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Siemens 3RT2017-1BB42 SIRIUS 3-Pole Contactor with 24V DC coil and screw terminals

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Siemens 3RT2017-1BB42

by Siemens

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OverviewUpgrade your industrial control setups with the Siemens 3RT2017-1BB42 SIRIUS 3-Pole Contactor. This critical component delivers dependable and precise switching for electric motors and various industrial automation tasks. Crafted for a 9A (AC-3) rated current and a 24V DC coil, the 3RT2017-1BB42 expertly manages three-phase motors up to 4kW at 400V. Its compact size, coupled with outstanding endurance and consistent switching, makes it vital for manufacturing, elaborate conveyor systems, efficient HVAC installations, and critical industrial power boards. Choose Siemens for exceptional quality in motor control.Key Features Optimized Motor Management: Rated at 9A (AC-3), ideal for three-phase motors up to 4kW (400V). Robust 3-Pole Design: Engineered for effective and consistent control of three-phase motor applications. Energy-Efficient 24V DC Coil: Ensures stable, low-power functionality, lowering energy use and boosting system efficiency. Integrated Auxiliary Contacts: Includes 1 Normally Open (NO) and 1 Normally Closed (NC) contact for expanded control and improved system integration. Secure Screw Terminal Connections: Provides strong and simple wiring, ensuring connection integrity and easy setup. Compact & Enduring Industrial Construction: Designed for space-saving installations in demanding industrial settings, guaranteeing long-term reliability. Global Standard Compliance: Adheres to international safety and performance benchmarks, including IEC and UL, ensuring broad applicability. Technical Specifications Model: 3RT2017-1BB42 Series: SIRIUS 3RT20 Poles: 3 Main Contact Type: Normally Open (NO) Rated Operational Current (AC-3): 9A Maximum Motor Power (400V AC-3): 4kW Coil Voltage: 24V DC Auxiliary Contacts: 1 NO + 1 NC Mounting: DIN Rail Certifications: CE, UL, RoHS Applications Precise Motor Control: Ensures seamless and highly efficient operation of various three-phase motors. Industrial Automation Equipment: Delivers essential and reliable switching for machinery like pumps, fans, and extensive conveyor setups. HVAC & Building Management: Powers automated regulation of commercial and industrial compressors, heating, and ventilation systems. Automated Power Distribution: Facilitates smart and automated switching within intricate industrial electrical circuits and panels. Process Control Setups: Essential for managing different stages in manufacturing and process lines, ensuring continuity. Renewable Energy Systems: Suitable for integrating and controlling components in solar and wind power installations. Why Choose This Model? Unwavering Dependability: Siemens engineering guarantees consistent and error-free motor switching, extending motor lifespan. Exceptional Adaptability: Its sturdy design and wide application compatibility make it perfect for many industrial environments. Superior Durability: Built from premium materials, this contactor endures demanding industrial conditions, ensuring a long operational life. Enhanced Safety Credentials: Adherence to global certifications (IEC, UL) provides assurance that operations meet stringent safety benchmarks. Optimized Performance: The 24V DC coil offers energy savings and contributes to quiet operation, boosting control circuit efficiency. Effortless Integration: Designed for quick and secure DIN rail mounting, alongside user-friendly wiring. Order NowSecure your Siemens 3RT2017-1BB42 contactor today and elevate your industrial automation systems.FAQWhat is the primary function of the Siemens 3RT2017-1BB42?It is a 3-pole contactor designed for reliable and precise switching of electric motors and other industrial loads, particularly in three-phase applications.What motor power can this contactor handle?It can effectively control three-phase motors up to 4kW at 400V, with a rated operational current of 9A (AC-3).What type of coil does the 3RT2017-1BB42 use?It features an energy-efficient 24V DC coil, ensuring stable and low-power operation.Does it include auxiliary contacts?Yes, it comes with one Normally Open (NO) and one Normally Closed (NC) auxiliary contact for enhanced control functionality.Is this contactor suitable for global use?Absolutely. It is fully compliant with international safety and performance standards, including IEC and UL certifications, ensuring universal applicability.

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PRODUCT DETAILS

Siemens 3RT2017-1BB42

Overview

This is a genuine Siemens component from the SIRIUS Contactors family. 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
  • Engineered to integrate inside SIRIUS Contactors installations

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 for the SIRIUS Contactors family

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

Technical Specifications

  • Model: 3RT2017-1BB42
  • Series: SIRIUS 3RT20
  • Poles: 3
  • Main Contact Type: Normally Open (NO)
  • Rated Operational Current (AC-3): 9A
  • Maximum Motor Power (400V AC-3): 4kW
  • Coil Voltage: 24V DC
  • Auxiliary Contacts: 1 NO + 1 NC
  • Mounting: DIN Rail
  • Certifications: CE, UL, RoHS

Applications

  • Precise Motor Control: Ensures seamless and highly efficient operation of various three-phase motors.
  • Industrial Automation Equipment: Delivers essential and reliable switching for machinery like pumps, fans, and extensive conveyor setups.
  • HVAC & Building Management: Powers automated regulation of commercial and industrial compressors, heating, and ventilation systems.
  • Automated Power Distribution: Facilitates smart and automated switching within intricate industrial electrical circuits and panels.
  • Process Control Setups: Essential for managing different stages in manufacturing and process lines, ensuring continuity.
  • Renewable Energy Systems: Suitable for integrating and controlling components in solar and wind power installations.

Why Choose the 3RT2017-1BB42?

  • Unwavering Dependability: Siemens engineering guarantees consistent and error-free motor switching, extending motor lifespan.
  • Exceptional Adaptability: Its sturdy design and wide application compatibility make it perfect for many industrial environments.
  • Superior Durability: Built from premium materials, this contactor endures demanding industrial conditions, ensuring a long operational life.
  • Enhanced Safety Credentials: Adherence to global certifications (IEC, UL) provides assurance that operations meet stringent safety benchmarks.
  • Optimized Performance: The 24V DC coil offers energy savings and contributes to quiet operation, boosting control circuit efficiency.
  • Effortless Integration: Designed for quick and secure DIN rail mounting, alongside user-friendly wiring.

Availability & Shipping

  • In stock: 3RT2017-1BB42 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 3RT2017-1BB42 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

Yes. Every 3RT2017-1BB42 we ship is sourced through trusted industrial channels and inspected before dispatch. PALM Parts Solution operates as an independent supplier, not an authorized distributor.

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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