Page 184 - ABB_Motor _Protection_and_Control_catalogue_20221216

3/108 ABB MOTOR PROTECTION AND CONTROL

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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
03
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 AF190 AF265 AF580 * *
cycles AF09 AF12 AF16 AF26 AF40 AF65 AF80, AF96 AF116, AF140, AF205 AF305 AF370 AF400 AF460 AF750
10 AF146

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)

Note: * For AF580 and AF750 contacts needs to be replaced after 750k operations.