Siemens 3RW52 Soft Starter 480V ac, 132 kW, 3 Phase

View all Motor Starters

Subtotal (1 unit)*

£1,825.58

(exc. VAT)

£2,190.70

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 30 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£1,825.58

*price indicative

Shop Siemens SIRIUS
Discover our Siemens SIRIUS products. Command, Control, Monitor and start your motors the Hybrid way.
Find out more
RS Stock No.:
185-9697
Mfr. Part No.:
3RW5235-6AC14
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Product Type

Soft Starter

Power Rating

132kW

Number of Phases

3

IP Rating

IP00

Mount Type

Screw Fixing

Maximum Supply Voltage

480V ac

Overall Length

185mm

Standards/Approvals

CE/IEC 60947-4-2, IEC 60529, UL, IEC 81346-2, CSA, EAC, IEC 60721, CCC

Overall Width

203mm

Overall Depth

305.6 mm

Series

3RW52

COO (Country of Origin):
CZ
SIRIUS soft starter 200-480 V 143 A, 110-250 V AC Screw terminals Analogue output

SIRIUS 3RW52 Soft Starter


Soft starter SIRIUS 3RW52 General Performance for simple applications for soft starting and stopping 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, saves energy and ensures low heat dissipation in the control cabinet. Intelligent monitoring functions protect the soft starter against overheating and the motor against overload. In addition, you can limit the current during startup to a settable maximum value.

Thanks to 3-phase control, particularly suitable for high motor outputs and inside-delta circuits. The innovative Soft Torque function ensures that the motor is started gently. With the integrated remote reset, you can quickly and easily clear faults from a remote location. Worldwide approvals (e.g. IEC and UL/CSA).

The General Performance 3RW52 soft starters are available for supply systems up to 600 V in a wide performance range up to 560 kW with 24 V or 110-250 V supply voltages and all with both screw and spring-type terminals. Different device versions are available for analog output and thermistor motor protection.

Optional plug-in communication modules allow connection via PROFINET, PROFIBUS and Modbus TCP. Various HMI modules are available for installation in the device or the control cabinet door.

SIRIUS 3RW5 soft starters - As flexible as your tasks.

Features and Benefits


  • Simple and fast commissioning

  • Parameterization using potentiometers

  • Wide range for control supply and main voltage

  • Three-phase controlled for optimal motor start

  • Parameterization with rotary potentiometer

  • A wide range of communications interfaces (PROFINET, PROFIBUS, EtherNet/IP, Modbus)

    • Related links