Siemens 6SE6420-2UD31-1CA1 MICROMASTER 420 Frequency Converter

The 6SE6420-2UD31-1CA1 is a MICROMASTER 420 frequency converter designed for precise motor control in industrial automation. This unit is optimized for 3-phase AC input (380–480 V) and delivers a nominal power rating of 11 kW. Engineered for versatility, it supports both constant torque and square-law torque applications, with an overload capacity of 150% for 60 seconds. The drive is supplied without an integrated filter or operator panel (AOP/BOP), facilitating flexible integration into standardized electrical cabinets where external control interfaces are already present.

Features

• Range: MICROMASTER 420
• Power Rating: 11 kW
• Input Voltage: 380–480 V AC (3-phase)
• Control Capability: Constant torque and square-law torque
• Overload: 150% for 60 seconds
• Protection: IP20 rating
• Operating Temp: -10 degC to +50 degC

Applications

• Pumps, fans, and compressor systems
• Conveyor drives and material handling
• Packaging machinery
• General industrial motor control tasks

Technical Specifications

Installation Guidelines

• Mounting: Vertical installation in an enclosure with adequate ventilation. Maintain clear space above and below the drive to facilitate airflow for cooling.
• Environment: Ensure installation in a clean environment compliant with IP20 standards to prevent dust or debris buildup within the internal electronics.
• Wiring: Connect the 3-phase AC power to the input terminals and ensure secure connections for motor cables. Use shielded motor cables to minimize electromagnetic interference.
• Grounding: Establish a proper protective earth connection to ensure safety and signal integrity.
• Operation: Since this unit is supplied without an AOP/BOP, ensure the system control architecture is prepared for external configuration or parameterization.