Basic HTML Version
9/5
Dimensions
Section 10
Temperature derating
Multi 9
Miniature circuit
breakers
Max current (A) according to ambient temperature
NG125
Temperature (°C)
20 25 30 35 40 45 50 55 60
Rating (A)
10
11 10.75 10.5 10.25
10
9.75 9.5 9.25 9
16
17.6 17.2 16.8 16.4
16
15.6 15.2 14.8 14.4
20
22 21.5 21 20.5
20
19.5 19 18.5 18
25
27.5 26.87 26.25 25.62
25
24.37 23.75 23.12 22.5
32
35.2 34.4 33.6 32.8
32
31.2 30.4 29.6 28.8
40
44 43 42 41
40
39 38 37 36
50
55 53.75 52.5 51.25
50
48.75 47.5 46.25 45
63
69.3 67.72 66.15 64.57
63
61.42 59.85 58.27 56.7
80
88 86 84 82
80
78 76 74 72
100
110 107.5 105 102.5
100
97.5 95 92.5 90
125
137.5 134.3 131.2 128.1
125
121.8 118.7 121.8 112.5
C120 in accordance with BS EN 60898
Temperature (°C)
20 25 30 35 40 45 50 55 60
Rating (A)
10
10.8 10.4
10
9.6 9.2 8.7 8.2 7.7 7.2
16
17.0 16.5
16
15.5 14.9 14.3 13.7 13.1 12.4
20
21.5 20.7
20
19.2 18.4 17.6 16.7 15.7 14.8
25
27.3 26.2
25
23.7 22.4 21.0 19.5 17.8 16.0
32
34.3 33.2
32
30.8 29.5 28.2 26.8 25.4 23.8
40
43.3 41.7
40
38.3 36.4 34.5 32.5 30.3 28.0
50
54.4 52.2
50
47.7 45.2 42.6 39.8 36.9 33.6
63
68.1 65.6
63
60.3 57.5 54.5 51.3 48.0 44.4
80
85.9 83.0
80
76.9 73.6 70.2 66.6 62.8 58.7
100
109.1 104.7
100
95.1 90.0 84.5 78.7 72.4 65.4
125
136.7 131.0
125
118.7 112.1 105.0 97.4 89.2 80.1
C120 in accordance with BS EN 60947-2
Temperature (°C)
20 25 30 35 40 45 50 55 60
Rating (A)
10
11.7 11.3 11 10.5
9.5
9.0 8.4 7.8 7.2
16
18.6 18.0 17 16.9
15.6
15.0 14.3 13.6 12.4
20
23.4 22.6 22 21.0
19.2
18.2 17.2 16.1 14.8
25
29.8 28.6 27 25.9
22.9
21.2 19.4 17.5 16.0
32
37.4 36.2 35 33.6
30.8
29.2 27.7 26.0 23.8
40
47.2 45.4 44 41.7
37.6
35.4 33.0 30.5 28.0
50
59.3 56.9 55 52.0
46.4
43.4 40.2 36.7 33.6
63
74.2 71.5 69 65.7
59.4
56.0 52.3 48.4 44.4
80
93.7 90.5 87 83.8
76.5
72.6 68.4 64.0 58.7
100
118.9 114.1 109 103.7
92.1
85.7 78.9 71.3 65.4
125
149.0 142.8 136 129.4
114.4
106.2 97.2 87.3 80.1
RCCB and I-NA switches
in accordance with BS EN 60947-3
Temperature (°C)
25 30 40 50 60
Rating (A)
16
20 19
16
15 13
25
32 30
25
23 20
40
46 44
40
36 32
63
75 70
63
56 50
80
95 90
80
72 65
100
123 120
100
95 90
125
135 133
125
118 110
Note:
the thermal protection device (overload) placed upstream from the residual current circuit
breaker should take the values indicated in the table above into account.