Page 224 - Motor_protection_and_control_Manual_motor_starters_ contactors

DOL starters protected by moulded-case circuit-breakers and

overload relays
With AF contactors - Open type version in kit form

Application
Full voltage direct-on-line (DOL) 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
5
I = current
4 C = torque
In = nominal current
3
Cn = nominal torque
2
C
1
1SFC101191V0001
5 0 10 30 60 80 100
XT2S 160 + BEA140/XT2 +
AF140-30-11 Coordination types
The contactor and the moulded-case circuit-breaker 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:
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.

Main Technical Data
Standards IEC 60947-4-1 / EN 60947-4-1
Rated operational voltage Ue max. 400 V - 50/60 Hz
Rated insulation voltage Ui
acc. to IEC 60947-4-1 690 V
acc. to UL / CSA 600 V
Switching frequency ≤ 15 starts/hour - 80 % max. load factor - with max. 1.5 s starting time
≤ 30 starts/hour - 50 % max. load factor - with max. 1.5 s starting time
Ambient air temperature
Close to the device < 55 °C
IP20
Degree of protection
1SFC101190V0001

Mounting positions
Pos. 2
XT2S 160 + BEA140/XT2 + +30° -30°
AF140-30-11 + EF146
Pos. 4
Pos. 3

Pos. 1 Pos. 1 ± 30°
Pos. 1
1SBC101973S0201
Pos. 5
Direct-on-line Direct-on-line
MCCB + AF MCCB + AF + OL

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