Page 190 - Motor_protection_and_control_Manual_motor_starters_ contactors

Auxiliary contact blocks for AS09 ... AS16, ASL09 ... ASL16

contactors and NS, NSL contactor relays
Electrical durability

Electrical durability for AC-15 utilization category - Ue ≤ 400 V
AC-15 utilization category according to IEC 60947-5-1 / EN 60947-5-1:
– making current: 10 x Ie with cos ϕ = 0.7 and Ue
– breaking current: Ie with cos ϕ = 0.4 and Ue.
This curve represents the electrical durability of the built-in or add-on auxiliary contacts in relation to the breaking current.

The curve has been drawn for resistive and inductive loads up to 400 V:
– AS09 ... AS16 and ASL09 ... ASL16 contactor built-in auxiliary contacts
– 1-pole CA3
4 – NS and NSL contactor relays.

Millions of
operating
cycles
30
20

10

5

3
2

1

0.5
0.3
0.2

1 3 5 7 9
0.1
0.02 0.05 0.1 0.2 0.3 0.5 1 1.3 2 3 4 5 6 10
Breaking current Ic (A)

Example:
Breaking current = 1.3 A
On the opposite curve at intersection " " 1.3 A the corresponding value for the electrical durability is approximately 2 millions
operating cycles.

1SBC101932S0201

4/70 | ABB