Page 215 - Motor protection and control Manual motor starters, contactors and overload relays

ABB MOTOR PROTECTION AND CONTROL 3/141

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3-pole contactors for safety applications
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".
Millions of
operating
AFS09 AFS12 AFS16 AFS26 AFS40 AFS52 AFS65
cycles AFS30, AFS38 AFS80, AFS96 AFS116 AFS146 AFS190 AFS205 AFS265 AFS305 AFS370 AFS400 AFS460 AFS580 AFS750
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 AFS26 contactor at intersection " " (26.5 A / 2 millions operating cycles).

1SBC100316S0201 - Rev. A