90 16.60 16.30 16.00 15.80 15.70 15.50
20 23.70 23.20 22.60 21.80 21.20 20.60 20.00 19.60 19.10 18.90
25 29.40 29.00 28.20 27.40 26.70 26.00 25.00 24.20 23.50 23.10
32 38.70 38.10 37.20 36.20 34.60 33.00 32.00 31.30 30.50 30.00
40 48.30 47.50 45.80 44.40 42.70 41.00 40.00 39.50 38.60 38.20