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Siemens 3RW4036-1BB14 SIRIUS Soft Starter S2, industrial motor control device

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Siemens 3RW4036-1BB14

by Siemens

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OverviewThe Siemens 3RW4036-1BB14 SIRIUS Soft Starter S2 represents a sophisticated solution for managing the power-up and power-down sequences of three-phase asynchronous motors. This device effectively diminishes initial current surges and eliminates mechanical stress, thereby extending the longevity of motors and connected equipment. With its robust construction and intelligent control features, the 3RW4036-1BB14 guarantees a smooth and regulated acceleration and deceleration process, shielding industrial systems from the demands of direct-on-line operation. It is rated for a 45-amp current and ideally supports 22kW motors at 400V, operating flawlessly within a 200-480V AC main voltage range. Its compact form and easy-to-use screw terminal connections further elevate its utility, making it a vital component for contemporary industrial automation setups.Key Features 45A Current Rating: Delivers ample power management for a diverse array of medium-power industrial motors, ensuring stable performance. 22kW Motor Capacity (at 400V AC): Expertly manages motors up to 22 kilowatts, providing precise control during acceleration and deceleration. Broad 200-480V AC Main Voltage Compatibility: Adapts easily to various global industrial power infrastructures, offering flexible application. Versatile 110-230V AC/DC Control Voltage: Ensures seamless compatibility and integration with numerous control systems and automation architectures. Integrated Soft Start and Stop Functionality: Significantly minimizes mechanical wear, prevents water hammer effects, and reduces electrical strain on components. Secure Screw Terminal Connections: Facilitates rapid, dependable, and simple wiring, reducing installation time and maximizing operational security. Enhanced Motor Preservation: Guards motors against detrimental voltage variations and current peaks, leading to increased service life and reduced maintenance needs. Technical Specifications Product Type: SIRIUS Soft Starter S2 Part Number: 3RW4036-1BB14 Rated Operating Current: 45A Motor Power (at 400V AC): 22kW Main Circuit Voltage: 200-480V AC Control Supply Voltage: 110-230V AC/DC Connection Type: Screw Terminals Operating Temperature Range: Up to 40°C Compliance: Adheres to rigorous international industrial automation standards, ensuring global applicability and safety requirements are met. Applications Pumps & Fans: Perfect for regulating fluid dynamics to avoid damaging water hammer and lessen mechanical strain on impellers and bearings. Conveyor & Material Handling Systems: Ensures smooth, jolt-free starts and stops, safeguarding transported goods and extending the life of conveyor belts and gearboxes. Compressors & Industrial Air Systems: Reduces peak loads during startup, decreasing stress on mechanical components and the power supply. Mixers & Agitators: Provides controlled acceleration, preventing splashing and ensuring uniform mixing processes while protecting motor windings. Woodworking Machinery: Facilitates gentle acceleration of saws and other tools, improving operator safety and reducing wear on blades and drive components. Textile Machinery: Ensures smooth machine operation, minimizing fabric damage and extending the lifespan of delicate processing equipment. Why Choose?Unmatched ReliabilitySiemens's renowned engineering guarantees a durable and dependable product that performs consistently in demanding industrial environments.Significant Cost SavingsBy reducing inrush currents and mechanical wear, this soft starter extends motor lifespan and minimizes maintenance and repair expenditures.Energy EfficiencyOptimized motor start-up and shut-down processes contribute to lower energy consumption and reduced operational costs over time.Enhanced System PerformanceThe smooth acceleration and deceleration protect mechanical components, leading to fewer breakdowns and greater productivity.Easy Integration & InstallationDesigned for straightforward wiring and compatibility, simplifying setup.Order NowExperience the benefits of precise motor control and extended equipment life. Purchase the Siemens 3RW4036-1BB14 SIRIUS Soft Starter S2 today!FAQWhat is the primary function of the Siemens 3RW4036-1BB14?Its primary function is to optimize the starting and stopping of three-phase asynchronous motors, reducing inrush currents and mechanical shocks.What motor sizes can this soft starter accommodate?It effectively supports motors up to 22kW at 400V AC.Is this device compatible with various power systems?Yes, it features broad compatibility with 200-480V AC main voltages and 110-230V AC/DC control voltages.

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PRODUCT DETAILS

Siemens 3RW4036-1BB14

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 S2
  • Part Number: 3RW4036-1BB14
  • Rated Operating Current: 45A
  • Motor Power (at 400V AC): 22kW
  • Main Circuit Voltage: 200-480V AC
  • Control Supply Voltage: 110-230V AC/DC
  • Connection Type: Screw Terminals
  • Operating Temperature Range: Up to 40°C
  • Compliance: Adheres to rigorous international industrial automation standards, ensuring global applicability and safety requirements are met.

Applications

  • Pumps & Fans: Perfect for regulating fluid dynamics to avoid damaging water hammer and lessen mechanical strain on impellers and bearings.
  • Conveyor & Material Handling Systems: Ensures smooth, jolt-free starts and stops, safeguarding transported goods and extending the life of conveyor belts and gearboxes.
  • Compressors & Industrial Air Systems: Reduces peak loads during startup, decreasing stress on mechanical components and the power supply.
  • Mixers & Agitators: Provides controlled acceleration, preventing splashing and ensuring uniform mixing processes while protecting motor windings.
  • Woodworking Machinery: Facilitates gentle acceleration of saws and other tools, improving operator safety and reducing wear on blades and drive components.
  • Textile Machinery: Ensures smooth machine operation, minimizing fabric damage and extending the lifespan of delicate processing equipment.

Why Choose the 3RW4036-1BB14?

Unmatched Reliability

Siemens's renowned engineering guarantees a durable and dependable product that performs consistently in demanding industrial environments.

Significant Cost Savings

By reducing inrush currents and mechanical wear, this soft starter extends motor lifespan and minimizes maintenance and repair expenditures.

Energy Efficiency

Optimized motor start-up and shut-down processes contribute to lower energy consumption and reduced operational costs over time.

Enhanced System Performance

The smooth acceleration and deceleration protect mechanical components, leading to fewer breakdowns and greater productivity.

Easy Integration & Installation

Designed for straightforward wiring and compatibility, simplifying setup.

Availability & Shipping

  • In stock: 3RW4036-1BB14 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 3RW4036-1BB14 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

Its primary function is to optimize the starting and stopping of three-phase asynchronous motors, reducing inrush currents and mechanical shocks.

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.

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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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