Page 134 - Motor_protection_and_control_Manual_motor_starters_ contactors

Reversing starters protected by manual motor starters

With AS, ASL contactors - open type version in kit form

Application
Full voltage 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 >
I /In C /Cn
7
6
I
1SBC101027F0014 4 I = current
5
C = torque
4 3 In = nominal current
Cn = nominal torque
2 C
MS116 + BEA16-3 + VM3 +
BER16C-3 + AS16-30-01 1
0 10 30 60 80 100

Coordination types
The contactor and the manual motor starter 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. 690 V - 50/60 Hz
Rated insulation voltage Ui according to IEC 60947-4-1 690 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
Degree of protection IP20
Note: Minimum switchover delay of 50 ms must be introduced between respective opening and closing of AC operated reversing
contactors

Mounting positions
Pos. 2Pos. Posos +30° -30°

Pos. 4 Pos. 3

Pos. 1 Pos. 1 ± 30°

1SBC101274S0201

Pos. 5

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