*Image shown is a representation only. Actual product may vary.
Siemens 3RT2018-1BB41
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens 3RT2018-1BB41 is a SIRIUS 3-pole power contactor, expertly designed for precise and efficient management of various AC loads, particularly within demanding motor control systems. This resilient device features a compact S00 frame, making it an excellent choice for installations where space is a critical consideration. Engineered for seamless integration into existing control panels and motor starters, the 3RT2018-1BB41 delivers consistent performance, ensuring operational continuity and extended system lifespan. Its combination of high performance and durable construction establishes it as a vital component in contemporary industrial automation.Key Features Optimized Performance: Rated for a 16 A operational current in AC-3 duty, perfectly suited for controlling motors up to 7.5 kW at 400 V, ensuring efficient power management. Reliable Coil Operation: Equipped with a robust 24 V DC coil, guaranteeing unwavering performance and compatibility with standard control circuits. Enhanced Control Capability: Features one normally open (NO) auxiliary contact, providing versatile options for additional control, status indication, or interlocking functions. Space-Saving Design: Its compact S00 frame size allows for easy integration into tight enclosures, maximizing panel space efficiency. Secure Connections: Utilizes reliable screw terminals for both main and control circuits, facilitating straightforward installation and ensuring secure, long-lasting electrical connections. Exceptional Durability: Boasts a mechanical service life of up to 30 million operating cycles, underpinning its long-term reliability and reducing maintenance requirements. Versatile Mounting: Designed to accommodate both vertical and horizontal installation, offering flexibility in diverse mounting configurations within industrial setups. Technical Specifications Operational Voltage: Supports up to 690 V AC, ensuring broad compatibility with various power systems. Insulation Voltage: Rated at 690 V, providing a high degree of electrical safety and insulation integrity. Surge Voltage Resistance: Withstands surge voltages up to 6 kV, protecting linked equipment from transient overvoltages. Power Loss: Efficient operation with approximately 3 W of power loss under hot operating conditions, contributing to energy savings. Mechanical Service Life: An impressive 30 million operating cycles, highlighting its robust and enduring construction. Ambient Operating Temperature: Functions reliably across a wide temperature range from -25°C to +60°C. Protection Class: IP20 rated, offering fundamental protection against solid objects and ensuring safe operation in typical industrial environments. Dimensions (H x W x D): Compact physical footprint of 77.5 mm x 45 mm x 86.5 mm, ideal for space-constrained applications. Weight: Approximately 0.29 kg, contributing to ease of handling and installation. Applications Industrial Motor Control: Essential for precisely switching and controlling AC motors in a wide range of industrial machinery, including conveyors, pumps, fans, and compressors. Advanced Lighting Systems: Capable of managing and switching large-scale lighting installations in commercial buildings, warehouses, and industrial complexes. Process Heating Equipment: Effectively controls resistive heating elements found in industrial ovens, furnaces, and other temperature-critical process heating applications. Power Factor Correction: Ideal for switching capacitor banks in power factor correction systems, helping to optimize energy efficiency and reduce utility costs. Automation and Robotics: Integrates seamlessly into automated systems and robotic cells for reliable power management of various components. HVAC Systems: Plays a crucial role in controlling motors for fans, compressors, and pumps within heating, ventilation, and air conditioning systems. Why ChooseDesigned by Siemens, a leader in industrial automation, this model offers unmatched reliability and performance. It is built to endure demanding industrial environments, providing consistent and efficient operation. Its compact size and flexible mounting options simplify installation, while its robust construction ensures a long operational life with minimal maintenance. This contactor is a smart choice for enhancing system efficiency and reliability in a variety of applications.Order NowEnhance your industrial automation systems with the Siemens 3RT2018-1BB41 power contactor. Contact us today to place your order or to learn more about how this exceptional product can meet your specific needs.FAQWhat types of motors can the Siemens 3RT2018-1BB41 control?This contactor is ideal for controlling AC motors up to 7.5 kW at 400 V in various industrial applications.What is the benefit of the S00 frame size?The compact S00 frame size allows for easy integration into tight enclosures, maximizing panel space efficiency and making it suitable for installations where space is at a premium.Does this contactor offer auxiliary contacts?Yes, it features one normally open (NO) auxiliary contact, providing versatile options for additional control, status indication, or interlocking functions.What is the expected lifespan of this Siemens contactor?The Siemens 3RT2018-1BB41 boasts an impressive mechanical service life of up to 30 million operating cycles, ensuring long-term reliability and reduced maintenance.Is the Siemens 3RT2018-1BB41 suitable for use in varied temperature conditions?Yes, it functions reliably across a wide ambient operating temperature range from -25°C to +60°C.
USA — Free FedEx Priority & UPS Ground · Worldwide shipping available
For more quantity please contact Customer Service
Fast Shipping
Dispatched quickly on in-stock items via UPS, FedEx & DHL worldwide.
Availability
Thousands of parts in stock — ready for immediate dispatch from Florida.
Payment Flexibility
AMEX, Visa, MasterCard, PayPal, Discover and wire transfer accepted.
Siemens 3RT2018-1BB41
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:
- Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- 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
- Operational Voltage: Supports up to 690 V AC, ensuring broad compatibility with various power systems.
- Insulation Voltage: Rated at 690 V, providing a high degree of electrical safety and insulation integrity.
- Surge Voltage Resistance: Withstands surge voltages up to 6 kV, protecting linked equipment from transient overvoltages.
- Power Loss: Efficient operation with approximately 3 W of power loss under hot operating conditions, contributing to energy savings.
- Mechanical Service Life: An impressive 30 million operating cycles, highlighting its robust and enduring construction.
- Ambient Operating Temperature: Functions reliably across a wide temperature range from -25°C to +60°C.
- Protection Class: IP20 rated, offering fundamental protection against solid objects and ensuring safe operation in typical industrial environments.
- Dimensions (H x W x D): Compact physical footprint of 77.5 mm x 45 mm x 86.5 mm, ideal for space-constrained applications.
- Weight: Approximately 0.29 kg, contributing to ease of handling and installation.
Applications
- Industrial Motor Control: Essential for precisely switching and controlling AC motors in a wide range of industrial machinery, including conveyors, pumps, fans, and compressors.
- Advanced Lighting Systems: Capable of managing and switching large-scale lighting installations in commercial buildings, warehouses, and industrial complexes.
- Process Heating Equipment: Effectively controls resistive heating elements found in industrial ovens, furnaces, and other temperature-critical process heating applications.
- Power Factor Correction: Ideal for switching capacitor banks in power factor correction systems, helping to optimize energy efficiency and reduce utility costs.
- Automation and Robotics: Integrates seamlessly into automated systems and robotic cells for reliable power management of various components.
- HVAC Systems: Plays a crucial role in controlling motors for fans, compressors, and pumps within heating, ventilation, and air conditioning systems.
Why Choose the 3RT2018-1BB41?
Designed by Siemens, a leader in industrial automation, this model offers unmatched reliability and performance. It is built to endure demanding industrial environments, providing consistent and efficient operation. Its compact size and flexible mounting options simplify installation, while its robust construction ensures a long operational life with minimal maintenance. This contactor is a smart choice for enhancing system efficiency and reliability in a variety of applications.
Availability & Shipping
- ▸In stock: 3RT2018-1BB41 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 3RT2018-1BB41 ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Siemens
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.
Related Siemens resources
What Verified Buyers Say
No reviews yet for this product. Be the first verified buyer to share your experience — we email a review invitation after every purchase.
Independent Supplier Notice
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.