Siemens 90 kW Soft Starter, 460 V ac, 3 Phase, IP00, IP20

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.

Note

Depth dimension quoted is overall depth for each unit

Siemens SIRIUS Soft Starter, 90kW, 162A - 3RW40 Series - 3RW4056-6BB44

This Siemens SIRIUS soft starter features a 2-phase control that's ideal for starting up and winding down 3-phase asynchronous motors. It preserves minimum current values through startup, avoiding sudden surges and peaks to deliver steadier and more efficient operation. Integrated diagnostic functions and adjustable trip classes protect against motor overload, so you can be confident that this starter will function safely and effectively. Its compact design (with 120mm width) and simple screw mounting let you fit it into small spaces. Thanks to a rotatable design, you can choose the placement that suits you on a vertical surface.

• Control voltage of 230V AC (alternating current) and current rating of 162A for heavy-duty use
• Intrinsic device protection ensures smoother operation
• Option to set a maximum value during start-up if you need to limit the current
• Ideal for conveyor systems, with condition and fault monitoring that ensures systems run as smoothly as possible

What diagnostic messaging does this device provide?

This starter uses LED (light-emitting diode) technology to convey messages about power failure, phase failure and thermal overload, as well as loss of load and inadmissible tripping times. This high level of fault messaging enhances safety and efficiency.