Page 641 - Motor_protection_and_control_Manual_motor_starters_ contactors
P. 641
AS09..S ... AS16..S and
ASL09..S ... ASL16..S 3-pole contactors - with spring terminals
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.
AS12..S, ASL12..S
AS09..S, ASL09..S AS16..S, ASL16..S
Millions of
operating
cycles
10
5
3 3 9
7
5
3
2 9 1 6
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.
1SBC101945S0201
ABB | 6/17