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Siemens 3RW4027-1BB14 SIRIUS Soft Starter for industrial motors

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Siemens 3RW4027-1BB14

by Siemens

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OverviewThe Siemens 3RW4027-1BB14 SIRIUS Soft Starter offers unparalleled control and efficiency for industrial motor applications. This robust device ensures a smooth, gradual motor start-up and shut-down, significantly minimizing mechanical stress and electrical surges. Operating precisely at 12.5A and 400V AC, it's the perfect solution for safeguarding your valuable equipment, extending its operational life, and boosting overall system integrity. Its compact design and advanced protective capabilities make it a cornerstone for modern automation setups, providing seamless integration and optimized performance across a diverse array of critical operations.Key Features Optimal Motor Safeguarding: Integrated overload protection shields your motors from thermal damage, ensuring extended operational longevity and decreasing maintenance expenses. Smooth & Regulated Actuation: Minimizes inrush current and torque spikes, preventing detrimental voltage sags and mechanical shock to your machinery. Energy Conservation: By lessening current peaks, this soft starter helps reduce energy usage during motor initiation, lowering operational expenditures. Compact & Space-Efficient Design: Its streamlined form factor allows for simple installation within existing control enclosures, maximizing valuable panel area. User-Friendly Customization: Straightforward and intuitive setup with adjustable starting parameters ensures rapid deployment and tailored performance for specific applications. Adaptable Application Versatility: Perfectly suited for various industrial loads, including pumps, fans, and conveyor systems, ensuring dependable operation. Improved System Reliability: Contributes to a more stable electrical network by preventing sudden heavy loads, thereby enhancing overall plant uptime. Technical Specifications Product Type: SIRIUS Soft Starter Part Number: 3RW4027-1BB14 Rated Operating Current: 12.5 Amperes Operating Voltage: 400V AC Control Voltage: 110-230V AC/DC Integrated Protection Features: Motor Overload Protection Compliance: Adheres to strict international standards for motor control and industrial automation, guaranteeing safety and performance. Mounting: DIN rail or screw mounting options for flexible installation. ApplicationsThis soft starter is ideal for a wide range of industrial uses: Industrial Automation: Provides precise and gentle motor starting sequences for critical manufacturing and processing machinery, minimizing downtime. Pumping Systems: Effectively eliminates water hammer and reduces stress on pipes and pumps, extending their service life in water treatment, HVAC, and industrial processes. Ventilation & Fan Systems: Ensures quiet and smooth fan acceleration, reducing mechanical wear and enhancing air quality control in commercial and industrial buildings. Conveyor and Material Handling Systems: Facilitates controlled acceleration and deceleration, preventing product damage, reducing belt wear, and ensuring consistent material flow. Compressors: Reduces the mechanical impact and electrical strain during compressor start-up, contributing to improved efficiency and longevity. Textile Machinery: Offers gentle motor control, crucial for delicate processes and consistent product quality in textile manufacturing. Why Choose This Model? Unrivaled Reliability from SIEMENS: Leverage the trusted quality and engineering excellence of SIEMENS, a global leader in industrial automation. Extend Equipment Lifespan: By drastically reducing mechanical and electrical stress during motor operations, this soft starter significantly prolongs the service life of your valuable machinery. Reduce Operational Costs: Lower energy consumption during start-up and decreased maintenance requirements translate into substantial cost savings over time. Seamless Integration & Ease of Use: Designed for straightforward installation and intuitive configuration, minimizing setup time and complexity for your technical team. Enhanced System Performance: Achieve smoother operations, increased stability, and greater efficiency across your industrial applications. Order NowInvest in the Siemens 3RW4027-1BB14 SIRIUS Soft Starter today and experience enhanced motor control and prolonged equipment life. Contact Palm Parts Solution to place your order or for more information.FAQWhat is the primary function of the Siemens 3RW4027-1BB14 soft starter?Its main purpose is to provide a smooth and controlled start and stop for industrial motors, reducing mechanical stress and electrical surges.What voltage and current does this soft starter operate at?It operates at a precise 12.5 Amperes and 400V AC.Does this model include motor protection features?Yes, it features integrated motor overload protection to safeguard against thermal damage.Can this soft starter be used in various industrial applications?Absolutely, it is versatile and suitable for pumps, fans, conveyors, compressors, and textile machinery, among others.How does this soft starter contribute to energy efficiency?By mitigating current peaks during motor start-up, it helps reduce overall energy consumption.

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$960.00
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PRODUCT DETAILS

Siemens 3RW4027-1BB14

Overview

This is a genuine Siemens component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Siemens catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Siemens automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Siemens equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Siemens platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Product Type: SIRIUS Soft Starter
  • Part Number: 3RW4027-1BB14
  • Rated Operating Current: 12.5 Amperes
  • Operating Voltage: 400V AC
  • Control Voltage: 110-230V AC/DC
  • Integrated Protection Features: Motor Overload Protection
  • Compliance: Adheres to strict international standards for motor control and industrial automation, guaranteeing safety and performance.
  • Mounting: DIN rail or screw mounting options for flexible installation.

Applications

This soft starter is ideal for a wide range of industrial uses:

  • Industrial Automation: Provides precise and gentle motor starting sequences for critical manufacturing and processing machinery, minimizing downtime.
  • Pumping Systems: Effectively eliminates water hammer and reduces stress on pipes and pumps, extending their service life in water treatment, HVAC, and industrial processes.
  • Ventilation & Fan Systems: Ensures quiet and smooth fan acceleration, reducing mechanical wear and enhancing air quality control in commercial and industrial buildings.
  • Conveyor and Material Handling Systems: Facilitates controlled acceleration and deceleration, preventing product damage, reducing belt wear, and ensuring consistent material flow.
  • Compressors: Reduces the mechanical impact and electrical strain during compressor start-up, contributing to improved efficiency and longevity.
  • Textile Machinery: Offers gentle motor control, crucial for delicate processes and consistent product quality in textile manufacturing.

Why Choose the 3RW4027-1BB14?

  • Unrivaled Reliability from SIEMENS: Leverage the trusted quality and engineering excellence of SIEMENS, a global leader in industrial automation.
  • Extend Equipment Lifespan: By drastically reducing mechanical and electrical stress during motor operations, this soft starter significantly prolongs the service life of your valuable machinery.
  • Reduce Operational Costs: Lower energy consumption during start-up and decreased maintenance requirements translate into substantial cost savings over time.
  • Seamless Integration & Ease of Use: Designed for straightforward installation and intuitive configuration, minimizing setup time and complexity for your technical team.
  • Enhanced System Performance: Achieve smoother operations, increased stability, and greater efficiency across your industrial applications.

Availability & Shipping

  • In stock: 3RW4027-1BB14 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 3RW4027-1BB14 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

Its main purpose is to provide a smooth and controlled start and stop for industrial motors, reducing mechanical stress and electrical surges.

Machine down? We ship parts the same day.

New, surplus, and refurbished Siemens inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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