Technical information
4/26
1SDC210033D0202
Temperature performances
All the Tmax XT circuit-breakers can be used under the following environmental conditions:
Q
-25°C +70°C: range of atmospheric temperature where the circuit-breaker is installed;
Q
-40°C +70°C: range of atmospheric temperature where the circuit-breaker is stored.
The circuit-breakers fitted with thermomagnetic trip unit have the thermal element set for a reference
temperature of +40°C. With the same setting, for temperatures other than +40°C there is a variation
in the thermal trip threshold as indicated in the tables below.
XT1
T amb (°C) 10 20 30 40 45 50 60 70
In [A]
MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A]
16
13 18 12 18 11.9 17 11.2 16 10.8 15.5 11 15 10 14 9 13
20
16 23 15 22 14.7 21 14 20 13.6 19.4 13 19 12 18 11 16
25
20 29 19 28 18.2 26 17.5 25 16.9 24.2 16 23 15 22 14 20
32
26 37 25 35 23.8 34 22.4 32 21.7 31.0 21 30 20 28 18 26
40
32 46 31 44 29.4 42 28 40 27.1 38.7 27 38 25 35 23 33
50
40 58 39 55 37.1 53 35 50 33.9 48.4 33 47 31 44 28 41
63
51 72 49 69 46.2 66 44.1 63 42.7 61 41 59 39 55 36 51
80
64 92 62 88 58.8 84 56 80 54.2 77 53 75 49 70 46 65
100
81 115 77 110 73.5 105 70 100 67.8 97 66 94 61 88 57 81
125
101 144 96 125 91.7 131 87.5 125 84.7 121 82 117 77 109 71 102
160
129 184 123 176 117.6 168 112 160 108.4 155 105 150 98 140 91 130
XT2 with thermomagnetic trip units
T amb (°C) 10 20 30 40 45 50 60 70
In [A]
MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A]
1.6
1.3 1.8 1.2 1.8 1.2 1.7 1.1 1.6 1.1 1.5 1.1 1.5 1.0 1.4 0.9 1.3
2
1.6 2.3 1.5 2.2 1.5 2.2 1.4 2.0 1.3 1.9 1.3 1.9 1.2 1.7 1.1 1.6
2.5
2.0 2.9 1.9 2.8 1.8 2.6 1.8 2.5 1.7 2.4 1.6 2.3 1.5 2.2 1.4 2.0
3
2.5 3.6 2.5 3.5 2.5 3.5 2.1 3.0 2.0 2.9 2.0 2.8 1.8 2.6 1.6 2.3
4
3.2 4.6 3.1 4.4 2.9 4.2 2.8 4.0 2.7 3.9 2.6 3.7 2.5 3.5 2.2 3.2
6.3
5.0 7.2 4.9 6.9 4.6 6.6 4.4 6.3 4.2 6.1 4.1 5.9 3.9 5.5 3.6 5.1
8
6.4 9.2 6.2 8.8 5.9 8.4 5.6 8.0 5.4 7.7 5.3 7.5 4.9 7.0 4.6 6.5
10
8.1 11.5 7.7 11.0 7.4 10.5 7.0 10.0 6.7 9.6 6.5 9.3 6.1 8.7 5.7 8.1
12.5
10.1 14.4 9.7 13.8 9.2 13.2 8.8 12.5 8.4 12.0 8.2 11.7 7.6 10.9 7.1 10.1
16
13 18.0 12.0 18.0 11.9 17.0 11.2 16.0 10.8 15.4 10.5 15.0 9.8 14.0 9.1 13.0
20
16 23.0 15.4 22.0 14.7 21.0 14.0 20.0 13.5 19.3 13.3 19.0 11.9 17.0 11.2 16.0
25
20 29.0 19.6 28.0 18.2 26.0 17.5 25.0 16.8 24.0 16.1 23.0 15.4 22.0 14.0 20.0
32
26 37.0 24.5 35.0 23.8 34.0 22.4 32.0 21.6 30.8 21.0 30.0 19.6 28.0 18.2 26.0
40
32 46.0 30.8 44.0 29.4 42.0 28.0 40.0 27.0 38.5 25.9 37.0 24.5 35.0 22.4 32.0
50
40 57.0 38.5 55.0 37.1 53.0 35.0 50.0 33.7 48.2 32.9 47.0 30.1 43.0 28.0 40.0
63
50 72.0 48.3 69.0 46.2 66.0 44.1 63.0 42.5 60.7 41.3 59.0 38.5 55.0 35.7 51.0
80
64 92.0 61.6 88.0 58.8 84.0 56.0 80.0 54.0 77.1 52.5 75.0 49.0 70.0 45.5 65.0
100
81 115.0 77.0 110.0 73.5 105.0 70.0 100.0 67.5 96.4 65.1 93.0 60.9 87.0 56.7 81.0
125
101 144.0 96.6 138.0 92.4 132.0 87.5 125.0 84.3 120.5 81.9 117.0 76.3 109.0 70.7 101.0
160
129 184.0 123.0 178.0 117.6 168.0 112.0 160.0 107.9 154.2 105.0 150.0 97.3 139.0 90.3 129.0
XT3
T amb (°C) 10 20 30 40 45 50 60 70
In [A]
MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A] MIN [A] MAX [A]
63
51 72 49 69 46 66 44 63 43 61 41 59 39 55 36 51
80
64 92 62 88 59 84 56 80 54 77 53 75 48 69 45 64
100
80 115 77 110 74 105 70 100 68 97 65 93 61 87 56 80
125
101 144 96 138 92 132 88 125 85 121 81 116 76 108 70 100
160
129 184 123 176 118 168 112 160 108 155 104 149 97 139 90 129
200
161 230 154 220 148 211 140 200 136 194 130 186 121 173 113 161
250
201 287 193 278 184 263 175 250 169 242 163 233 151 216 141 201