Title: Siemens SINAMICS S120 Active Line Module 21kW - 6SL3131-6AE21-0AA1 - High Performance Regenerative Power Supply

Product Overview:
The Siemens SINAMICS S120 Active Line Module 6SL3131-6AE21-0AA1 is a crucial component for advanced industrial automation and motion control systems. As part of the renowned SINAMICS S120 drive family, this 21 kW Active Line Module serves as a high-performance, regenerative power supply unit, converting incoming AC voltage into a stable DC link voltage for the drive system. Its innovative design allows for the efficient return of braking energy from the motor back into the power grid, significantly reducing energy consumption and operational costs. Engineered for demanding industrial environments, the 6SL3131-6AE21-0AA1 ensures exceptional reliability, precise control, and enhanced system efficiency, making it an ideal choice for a wide range of high-dynamic applications. This module is essential for optimizing energy flow and maintaining power quality within complex machinery, contributing to sustainable and cost-effective industrial operations.

Key Features & Benefits:

Energy-Efficient Regenerative Braking: Actively feeds excess braking energy back into the mains supply, leading to substantial energy savings and a reduced carbon footprint compared to conventional braking resistors.
High Power Density and Compact Design: The "Booksize" format allows for space-saving installation in control cabinets, maximizing available space for other components and simplifying system integration.
Enhanced Power Quality: Features active infeed technology that minimizes harmonic distortion and reactive power, improving the overall power factor and reducing stress on the electrical grid infrastructure.
Robust and Reliable Operation: Designed for continuous operation in harsh industrial environments, ensuring long-term stability, minimal downtime, and extended service life for critical applications.
Integrated Safety Functions: Supports various safety functions, including Safe Torque Off (STO), for enhanced machine and operator safety, simplifying compliance with international safety standards.
Flexible System Integration: Seamlessly integrates with the entire SINAMICS S120 drive system, offering a modular and scalable solution for complex multi-axis applications and future expansions.
Optimized for Dynamic 
Applications:
 Provides a stable DC link voltage even under fluctuating loads, ensuring precise and dynamic control for high-performance motion tasks in demanding production processes.
Air-Cooled Design: Utilizes efficient internal air cooling, simplifying installation, reducing the need for external cooling systems, and minimizing maintenance requirements.
Wide Input Voltage Range: Compatible with 3-phase AC 380-480V networks, offering versatility for global deployment and adaptability to various industrial power infrastructures.

Applications:

The Siemens SINAMICS S120 Active Line Module 6SL3131-6AE21-0AA1 is widely utilized in industrial sectors requiring high precision, energy efficiency, and robust performance. Its capabilities make it suitable for:
Machine Tools: Enhancing precision, dynamics, and energy recovery in advanced milling, turning, grinding, and drilling machines.
Printing Machines: Providing dynamic control and energy savings for high-speed, multi-color printing presses and finishing equipment.
Packaging Machines: Ensuring rapid and accurate motion control for efficient packaging lines, including filling, sealing, and labeling machines.
Textile Machines: Optimizing energy flow and performance in spinning, weaving, knitting, and finishing equipment for textile production.
Cranes and Hoisting Equipment: Facilitating energy regeneration during lowering operations, significantly reducing operational costs and improving overall efficiency.
Test Stands: Delivering stable and precise power for accurate testing and simulation environments across various industries.
General Automation: Ideal for any application demanding high-performance motion control with a strong focus on energy efficiency, power quality, and system reliability.

Technical Specifications:

Part Number: 6SL3131-6AE21-0AA1
Alternative Part Number: 6SL31316AE210AA1
Product Type: SINAMICS S120 Active Line Module
Input Voltage: 3AC 380-480 V, 50/60 Hz
Output Voltage (DC Link): DC 600 V
Continuous Output Power: 21 kW
Peak Output Power: 31.5 kW
Continuous Output Current: 36 A
Peak Output Current: 54 A
Cooling Method: Internal Air Cooling
Design Type: Booksize Format
Dimensions (W x H x D): 275 mm x 600 mm x 370 mm
Weight: 28 kg
Protection Class: IP20
Operating Temperature: 0 to +50 °C
Relative Humidity: 5 to 95 % (non-condensing)
Standards Compliance: CE, UL, cUL, RCM, EAC