Page 167 - Motor_protection_and_control_Manual_motor_starters_ contactors
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AS09 ... AS16 and ASL09 ... ASL16 3-pole contactors
Electrical durability
Electrical durability for AC-3 utilization category - Ue ≤ 440 V - Ambient temperature ≤ 60 °C
Switching cage motors: starting and switching off running motors. The breaking current Ic for AC-3 is equal to the rated opera-
tional current Ie (Ie = motor full load current). Maximum electrical switching frequency: 1200 cycles / hour.
AS09, ASL09 AS16, ASL16
AS12, ASL12
Millions of
operating 10
cycles
4
5
3 3 9
7
5
3
2 9 1
7
5
3
1
1
0.5
0.3
1 3 5 7 9
0.2
2 3 4 5 10 20
Breaking current Ic (A)
Example:
Breaking current = 4 A.
On the opposite curve at intersection " " 4 A the corresponding value for the electrical durability is approximately 3 millions
operating cycles.
1SBC101930S0201
ABB | 4/47