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Siemens 3RT2027-2BB40
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens 3RT2027-2BB40 is a high-performance 3-pole contactor, crafted for accurate and dependable switching of electric motors and various loads within demanding industrial automation systems. This compact and efficient device is specifically designed to meet the strict requirements of modern industrial settings, providing enduring performance and exceptional durability. The 3RT2027-2BB40 features a 24V DC control voltage and a 25A rated current, making it an excellent choice for numerous automation uses. Its sturdy build, high switching capability, and straightforward integration ensure consistently reliable operation across different industrial environments. As a component of the esteemed Siemens SIRIUS line, this contactor signifies innovation and reliability. It serves as a fundamental element for secure and efficient control circuits, contributing to optimized operational workflows and prolonged system longevity. Whether you are powering conveyor systems, managing HVAC, or integrating into intricate PLC setups, the Siemens 3RT2027-2BB40 delivers the consistent performance and assurance synonymous with Siemens.Key Features Precision Control Designed for dependable switching and control of electric motors and various industrial loads, featuring a 24V DC control voltage. High Current Handling Boasts a robust 25A rated current and a 3-pole configuration, capable of managing substantial electrical demands. Compact and Efficient Design Optimized for space-saving integration into control panels and automation systems without sacrificing performance. Broad Application Versatility Suitable for controlling motors, industrial lighting, heating elements, and a wide array of other electrical equipment. Exceptional Durability Constructed with high-performance switching mechanisms for minimal contact wear and an extended operational lifespan in challenging conditions. Seamless Integration Fully compatible with Siemens PLCs and control systems, simplifying installation and configuration within existing infrastructures. Safety and Compliance Adheres to international standards, including CE and UL, ensuring safe and compliant operation. Technical Specifications Model: Siemens 3RT2027-2BB40 Type: Contactor Rated Control Voltage: 24V DC Rated Current: 25A Number of Poles: 3 poles Mounting Type: DIN rail mountable Switching Capacity: Suitable for motor control and general switching applications Contact Type: Normally open (NO) contacts Protection Class: IP20 Operating Temperature Range: -20°C to +60°C Dimensions: 45 x 75 x 120 mm Weight: 0.3 kg Compliance: CE, UL Applications Industrial Motor Control Ideal for precise control of motors in various industrial environments, including conveyor systems, pumps, and manufacturing machinery. Building Management Systems Effectively manages lighting, heating, ventilation, and air conditioning (HVAC) systems in commercial and residential structures. Industrial Automation Panels A crucial component within control panels for switching electrical loads in complex industrial automation scenarios. General Load Switching Provides reliable switching for a wide spectrum of large electrical loads across diverse applications, enhancing operational efficiency. Process Control Essential for process control loops requiring reliable ON/OFF switching of equipment such as heaters, pumps, and fans. Why Choose This Model?Unmatched ReliabilityBenefit from Siemens's renowned engineering, ensuring enduring and dependable electrical switching for critical operations.Space OptimizationIts compact form factor is specifically designed for easy integration into crowded control systems, maximizing panel space without compromising performance.High Performance Under LoadEngineered to handle substantial current loads with ease, ensuring efficient and stable operation even in the most demanding environments.Order NowEnhance your industrial automation systems with the Siemens 3RT2027-2BB40 Contactor. Contact us or visit our website to place your order today!FAQWhat is the control voltage for the Siemens 3RT2027-2BB40?The Siemens 3RT2027-2BB40 operates with a 24V DC control voltage.What is the rated current for this contactor?This contactor has a rated current of 25A.Is the Siemens 3RT2027-2BB40 suitable for motor control?Yes, it is perfectly suited for the precise control of motors in various industrial environments.What safety standards does this product comply with?The Siemens 3RT2027-2BB40 adheres to international standards, including CE and UL.Can this contactor be integrated into existing Siemens control systems?Yes, it is fully compatible with Siemens PLCs and control systems, simplifying installation and configuration.
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Siemens 3RT2027-2BB40
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
- Model: Siemens 3RT2027-2BB40
- Type: Contactor
- Rated Control Voltage: 24V DC
- Rated Current: 25A
- Number of Poles: 3 poles
- Mounting Type: DIN rail mountable
- Switching Capacity: Suitable for motor control and general switching applications
- Contact Type: Normally open (NO) contacts
- Protection Class: IP20
- Operating Temperature Range: -20°C to +60°C
- Dimensions: 45 x 75 x 120 mm
- Weight: 0.3 kg
- Compliance: CE, UL
Applications
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Industrial Motor Control
Ideal for precise control of motors in various industrial environments, including conveyor systems, pumps, and manufacturing machinery.
-
Building Management Systems
Effectively manages lighting, heating, ventilation, and air conditioning (HVAC) systems in commercial and residential structures.
-
Industrial Automation Panels
A crucial component within control panels for switching electrical loads in complex industrial automation scenarios.
-
General Load Switching
Provides reliable switching for a wide spectrum of large electrical loads across diverse applications, enhancing operational efficiency.
-
Process Control
Essential for process control loops requiring reliable ON/OFF switching of equipment such as heaters, pumps, and fans.
Why Choose the 3RT2027-2BB40?
Unmatched Reliability
Benefit from Siemens's renowned engineering, ensuring enduring and dependable electrical switching for critical operations.
Space Optimization
Its compact form factor is specifically designed for easy integration into crowded control systems, maximizing panel space without compromising performance.
High Performance Under Load
Engineered to handle substantial current loads with ease, ensuring efficient and stable operation even in the most demanding environments.
Availability & Shipping
- ▸In stock: 3RT2027-2BB40 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 3RT2027-2BB40 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.