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MCBs technical details
Performances at different ambient temperatures

DDA200 + S200, DS200 with B, C and D characteristics
Max. operating current depending on the ambient temperature of a circuit-breaker in load circuit.
B and C Ambient temperature T (°C)
I (A) -25 -20 -10 0 10 20 30 40 50 55
n
0.5 0.64 0.62 0.60 0.58 0.55 0.53 0.50 0.47 0.44 0.43
1 1.27 1.25 1.20 1.15 1.11 1.05 1.00 0.94 0.88 0.85
1.6 2.04 2.00 1.92 1.85 1.77 1.69 1.60 1.51 1.41 1.36
2 2.54 2.49 2.40 2.31 2.21 2.11 2.00 1.89 1.76 1.70
3 3.80 3.70 3.60 3.50 3.30 3.20 3.00 2.80 2.60 2.50
4 5.10 5.00 4.80 4.60 4.40 4.20 4.00 3.80 3.50 3.40
6 7.60 7.50 7.20 6.90 6.60 6.30 6.00 5.70 5.30 5.10
8 10.15 10.00 9.60 9.20 8.80 8.40 8.00 7.50 7.10 6.80
10 12.70 12.50 12.00 11.50 11.10 10.50 10.00 9.40 8.80 8.50
13 16.50 16.20 15.60 15.00 14.40 13.70 13.00 12.30 11.50 11.10
16 20.40 20.00 19.20 18.50 17.70 16.90 16.00 15.10 14.10 13.60
20 25.40 24.90 24.00 23.10 22.10 21.10 20.00 18.90 17.60 17.00
25 31.80 31.20 30.00 28.90 27.60 26.40 25.00 23.60 22.00 21.20
32 40.60 39.90 38.50 37.00 35.40 33.70 32.00 30.20 28.20 27.20
40 50.80 49.90 48.10 46.20 44.20 42.20 40.00 37.70 35.30 34.00
50 63.50 62.40 60.10 57.70 55.30 52.70 50.00 47.10 44.10 42.50
63 80.00 78.60 75.70 72.70 69.60 66.40 63.00 59.40 55.60 53.50

DDA200 + S200, DS200 (K and Z characteristics)
Max. operating current depending on the ambient temperature of a circuit-breaker in load circuit.
K and Z Ambient temperature T (°C)
I (A) -25 -20 -10 0 10 20 30 40 50 55
n
0,5 0.63 0.61 0.59 0.56 0.53 0.50 0.47 0.43 0.40 0.38
1 1.25 1.22 1.17 1.12 1.06 1.00 0.94 0.87 0.79 0.75
1,6 2.00 1.96 1.88 1.79 1.70 1.60 1.50 1.39 1.26 1.20
2 2.50 2.45 2.35 2.24 2.12 2.00 1.87 1.73 1.58 1.50
3 3.75 3.70 3.50 3.40 3.20 3.00 2.80 2.60 2.40 2.30
4 5.00 4.90 4.70 4.50 4.20 4.00 3.70 3.50 3.20 3.00
6 7.5 7.30 7.00 6.70 6.40 6.00 5.60 5.20 4.70 4.5
8 10.0 9.80 9.40 8.90 8.50 8.00 7.50 6.90 6.30 6.0
10 12.5 12.20 11.70 11.20 10.60 10.00 9.40 8.70 7.90 7.5
13 16.3 15.90 15.20 14.50 13.80 13.00 12.20 11.30 10.30 9.8
16 20.0 19.60 18.80 17.90 17.00 16.00 15.00 13.90 12.60 12.0
20 25.0 24.50 23.50 22.40 21.20 20.00 18.70 17.30 15.80 15.0
25 31.3 30.60 29.30 28.00 26.50 25.00 23.40 21.70 19.80 18.8
32 40.0 39.20 37.50 35.80 33.90 32.00 29.90 27.70 25.30 24.0
40 50.0 49.00 46.90 44.70 42.40 40.00 37.40 34.60 31.60 30.0
50 62.5 61.20 58.60 55.90 53.00 50.00 46.80 43.30 39.50 37.5
63 78.8 77.20 73.90 70.40 66.80 63.00 58.90 54.60 49.80 47.2