Title: Siemens MasterDrives MC Compact PLUS 6SE7021-4EP50 Frequency Converter - 7.5kW 480V AC Drive

Product Overview:
The Siemens MasterDrives MC Compact PLUS 6SE7021-4EP50 is a high-performance, versatile frequency converter engineered for demanding industrial applications that require precise speed and torque control. As a key component of the renowned MasterDrives MC Compact PLUS series, this 7.5 kW (10 HP) AC drive operates efficiently on a 3-phase 380-480V power supply, delivering exceptional reliability and energy efficiency. Its compact and robust design makes it an ideal solution for installations with limited space, while ensuring long-term, stable operation in challenging industrial environments. The 6SE7021-4EP50 features advanced vector control capabilities, enabling dynamic response and accurate positioning for a wide array of machinery, thereby significantly enhancing productivity and reducing overall operational costs. This drive is a cornerstone for modern automation, providing the control precision necessary for complex motion tasks.

Key Features & Benefits:

 High Dynamic Performance: Achieves precise speed and torque control, ensuring optimal machine performance and rapid response to load changes.
 Advanced Vector Control: Supports both sensorless vector control (SVC) and closed-loop vector control (VC) for superior motor regulation, accuracy, and wide speed range.
 Integrated Safety Functions: Incorporates Safe Torque Off (STO) and Safe Stop 1 (SS1) for enhanced operational safety, simplifying compliance with machine directives.
 Energy Efficiency: Optimizes motor operation to significantly reduce energy consumption, leading to substantial cost savings and a lower environmental footprint.
 Compact Design: Space-saving footprint allows for flexible and efficient installation within control cabinets, maximizing available industrial space.
 Robust Industrial Construction: Built to withstand harsh industrial conditions, ensuring long-term reliability, minimal maintenance, and reduced downtime.
 User-Friendly Commissioning: Compatible with Siemens STARTER software for intuitive setup, comprehensive diagnostics, and straightforward parameterization.
 Flexible Communication Options: Supports standard communication protocols such as PROFIBUS DP and USS for seamless integration into existing automation systems.
 Wide Voltage Range: Operates reliably on 3-phase AC 380-480V (+10% / -10%), accommodating various global power supply standards.
 High Overload Capability: Designed to handle peak loads, ensuring stable and continuous operation even under challenging and fluctuating conditions.

Applications:

 Material Handling Systems: Ideal for conveyors, cranes, hoists, and automated storage and retrieval systems (AS/RS) requiring precise movement and positioning.
 Machine Tools: Essential for lathes, milling machines, and grinding machines where accurate spindle and axis control are critical for precision manufacturing.
 Textile Machinery: Optimizes performance in spinning, weaving, and finishing machines demanding accurate speed synchronization and tension control.
 Packaging Machines: Enhances efficiency in fillers, sealers, wrappers, and palletizers for high-speed, precise, and repeatable operations.
 Pumps, Fans, and Compressors: Provides optimized flow and pressure control in HVAC systems, water treatment plants, and various industrial processes.
 General Industrial Drives: Suitable for a broad spectrum of industrial motors across diverse sectors where variable speed, high performance, and reliability are paramount.
 Food and Beverage Industry: Applications requiring hygienic design and reliable operation in demanding, often wash-down, environments.

Technical Specifications:

 Part Number: 6SE7021-4EP50
 Alternative Part Number: 6SE70214EP50
 Product Series: Siemens MasterDrives MC Compact PLUS
 Input Voltage: 3 AC 380-480 V (+10% / -10%)
 Input Frequency: 50/60 Hz
 Rated Output Power: 7.5 kW (10 HP)
 Rated Output Current: 21 A (at 400V)
 Overload Capacity: 150% for 60 seconds, 200% for 3 seconds
 Control Method: V/f control, Sensorless Vector Control (SVC), Closed-Loop Vector Control (VC)
 Protection Class: IP20
 Cooling Method: Forced air cooling (integrated fan)
 Communication Interfaces: Integrated PROFIBUS DP, USS protocol
 Operating Temperature: 0°C to +50°C
 Storage Temperature: -40°C to +70°C
 Dimensions (H x W x D): Approx. 380 mm x 150 mm x 200 mm
 Weight: 12.5 kg