Page 208 - ABB_Motor _Protection_and_Control_catalogue_20221216

3/132 ABB MOTOR PROTECTION AND CONTROL

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AF09..K ... AF38..K 3-pole contactors - with Push-in Spring terminals
Electrical durability

Electrical Durability for AC-1 Utilization Category - Ue ≤ 690 V.
03
Switching non-inductive or slightly inductive loads. The breaking current Ic for AC-1 is equal to the rated
operational current of the load.
Ambient temperature and maximum electrical switching frequency: see "Technical Data".

AF09 AF12 AF16 AF26 AF30, AF38
Millions of operat-
ing cycles
10

5

3 9
7
5
3
2 9 1
7
5
3
1
1

0.5

0.3 9
7
5
3
0.2 1
13 57 9 15 9 13 57 9
13 57 9 15 9
1 3 5 7 9 1 3 5 7 9
0.1
2 3 5 10 20 30 50 100 200 300 500 1000
26.5 Breaking current Ic (A)

Example:
Ic / AC-1 = 26.5 A – Electrical durability required = 2 millions operating cycles.
Using the AC-1 curves above select the AF26 contactor at intersection " " (26.5 A / 2 millions operating cycles).