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SIEMENS 6SL3120-2TE21-8AA3
by Siemens
Read verified buyer reviews ↓OverviewThe SIEMENS 6SL3120-2TE21-8AA3 is a robust power module, meticulously engineered to meet the demanding requirements of SIMATIC S7-1200 Programmable Logic Controller (PLC) systems. This advanced power supply unit (PSU) guarantees consistent, stable, and highly dependable power delivery, which is crucial for maintaining continuous operation and optimal performance of your S7-1200 controllers in various industrial settings. Meticulously designed, it seamlessly integrates into existing setups, providing the fundamental power stability necessary for intricate automation processes.Key Features Dedicated SIMATIC S7-1200 Compatibility: Flawlessly integrates with the SIMATIC S7-1200 PLC series for peak performance. Unwavering Power Stability: Provides a consistent and regulated output voltage, essential for sensitive industrial electronics. Comprehensive Protection: Equipped with advanced safeguards against overvoltage, overload, and short-circuit conditions. Industrial-Grade Durability: Constructed to endure harsh industrial environments, ensuring extended longevity and dependable operation. Compact & Efficient Design: Maximizes panel space with a streamlined form factor, facilitating straightforward integration. Enhanced System Uptime: Minimizes the potential for downtime by offering a reliable power source. Flexible Mounting Options: Supports both DIN rail and direct panel mounting for versatile installation. Technical Specifications Series: SIMATIC S7-1200 Product Type: Power Supply Unit (PSU) Input Voltage: Supports standard industrial input voltages for global compatibility. Output Voltage: Precisely optimized for optimal SIMATIC S7-1200 PLC operation. Power Output: Designed to satisfy the specific power requirements of automation system components. Protection Features: Includes overvoltage, overload, and short-circuit protection for equipment safety. Mounting Type: Versatile DIN rail or panel-mounted installation. Operating Temperature: Engineered for reliable operation across a broad spectrum of industrial temperatures. Applications PLC Control Systems: Delivers essential, reliable power for all SIMATIC S7-1200 based control systems. Manufacturing Automation: Ensures stable and continuous operation of automated processes in factory settings. Process Control Industries: Powers crucial systems in sectors such as chemical processing, automotive manufacturing, and energy production. Industrial Machinery: Supports the power demands of diverse machinery, including robotics, CNC machines, and conveyor systems. Building Management Systems: Provides consistent power to intelligent building automation and control solutions. Water and Wastewater Treatment: Critical for powering control elements in complex water infrastructure. Why Choose This Model?Unmatched Reliability: Manufactured by SIEMENS, a global leader in industrial automation, guaranteeing superior quality and operational stability.Optimized for S7-1200: Specifically engineered to meet the precise power requirements of your SIMATIC S7-1200 PLCs, ensuring seamless compatibility and performance.Safeguard Your Investment: Integrated protection features extend the lifespan of your valuable automation equipment by preventing power-related damage.Reduce Operational Downtime: A consistent and protected power supply means fewer interruptions and more productive operational hours for your facility.Ease of Integration: Its compact design and versatile mounting options allow for straightforward installation into new or existing control panels.Long-Term Value: Investing in a SIEMENS power module means choosing a durable component that provides consistent performance and peace of mind.Order NowElevate the reliability and efficiency of your SIMATIC S7-1200 PLC systems with the SIEMENS 6SL3120-2TE21-8AA3 Power Module. This vital component ensures that your critical automation processes run smoothly, without interruption. Do not compromise on power stability; select the proven performance of SIEMENS.FAQWhat is the primary function of the SIEMENS 6SL3120-2TE21-8AA3?The SIEMENS 6SL3120-2TE21-8AA3 is a power module designed to provide a stable and reliable power supply to SIMATIC S7-1200 Programmable Logic Controllers (PLCs).Is this power module compatible with all SIMATIC S7-1200 models?Yes, it is specifically engineered for flawless integration with the entire SIMATIC S7-1200 PLC series.What protection features does this unit offer?This power module includes advanced safeguards against overvoltage, overload, and short-circuit conditions to protect connected equipment.Can this power module be used in harsh industrial environments?Absolutely; it is constructed with industrial-grade durability to withstand demanding industrial conditions.What are the mounting options available for this power module?It supports flexible installation options, including both DIN rail and direct panel mounting.How does this module contribute to system uptime?By providing a dependable and consistent power source, it minimizes the risk of downtime, enhancing overall system uptime.
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SIEMENS 6SL3120-2TE21-8AA3
Overview
This is a genuine Siemens component from the Servo Drives & Motion Control 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 Servo Drives & Motion Control 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 Servo Drives & Motion Control family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Series: SIMATIC S7-1200
- Product Type: Power Supply Unit (PSU)
- Input Voltage: Supports standard industrial input voltages for global compatibility.
- Output Voltage: Precisely optimized for optimal SIMATIC S7-1200 PLC operation.
- Power Output: Designed to satisfy the specific power requirements of automation system components.
- Protection Features: Includes overvoltage, overload, and short-circuit protection for equipment safety.
- Mounting Type: Versatile DIN rail or panel-mounted installation.
- Operating Temperature: Engineered for reliable operation across a broad spectrum of industrial temperatures.
Applications
- PLC Control Systems: Delivers essential, reliable power for all SIMATIC S7-1200 based control systems.
- Manufacturing Automation: Ensures stable and continuous operation of automated processes in factory settings.
- Process Control Industries: Powers crucial systems in sectors such as chemical processing, automotive manufacturing, and energy production.
- Industrial Machinery: Supports the power demands of diverse machinery, including robotics, CNC machines, and conveyor systems.
- Building Management Systems: Provides consistent power to intelligent building automation and control solutions.
- Water and Wastewater Treatment: Critical for powering control elements in complex water infrastructure.
Why Choose the 6SL3120-2TE21-8AA3?
Unmatched Reliability: Manufactured by SIEMENS, a global leader in industrial automation, guaranteeing superior quality and operational stability.
Optimized for S7-1200: Specifically engineered to meet the precise power requirements of your SIMATIC S7-1200 PLCs, ensuring seamless compatibility and performance.
Safeguard Your Investment: Integrated protection features extend the lifespan of your valuable automation equipment by preventing power-related damage.
Reduce Operational Downtime: A consistent and protected power supply means fewer interruptions and more productive operational hours for your facility.
Ease of Integration: Its compact design and versatile mounting options allow for straightforward installation into new or existing control panels.
Long-Term Value: Investing in a SIEMENS power module means choosing a durable component that provides consistent performance and peace of mind.
Availability & Shipping
- ▸In stock: 6SL3120-2TE21-8AA3 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 6SL3120-2TE21-8AA3 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.
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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.