Variable Frequency Drive | Siemens | 6SE6440-2UD32-2DB1 6SE6 440-2UD32-2DB1 MICROMASTER440 without filter

Product Description: Siemens 6SE6440-2UD32-2DB1

The Siemens 6SE6440-2UD32-2DB1 is a line module designed for the SINAMICS S120 drive system. It accepts a 3-phase 380–480 V AC supply and delivers a continuous current of 32 A onto the common 600 V DC bus for downstream motor modules. Featuring integrated protection against overcurrent, overvoltage, and short circuits, it ensures safe and reliable operation. Communication and diagnostics are handled via the DRIVE-CLiQ interface, allowing seamless integration into the S120 modular architecture.

Key Features

• Input Voltage: 3AC 380–480 V ±10%, 47–63 Hz
• Output Current: 32 A continuous
• DC Bus Voltage: 600 V DC (shared bus to motor modules)
• Protection Functions: Overcurrent, overvoltage, short-circuit protection
• Cooling: Internal fan cooling, IP20 housing
• Communication Interface: DRIVE-CLiQ for control and diagnostics
• Mounting: DIN-rail installation within SINAMICS S120 system

Technical Specifications

• System Series: SINAMICS S120
• Module Type: Line Module
• Input Voltage: 3AC 380–480 V ±10%
• Continuous Output Current: 32 A
• DC Link Voltage: 600 V DC
• Cooling Method: Internal fan
• Protection Functions: Overcurrent, overvoltage, short-circuit protection
• Communication Interface: DRIVE-CLiQ
• Mounting: DIN-rail
• Dimensions (W × H × D): Approx. 220 mm × 400 mm × 300 mm
• Operating Temperature Range: 0 °C to +40 °C (derating above +40 °C)
• Protection Class: IP20
• Certifications: CE, UL, cULus

Application Areas

• Supplying and distributing DC bus power in multi-axis drive systems
• High-performance motion control in CNC, robotics, and packaging
• Industrial automation requiring regenerative braking and energy recovery
• Modular drive architectures with scalable power distribution

Advantages

• High current capacity in a compact DIN-rail module
• Integrated safety features for robust industrial operation
• Seamless diagnostics and parameterization via DRIVE-CLiQ
• Scalable solution for future system expansion