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Siemens 6SL3255-0AA00-5AA0
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens 6SL3255-0AA00-5AA0 CU250S-2 Control Unit serves as the intelligent core for your SINAMICS G120 modular drive systems. This advanced unit delivers precision and dependability across a wide range of industrial applications, ensuring dynamic motor operation and smooth efficiency. Crafted for demanding environments, it incorporates modern safety features and a highly adaptable modular design, making it an essential component for contemporary industrial automation. This unit excels at managing intricate drive tasks, providing extensive command over motor speed, torque, and position. Its sturdy construction and adherence to rigorous industrial specifications guarantee sustained performance and minimal interruptions. Whether upgrading existing setups or constructing new high-performance machinery, the 6SL3255-0AA00-5AA0 offers a powerful and flexible solution, supported by Siemens's renowned engineering.Key Features Integrated Safety Functions: Offers STO (Safe Torque Off), SS1 (Safe Stop 1), SLS (Safely Limited Speed), SBC (Safe Brake Control), and SDI (Safe Direction) up to SIL 2 / PL d for maximum machine and personnel protection. Modular SINAMICS G120 Compatibility: Specifically engineered for the SINAMICS G120 modular drive system, ensuring effortless integration with PM240-2 and PM250 power modules. Multi-Protocol Communication: Supports various industrial communication protocols including PROFIBUS, PROFINET, USS, and Modbus RTU, facilitating versatile system connectivity. High-Performance Vector Control: Provides accurate and dynamic motor regulation, enabling optimal performance for demanding applications requiring precision and responsiveness. Flexible System Integration: Presents a modular and scalable design, allowing for simple expansion and adaptation to changing application needs. Streamlined Parameterization: Easy setup and configuration through STARTER or TIA Portal (Startdrive) software, simplifying commissioning and maintenance. Robust Industrial Design: Built for reliability in industrial settings, including internal cooling and sturdy mounting options for control cabinets. Technical Specifications Siemens Code: 6SL3255-0AA00-5AA0 Voltage Supply: 24 V DC (external) Interfaces: 2 x PROFIBUS / PROFINET, USB for commissioning, Encoder inputs (incremental/HTL) Safety Functions: STO, SS1, SLS, SBC, SDI (up to SIL 2 / PL d) Cooling: Internal (with attached heatsink) Ambient Temperature: -10 °C to +60 °C Mounting: Control cabinet mounting Standards: IEC 61800-5-2, CE, UL, cUL Applications Conveyor Systems: Delivers precise speed and torque regulation for efficient material handling and logistics. Textile and Packaging Machines: Ensures high accuracy and synchronization for continuous and intermittent motion processes. Pumps, Fans, and Compressors: Optimizes energy usage and enhances operational efficiency through variable speed regulation. Industrial Automation and Motion Control Systems: Acts as a central control element for complex automation tasks and multi-axis motion management. OEM Machinery and Process Automation: Ideal for integration into custom machinery and process lines requiring robust and adaptable drive control. Material Processing and Handling: Suitable for tasks involving cutting, winding, and positioning where steady and responsive motor control is essential. Why ChooseThis unit offers superior machine and operator safety through its integrated Safety Integrated functions, minimizing risks and ensuring adherence to international safety standards. With support for multiple communication protocols, its unmatched flexibility and connectivity allow seamless integration into diverse industrial networks, simplifying system architecture. High-performance vector control and precise motor management contribute to optimized performance and efficiency.Order NowFor current pricing and availability of the Siemens 6SL3255-0AA00-5AA0 CU250S-2 Control Unit, please contact us directly. Our team is ready to assist you with your industrial automation needs and provide a tailored solution.FAQWhat is the primary function of the Siemens 6SL3255-0AA00-5AA0?The Siemens 6SL3255-0AA00-5AA0 is a CU250S-2 Control Unit designed to serve as the intelligent core for SINAMICS G120 modular drive systems, enabling precise and dynamic motor control.What safety features are integrated into this control unit?This control unit includes integrated safety functions such as Safe Torque Off (STO), Safe Stop 1 (SS1), Safely Limited Speed (SLS), Safe Brake Control (SBC), and Safe Direction (SDI), all rated up to SIL 2 / PL d.Which power modules are compatible with this control unit?The 6SL3255-0AA00-5AA0 is specifically designed for seamless integration with PM240-2 and PM250 power modules within the SINAMICS G120 modular drive system.What communication protocols does this unit support?It supports a wide range of industrial communication protocols, including PROFIBUS, PROFINET, USS, and Modbus RTU, ensuring broad compatibility.How is the Siemens 6SL3255-0AA00-5AA0 primarily mounted?The unit is designed for mounting within a control cabinet, featuring a robust industrial design suitable for demanding environments.
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Siemens 6SL3255-0AA00-5AA0
Overview
This is a genuine Siemens component from the Variable Frequency Drives 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 Variable Frequency Drives 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 Variable Frequency Drives family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Siemens Code: 6SL3255-0AA00-5AA0
- Voltage Supply: 24 V DC (external)
- Interfaces: 2 x PROFIBUS / PROFINET, USB for commissioning, Encoder inputs (incremental/HTL)
- Safety Functions: STO, SS1, SLS, SBC, SDI (up to SIL 2 / PL d)
- Cooling: Internal (with attached heatsink)
- Ambient Temperature: -10 °C to +60 °C
- Mounting: Control cabinet mounting
- Standards: IEC 61800-5-2, CE, UL, cUL
Applications
- Conveyor Systems: Delivers precise speed and torque regulation for efficient material handling and logistics.
- Textile and Packaging Machines: Ensures high accuracy and synchronization for continuous and intermittent motion processes.
- Pumps, Fans, and Compressors: Optimizes energy usage and enhances operational efficiency through variable speed regulation.
- Industrial Automation and Motion Control Systems: Acts as a central control element for complex automation tasks and multi-axis motion management.
- OEM Machinery and Process Automation: Ideal for integration into custom machinery and process lines requiring robust and adaptable drive control.
- Material Processing and Handling: Suitable for tasks involving cutting, winding, and positioning where steady and responsive motor control is essential.
Why Choose the 6SL3255-0AA00-5AA0?
This unit offers superior machine and operator safety through its integrated Safety Integrated functions, minimizing risks and ensuring adherence to international safety standards. With support for multiple communication protocols, its unmatched flexibility and connectivity allow seamless integration into diverse industrial networks, simplifying system architecture. High-performance vector control and precise motor management contribute to optimized performance and efficiency.
Availability & Shipping
- ▸In stock: 6SL3255-0AA00-5AA0 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 6SL3255-0AA00-5AA0 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.