Siemens 3 Phase Soft Starter - 106 A Current Rating, 3RW40 Series, 55 kW Power Rating, 200 → 480 V ac Supply

  • RS-stocknr. 420-479
  • Fabrikantnummer 3RW4047-1BB14
  • Fabrikant Siemens
Wetgeving en compliance
Land van herkomst: DE

Sirius 3RW40

Soft starter SIRIUS 3RW40 for standard applications for the soft starting and ramp-down of three-phase asynchronous motors. The integrated bypass allows a very compact construction 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.

Features and Benefits:

  • 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

  • Maintenance free switching and extremely easy handling

With the integrated remote reset, you can quickly and easily clear faults from a remote location. Worldwide approvals (e.g. IEC and UL/CSA), also for applications in hazardous areas (ATEX or IEC Ex).

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. The optional fan permits an even more compact design in the control cabinet. Simple, efficient and always up to date - SIRIUS modular system.


Depth dimension quoted is overall depth for each unit

Kenmerk Waarde
Phase 3
Supply Voltage 200 → 480 V ac
Current Rating 106 A
Voltage Rating 480 V ac
Control Voltage 110 → 230 V ac/dc
Power Rating 55 kW
IP Rating IP00
Overall Length 188mm
Overall Width 70mm
Overall Depth 170mm
Minimum Operating Temperature -25°C
Maximum Operating Temperature +60°C
Series 3RW40
3 op voorraad - levertijd is 1 werkdag(en) (EU-voorraad)
2 op voorraad - levertijd is 1 werkdag(en) (UK-voorraad)
Prijs Each
(excl. BTW)
(incl. BTW)
Aantal stuks
Per stuk
1 +
€ 912,99
Related Products
2-phase soft start and soft stop of 3-phase ...
2-phase soft start and soft stop of 3-phase motors up to 4 KW4 potentiometer for setting of starting torque, deceleration torque, soft start /-stop3 LEDs for status indicationReset button on frontConnection facility for external reset buttonRelay indicator output for operationGalvanic ...
Soft starter SIRIUS 3RW52 General Performance for simple ...
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 ...
The Siemens SIRIUS range 3RW3 series soft starter ...
The Siemens SIRIUS range 3RW3 series soft starter with voltage rating 110 to 230V ac and current rating 106A.The relay performs various functions such as Intrinsic device protection, motor overload protection and evaluation of thermistor motor protection. Degree of pollution ...