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Siemens 3RT2028-1BB40
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens 3RT2028-1BB40 SIRIUS Contactor is a crucial element for robust industrial motor management and automation. Designed for precision and longevity, this high-performance contactor ensures dependable switching and regulation of electric motors and various industrial loads. Featuring a powerful 40A rated current and a responsive 24V DC coil, it precisely manages AC-3 loads up to 18.5 kW at 400V. This makes it an excellent choice for numerous applications, from direct motor starters to sophisticated industrial control panels, guaranteeing continuous operation and effortless integration into existing setups. Its advanced design prioritizes both efficiency and resilience, ensuring consistent performance even in challenging industrial environments.Key Features High Current Handling Rated for 40A, this contactor is ideally suited for managing the power demands of a wide range of industrial motors and heavy-duty electrical loads, ensuring stable and secure operation. Optimized DC Coil The 24V DC coil provides exceptionally consistent and accurate operation, making it an indispensable component for advanced automation control systems where responsiveness and reliability are critical. Superior AC-3 Load Capacity Capable of supporting motors up to 18.5 kW at 400V AC, it delivers powerful performance for inductive loads, extending the operational life of connected equipment. Compact & Adaptable Design Its intelligent and space-saving design permits easy integration into standard control panels and motor starters, maximizing valuable cabinet space and simplifying installation. Unwavering Dependability Constructed with premium materials and strict manufacturing standards, this contactor promises an extended operational life and outstanding switching reliability, minimizing downtime and maintenance expenses. International Compliance Fully compliant with a comprehensive set of international industrial automation standards, guaranteeing global applicability and adherence to safety and performance benchmarks. Technical Specifications Product Type: SIRIUS Contactor Part Number: 3RT2028-1BB40 Rated Current: 40A Coil Voltage: 24V DC AC-3 Load Capacity: Up to 18.5 kW (400V AC) Mounting Type: DIN rail mounting Compliance: Meets international industrial automation standards Applications Industrial Motor Control Serves as a vital component for switching and safeguarding electric motors across diverse industrial machinery, ensuring smooth and safe operations. Advanced Automation Systems Integrates seamlessly into complex industrial automation and process control configurations, providing responsive and precise control over automated processes. Efficient Power Distribution Plays a significant role in industrial control panels, offering reliable and regulated power switching for various electrical circuits. Heating, Ventilation, and Air Conditioning (HVAC) Ideal for controlling large HVAC systems in commercial and industrial buildings, ensuring optimal environmental regulation. Pumping and Conveying Systems Essential for the secure and efficient operation of pumps and conveyor belts in manufacturing, logistics, and resource management sectors. Why Choose This Model? Trusted Brand Siemens is a globally recognized leader in industrial automation, embodying innovation, quality, and reliability. Investing in a Siemens product signifies investing in proven performance. Optimized Performance The 3RT2028-1BB40 is specifically engineered to deliver consistent, high-performance switching for demanding industrial loads, contributing to enhanced operational efficiency and reduced energy consumption. Enhanced Safety Designed to comply with rigorous international safety standards, this contactor offers a secure and dependable solution for managing high-power electrical circuits, protecting both equipment and personnel. Long-Term Durability Built to endure harsh industrial environments, its robust construction ensures extended reliability and minimal maintenance requirements, providing significant long-term value. Order NowUpgrade your industrial control systems with the Siemens 3RT2028-1BB40 SIRIUS Contactor. Contact us today to place your order and ensure peak performance and reliability for your operations.FAQWhat is the primary function of the Siemens 3RT2028-1BB40 contactor?Its main purpose is to precisely switch and control electric motors and other industrial electrical loads.What is the rated current for this Siemens contactor?The contactor is rated for a 40A current.What type of coil voltage does the 3RT2028-1BB40 use?It utilizes a 24V DC coil for stable and precise operation.Can this contactor handle heavy-duty loads?Yes, it is designed for AC-3 loads up to 18.5 kW at 400V, making it suitable for demanding industrial applications.Is the Siemens 3RT2028-1BB40 compliant with international standards?Absolutely, it fully complies with various international industrial automation standards, ensuring global applicability and safety.
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Siemens 3RT2028-1BB40
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
- Product Type: SIRIUS Contactor
- Part Number: 3RT2028-1BB40
- Rated Current: 40A
- Coil Voltage: 24V DC
- AC-3 Load Capacity: Up to 18.5 kW (400V AC)
- Mounting Type: DIN rail mounting
- Compliance: Meets international industrial automation standards
Applications
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Industrial Motor Control
Serves as a vital component for switching and safeguarding electric motors across diverse industrial machinery, ensuring smooth and safe operations.
-
Advanced Automation Systems
Integrates seamlessly into complex industrial automation and process control configurations, providing responsive and precise control over automated processes.
-
Efficient Power Distribution
Plays a significant role in industrial control panels, offering reliable and regulated power switching for various electrical circuits.
-
Heating, Ventilation, and Air Conditioning (HVAC)
Ideal for controlling large HVAC systems in commercial and industrial buildings, ensuring optimal environmental regulation.
-
Pumping and Conveying Systems
Essential for the secure and efficient operation of pumps and conveyor belts in manufacturing, logistics, and resource management sectors.
Why Choose the 3RT2028-1BB40?
-
Trusted Brand
Siemens is a globally recognized leader in industrial automation, embodying innovation, quality, and reliability. Investing in a Siemens product signifies investing in proven performance.
-
Optimized Performance
The 3RT2028-1BB40 is specifically engineered to deliver consistent, high-performance switching for demanding industrial loads, contributing to enhanced operational efficiency and reduced energy consumption.
-
Enhanced Safety
Designed to comply with rigorous international safety standards, this contactor offers a secure and dependable solution for managing high-power electrical circuits, protecting both equipment and personnel.
-
Long-Term Durability
Built to endure harsh industrial environments, its robust construction ensures extended reliability and minimal maintenance requirements, providing significant long-term value.
Availability & Shipping
- ▸In stock: 3RT2028-1BB40 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 3RT2028-1BB40 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
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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.