Page 353 - Motor_protection_and_control_Manual_motor_starters_ contactors

3-pole contactors

Electrical durability

Electrical durability for AC-2 or AC-4 utilization category - Ue ≤ 440 V
Ambient temperature ≤ 60 °C for AF09 ... AF370, ≤ 55 °C for AF400 ... AF1650
Switching cage motors: starting, reverse operation and step-by-step operation. The breaking current Ic is equal to 2.5 x Ie for
AC-2 and 6 x Ie for AC-4, keeping in mind that Ie is the motor rated operational current (Ie = motor full-load current).
Maximum electrical switching frequency: see "Technical data".

Millions of
operating AF30, AF38 AF52 AF116, AF140, AF190 AF265 AF305
cycles AF09 AF12 AF16 AF26 AF40 AF65 AF80, AF96 AF146 AF205 AF370 AF400 AF460 AF580 AF750
10

5
5
3
2 9
7
5
3
1 1
0.5

0.3
0.2 9
7
5
3
0.1 1

0.05
0.03
0.02 9
7
5
3 13 57 9 13 57 9
0.01 1
1 3 5 7 9 1 3 5 7 9 1 3 5 7 9
0.005
2 3 5 10 20 30 50 100 200 300 500 1000 2000 3000 5000
Breaking current Ic (A)

1SBC101942S0201 - Rev. A

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