Title: Siemens MICROMASTER 420 AC Drive Inverter - 2.2kW (3HP) 3-Phase 380-480V - Unfiltered VFD for Industrial Motor Control 6SE3222-4DG40

Product Overview:
The Siemens MICROMASTER 420 6SE3222-4DG40 is a high-performance, versatile variable frequency drive (VFD) designed for a wide range of industrial applications requiring precise and efficient motor speed control. As a key component in modern industrial automation, this 2.2 kW (3 HP) 3-phase inverter operates seamlessly with input voltages from 380V to 480V, delivering reliable and energy-efficient operation for pumps, fans, conveyors, and general machinery. Its robust design, compact footprint, and advanced control features, including V/f control and Flux Current Control (FCC), make it an ideal solution for optimizing processes, reducing energy consumption, and extending the lifespan of connected equipment. The MICROMASTER 420 series is renowned for its ease of commissioning, user-friendly interface, and comprehensive protection functions, ensuring safe and stable operation in demanding industrial environments. This unfiltered model provides a cost-effective solution for applications where external filtering is not required or is handled elsewhere in the system, making it a popular choice for system integrators and maintenance professionals seeking a dependable Siemens VFD.

Key Features & Benefits:

Precise motor speed control for enhanced process accuracy and improved product quality.
Significant energy savings through variable frequency operation, reducing electricity costs and carbon footprint.
Compact, space-saving design (IP20 protection) for easy integration into control cabinets and limited spaces.
Robust and reliable performance, ensuring long-term operation in demanding industrial environments.
Integrated PID controller for direct process control without the need for external programmable logic controllers (PLCs).
User-friendly commissioning and operation via optional Basic Operator Panel (BOP) or Advanced Operator Panel (AOP).
Flexible connectivity options, supporting USS protocol as standard and PROFIBUS DP via optional communication modules.
Comprehensive protection functions including overload, overvoltage, undervoltage, short circuit, and overheating protection for motor and drive safety.
Optimized for fan and pump applications with specialized quadratic V/f control characteristics.
Sensorless vector control capabilities for improved dynamic response and higher control accuracy.
Wide input voltage range (380-480V) accommodates various industrial power supplies.
Reduced mechanical stress on machinery, leading to extended equipment lifespan and lower maintenance costs.

Applications:

Centrifugal and positive displacement pumps in water treatment, HVAC, and industrial processes.
Industrial fans, blowers, and exhaust systems for ventilation and air handling.
Conveyor systems for material handling, logistics, and assembly lines.
Mixers and agitators in chemical, food and beverage, and pharmaceutical industries.
Packaging machinery requiring precise speed and torque control.
Textile machinery for spinning, weaving, and finishing processes.
Simple machine tools and general industrial machinery requiring variable speed control.
Automation systems where energy efficiency and precise motor control are critical.

Technical Specifications:

Part Number: 6SE3222-4DG40
Alternative Part Number: 6SE32224DG40
Product Series: Siemens MICROMASTER 420
Input Voltage: 3-Phase AC 380V - 480V (-10% / +10%)
Input Frequency: 47 Hz - 63 Hz
Output Power: 2.2 kW (3 HP)
Rated Output Current: Approximately 5.5 A
Output Voltage: 3-Phase AC 0 - Input Voltage
Output Frequency: 0 Hz - 650 Hz (V/f control)
Filter: Unfiltered
Protection Class: IP20
Control Method: V/f control, Flux Current Control (FCC)
Overload Capability: 150% for 60 seconds, 200% for 3 seconds
Communication Interface: USS protocol (standard), PROFIBUS DP (optional via module)
Braking: DC braking, Compound braking
Dimensions (H x W x D): 173 mm x 73 mm x 149 mm
Weight: Approximately 1.5 kg (3.3 lbs)
Operating Temperature: -10°C to +50°C (14°F to 122°F)
Mounting Type: Wall mounting, Cabinet mounting