RS Components
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Siemens 1.1 kW Soft Starter, 400 V ac, 3 Phase, IP20

On back order for despatch 24/12/2020, delivery within 7 working days from despatch date.
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RoHS Status: Not Applicable

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1 +$320.04

Miniature Soft Starter

Soft starter SIRIUS 3RW30 for standard applications for the soft starting of three-phase asynchronous motors.

Soft starting, reduction of current peaks, prevention of supply voltage fluctuations during startup, reduction of load on the power supply network, reduction of mechanical load in the drive, considerable saving of space and wiring compared to star-delta (wye-delta) starters and frequency converters, maintenance-free switching and extremely easy handling. The integrated bypass allows a very compact construction and ensures low heat dissipation in the control cabinet. Worldwide approvals (e.g. IEC and UL/CSA).

The 3RW soft starters are available for supply systems up to 690 V in a wide performance range with different control supply voltages and all with both screw and spring-type terminals. For the 3RW30/40 there are additional versions with 24 V control supply voltage. Some of the 3RW40 up to size S3, and all 3RW44 units also offer thermistor motor protection.
With the optional link module, the soft starters can be attached to the circuit breakers, even for the versions with spring-type terminals.
Simple, efficient and always up to date - SIRIUS modular system.

Features and Benefits

Compact design - width of 22.5mm
One device for entire control voltage range, from UC 24V to 230V
Optimal adjustment capability using only 3 potentiometers, start time, starting voltage & stopping time, all of which can be set individually
Operating status display (Ready/Run) via two LED's


Connection System - Screw Terminal: 1CB54; Cable Clamp: 2CB54


Connection System - Screw Terminal: 1CB54; Cable Clamp: 2CB54

Power Rating1.1 kW
Voltage Rating400 V ac
IP RatingIP20
Current Rating3 A
Overall Length120mm
Overall Width22.5mm
Overall Depth100mm