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Curve caratteristiche
250
200
150
100
50
0
1
0,1
0,3 0,5
Corrente commutabile l [A]
switching current A
safe breaking, no continuous arcing,
max. 1 switching cycle / s
Curva limite dell'arco a carico ohmico
5
3
10
Curve caratteristiche
2
( A )
2
S
I
50
40
30
20
10
0
10
20
device mounted on distance with air circulation.
max. current at 55°C over
2 contactrows = 4A
2x4 A =32A
device mounted without distance heated by
devices with same load,
max current at 55°C over
2 contactrows = 2A 2x2 A =8A
2
2
2
S
I = I + I
1
2
I , I - current in contactrows
Corrente in gruppi di contatti
1
2
Curva limite corrente quadratica totale BG 5933
2
( A )
2
S
I
75
60
45
30
15
0
10
20
device mounted on distance with air circulation.
max. current at 55°C over
3 contactrows = 4A
device mounted without distance heated by
devices with same load,
max current at 55°C over
3 contactrows = 1A 3x1 A =3A
S I = I + I + I
2
2
2
2
1
2
3
I , I , I
- current in contactrows
Corrente in gruppi di contatti
1
2
3
Curva limite corrente quadratica totale BH 5933
38
32A
2
°
T ( C)
30
40
50
60
M7260_a
2 2
2
2 2
2
°
T ( C)
30
40
50
60
M9946
2 2
2
3x4 A =48A
2 2
2
BG 5933, BH 5933 / 11.06.18 it / 993
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