The Siemens 3RW3047-1BB14 is a SIRIUS 3RW30 series soft starter designed for controlled starting of three-phase motors in industrial applications. It belongs to the Standard Duty range and is specified in the BB14 variant.
Soft starters help provide a smoother motor start by controlling the voltage applied to the motor during acceleration. This can help reduce starting current peaks and mechanical stress compared with direct-on-line starting.
The 3RW3047-1BB14 is part of the Siemens SIRIUS 3RW30 soft-starter family, intended for straightforward motor-starting applications.
The 3RW30 series is suitable for applications where controlled motor acceleration is required without the need for an extensive range of advanced motor-control functions.
Typical applications include:
The exact suitability should be determined from the motor rating, starting conditions and application duty.
The product is specified as Standard Duty, making it suitable for conventional motor-starting applications where controlled acceleration is required.
Standard-duty soft starters can be used where the connected motor and load have compatible starting characteristics and the required number of starts and operating conditions are within the product's permissible limits.
Typical applications include:
The BB14 designation identifies the specific version of the 3RW3047-1BB14.
When selecting or replacing a soft starter, the complete Siemens article number should be matched to ensure compatibility with the intended motor-control application.
The required motor voltage, current, control supply and operating conditions should be checked before installation.
The primary purpose of the 3RW3047-1BB14 is to provide a controlled motor starting process.
Compared with direct-on-line starting, a suitable soft starter can help reduce:
The actual starting performance depends on the motor, connected load and configured operating parameters.
The 3RW3047-1BB14 can be incorporated into motor-control panels together with compatible electrical and automation components.
A typical installation may include:
Protection Device → Soft Starter → Motor
Additional equipment can include:
This makes the soft starter suitable for both standalone motor-control applications and larger automated systems.
The Siemens 3RW3047-1BB14 can be used in various industrial applications, including:
For related Siemens industrial electrical and automation products, customers can explore the Siemens product range at SB Smart.
The 3RW3047-1BB14 is suitable for OEM machine manufacturers, electrical panel builders, automation integrators and industrial maintenance professionals.
Its SIRIUS 3RW30 platform provides a practical soft-starting solution for standard industrial motor applications where controlled acceleration is required.
The Siemens 3RW3047-1BB14 provides a practical standard-duty soft-starting solution within the SIRIUS 3RW30 family.
It is suitable for industrial applications where a motor needs controlled acceleration rather than an immediate direct-on-line start. This can help reduce starting stresses on the motor, mechanical transmission and connected equipment.
For OEMs, panel builders and automation integrators, the SIRIUS 3RW30 platform offers a straightforward approach to incorporating soft starting into machine-control systems.
SB Smart supplies Siemens industrial electrical and automation products across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and major cities across India.
Major delivery locations include:
It is a Siemens SIRIUS 3RW30 series soft starter in the Standard Duty, BB14 variant.
It is used for controlled starting of compatible three-phase motors in industrial applications.
It indicates a configuration intended for standard motor-starting applications within the permissible operating conditions of the soft starter.
BB14 identifies the specific configuration of the 3RW3047-1BB14 article. The complete article number should be used when selecting or replacing the product.
A soft starter can help reduce starting-current peaks, mechanical shock and sudden torque during motor acceleration.
It can be used in pumps, fans, conveyors, compressors, production machinery, packaging equipment and other compatible industrial motor applications.
Yes. It can be incorporated into suitable motor-control systems with PLCs, contactors, protection devices and other automation components, subject to the required configuration.
Yes. It is suitable for OEM machine builders, panel builders and automation integrators.
The motor rating, supply conditions, control requirements, starting duty, load characteristics and protection/coordination requirements should be checked before installation.
You can explore the Siemens product range at SB Smart for Siemens SIRIUS soft starters, motor-control products and other industrial automation equipment.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RW30 |
| Model Number | 3RW3047-1BB14 |
| Product Type | Soft Starter |
| Duty Type | Standard Duty |
| Rated Power | 55 kW @ 400 V |
| Rated Current | ~98–106 A |
| Supply Voltage | 200–480 V AC |
| Control Voltage | 110–230 V AC/DC |
| Phase | 3 Phase |
| Control Method | 2-phase controlled |
| Bypass | Integrated |
| Mounting | DIN rail / screw terminals |
| Application | Motor starting control |
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