Page 240 - Motor_protection_and_control_Manual_motor_starters_ contactors

DOL and reversing starters protected by overload relays

With AF contactors - Open type version in kit form

Application
Full voltage direct-on-line and reversing starting for controlling three-phase asynchronous motors is a simple
and economic solution characterised by a high starting torque (1.9 to 2.1 times full-speed torque) and a
starting current 5.5 to 7 times nominal current.
I C
/In /Cn
7
6 I
1SBC100058V0014 5 4 I = current
C = torque
3 In = nominal current
Cn = nominal torque
AF09-30-10 + TF42
2
C
1
5 0 10 30 60 80 100

Coordination Types
The contactor, the short-circuit protection device and the thermal overload relay control and protect motors
against overload and short-circuits according to coordination types 1 and 2 (IEC 60947-4-1 / EN 60947-4-1)
defining the anticipated level of service continuity as follow:
1SFC101153V0001 Type 1: In short-circuit conditions, the contactor or starter does not endanger persons or installations and
will not be able to then operate without being repaired or having parts replaced.
Type 2: In short-circuit conditions, the contactor or starter does not endanger persons or installations and
will be able to operate afterwards. The risk of contacts light welding is acceptable.
AF140-30-11 + TF140DU

Main Technical Data
Standards IEC 60947-4-1 / EN 60947-4-1
Rated operational voltage Ue max. 690 V - 50/60 Hz
Rated insulation voltage Ui
acc. to IEC 60947-4-1 690 V
acc. to UL / CSA 600 V
Ambient air temperature
Close to the device ≤ 60 °C (TF42: 38 A above ≤ 50 °C)
Degree of protection IP20
1SBC100059V0014 Switching frequency Refer to "Switching frequency diagrams" page

AF09-30-10 + BER16-4 + VEM4
+ TF42

Mounting positions

1SFC101152V0001

AF140-30-11 + BER140-4 + VM19 Pos. 1 Pos. 1 1SBC101920S0201
+ TF140DU Direct-on-line Reversing

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