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Siemens 3RT2015-1BB42
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens 3RT2015-1BB42 is a high-performance power contactor from the SIRIUS series, built for dependable motor switching in diverse industrial settings. This robust 3-pole contactor is precisely rated for 7 Amperes and 3 kilowatts at 400 Volts (AC-3 duty), making it perfect for numerous motor control applications. It operates flawlessly with a 24 V DC coil, ensuring precise and consistent control. Additionally, it incorporates 1 normally closed (NC) auxiliary contact, offering crucial feedback and interlocking capabilities. Secure screw terminals ensure strong and lasting electrical connections, vital for maintaining operational integrity in demanding industrial environments. Its compact S00 size facilitates flexible integration into various control panel setups, even in space-constrained areas.Key Features Optimized Motor Control: Rated for 7 A and 3 kW at 400 V (AC-3), ensuring efficient motor switching across a range of industrial applications. Precise Coil Operation: Features a sensitive 24 V DC coil, providing reliable and accurate control signals. Integrated Auxiliary Contact: Includes 1 normally closed (NC) auxiliary contact for enhanced system feedback and safety interlocks. Robust Connections: Utilizes durable screw terminals for reliable wiring and connection stability. Space-Saving Design: Compact S00 size allows for easy integration into crowded control panels without compromising performance. Enhanced Contact Reliability: Engineered for superior contact reliability, ensuring consistent operation and extended service life in challenging environments. Global Standards Compliance: Adheres to leading industrial standards including IEC 60947-4-1 and holds CE, UL, and CSA certifications for worldwide applicability. Technical Specifications Product Type Power Contactor Series SIRIUS 3RT2 Model 3RT2015-1BB42 Rated Operational Current (AC-3) 7 A Rated Operational Power (AC-3/400 V) 3 kW Number of Poles 3 Control Voltage 24 V DC Auxiliary Contacts 1 NC Terminal Type Screw terminals Size S00 Standards Compliance IEC 60947-4-1 Certifications CE, UL, CSA Operating Temperature Range -25°C to +60°C Dimensions (W x H x D) 45 mm x 58 mm x 77.5 mm Weight Approximately 0.292 kg Applications Industrial Motor Control: Ideal for starting, stopping, and reversing AC motors in a variety of industrial machinery and systems. HVAC Systems: Essential for managing compressors, fans, and pumps in heating, ventilation, and air conditioning applications. Pumping Stations: Provides reliable switching for pump motors in water treatment, irrigation, and other fluid management systems. Conveyor Systems: Offers dependable control for motors driving conveyor belts in manufacturing and logistics. General Power Switching: Versatile for various power switching tasks requiring a robust and reliable contactor. Automated Production Lines: Integrates smoothly into complex automated systems for precise control of power circuits. Why Choose Unmatched Dependability: As an integral component of the Siemens SIRIUS range, the 3RT2015-1BB42 ensures outstanding operational reliability and an extended service life, minimizing downtime and maintenance expenses. Space-Efficient Design: Its compact S00 form factor enables efficient utilization of panel space, particularly advantageous in applications with restricted mounting options. Optimized Energy Use: The responsive 24 V DC coil operation contributes to improved energy consumption, lowering overall operating costs. Simplified Installation: Engineered with user-friendly screw terminals, making setup and wiring straightforward and significantly reducing installation time. Global Brand Confidence: Siemens, a global leader in industrial automation, guarantees this contactor adheres to rigorous quality standards and delivers unparalleled performance. Comprehensive Safety Features: Equipped with an NC auxiliary contact and compliance with international safety protocols. Order NowEnhance your industrial systems with the Siemens 3RT2015-1BB42 Power Contactor. Contact us today to secure this essential component for reliable and efficient motor control!FAQWhat is the primary function of the Siemens 3RT2015-1BB42?The Siemens 3RT2015-1BB42 is a power contactor designed for reliable and efficient switching of AC motors in industrial automation environments.What are the key electrical ratings of this contactor?It is rated for 7 Amperes and 3 kilowatts at 400 Volts (AC-3 duty) and operates with a 24 V DC control coil.Does the 3RT2015-1BB42 include auxiliary contacts?Yes, it integrates 1 normally closed (NC) auxiliary contact for enhanced system feedback and safety interlocks.What type of terminals does this contactor use?It utilizes secure screw terminals for robust and lasting electrical connections.Is this contactor suitable for applications with limited space?Absolutely, its compact S00 size allows for flexible integration into various control panel configurations, even where space is at a premium.
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Siemens 3RT2015-1BB42
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:
- 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
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Product Type
Power Contactor
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Series
SIRIUS 3RT2
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Model
3RT2015-1BB42
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Rated Operational Current (AC-3)
7 A
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Rated Operational Power (AC-3/400 V)
3 kW
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Number of Poles
3
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Control Voltage
24 V DC
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Auxiliary Contacts
1 NC
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Terminal Type
Screw terminals
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Size
S00
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Standards Compliance
IEC 60947-4-1
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Certifications
CE, UL, CSA
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Operating Temperature Range
-25°C to +60°C
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Dimensions (W x H x D)
45 mm x 58 mm x 77.5 mm
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Weight
Approximately 0.292 kg
Applications
- Industrial Motor Control: Ideal for starting, stopping, and reversing AC motors in a variety of industrial machinery and systems.
- HVAC Systems: Essential for managing compressors, fans, and pumps in heating, ventilation, and air conditioning applications.
- Pumping Stations: Provides reliable switching for pump motors in water treatment, irrigation, and other fluid management systems.
- Conveyor Systems: Offers dependable control for motors driving conveyor belts in manufacturing and logistics.
- General Power Switching: Versatile for various power switching tasks requiring a robust and reliable contactor.
- Automated Production Lines: Integrates smoothly into complex automated systems for precise control of power circuits.
Why Choose the 3RT2015-1BB42?
- Unmatched Dependability: As an integral component of the Siemens SIRIUS range, the 3RT2015-1BB42 ensures outstanding operational reliability and an extended service life, minimizing downtime and maintenance expenses.
- Space-Efficient Design: Its compact S00 form factor enables efficient utilization of panel space, particularly advantageous in applications with restricted mounting options.
- Optimized Energy Use: The responsive 24 V DC coil operation contributes to improved energy consumption, lowering overall operating costs.
- Simplified Installation: Engineered with user-friendly screw terminals, making setup and wiring straightforward and significantly reducing installation time.
- Global Brand Confidence: Siemens, a global leader in industrial automation, guarantees this contactor adheres to rigorous quality standards and delivers unparalleled performance.
- Comprehensive Safety Features: Equipped with an NC auxiliary contact and compliance with international safety protocols.
Availability & Shipping
- ▸In stock: 3RT2015-1BB42 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 3RT2015-1BB42 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.