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6SE6440-2UD32-2DA1

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The Siemens MICROMASTER 440 6SE6440-2UD32-2DA1 is a variable frequency drive (VFD) designed to deliver precise speed and torque control for three-phase asynchronous motors.
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Technical specifications for 6SE6440-2UD32-2DA1

  • Manufacturer:
    Siemens
  • Part Number:
    6SE6440-2UD32-2DA1
  • Product Family:
    Siemens MICROMASTER 440
  • Product Type:
    Variable Frequency Drive
  • Stock:
    1
  • Input Number of phases:
    3 AC
  • Line voltage:
    380 ... 480 V ±10 %
  • Line frequency:
    47 ... 63 Hz
  • Rated current (LO):
    59.00 A
  • Rated current (HO):
    43.00 A
  • Output Number of phases:
    3 AC
  • Rated voltage:
    480 V
  • Rated power (LO):
    30.00 kW / 40.00 hp
  • Rated power (HO):
    22.00 kW / 30.00 hp
  • Rated current (LO):
    62.00 A
  • Rated current (HO):
    45.00 A
  • Pulse frequency:
    4,000 Hz
  • Output frequency for V/f control:
    0...650 Hz
  • Weight:
    16 kg
  • Estimated shipping dimensions:
    27.5x52x24.5cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Communication & Connectivity Monitoring & Control

Features:

  • Provides Precise Variable Speed and Torque Control for Three-Phase AC Motors
  • Supports Heavy-Overload and Variable-Torque Industrial Applications
  • Integrates Easily into Industrial Automation and Motor Control Systems
The SIEMENS 6SE6440-2UD32-2DA1 Variable Frequency Drive is designed to regulate the speed and torque of three-phase AC motors in demanding industrial environments. Operating on a 380–480 VAC, 47–63 Hz three-phase power supply, the 6SE6440-2UD32-2DA1 delivers 22 kW High Overload (HO) and 30 kW Low Overload (LO) performance. Equipped with sensorless vector control and V/f control, the drive provides smooth acceleration, stable operation, and accurate speed regulation while reducing motor stress and improving overall system efficiency.

The 6SE6440-2UD32-2DA1 serves as a key drive component within industrial automation systems, providing dependable motor control for conveyors, pumps, fans, compressors, mixers, extruders, and other production equipment. The drive supports flexible integration through digital and analog I/O as well as optional communication modules such as PROFIBUS and DeviceNet, enabling seamless connection with PLCs and centralized control systems.

For modernization projects, the 6SE6440-2UD32-2DA1 can be integrated into both existing MICROMASTER installations and upgraded automation systems. Commissioning is supported through Siemens STARTER software and optional BOP/AOP operator panels, allowing efficient parameter configuration and diagnostics.

The 6SE6440-2UD32-2DA1 SIEMENS Variable Frequency Drive may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
SIEMENS 6SE6440-2UD32-2DA1 Variable Frequency Drive Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
SIEMENS 6SE6440-2UD32-2DA1 Variable Frequency Drive Specs

General

  • Manufacturer SIEMENS
  • Model 6SE6440-2UD32-2DA1
  • Condition New Original ready stock
  • Product Family 6SE6400-0AP00-0AA1,6SE6400-1PB00-0AA0
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Material Handling & Conveyors: Utilizes high-grade torque control and precise acceleration/deceleration ramps to smoothly move variable loads without jerking.
  • Pumping & Ventilation Systems: Leverages an integrated high-grade PID controller with autotuning for efficient fluid and airflow control, maximizing energy efficiency via programmable quadratic V/f characteristics.
  • Lifting & Cranes: Employs an integrated brake chopper (supporting internal dynamics up to 75 kW) and advanced torque handling for safety-critical lifting mechanisms.
  • Process Engineering: Suited for mixers, extruders, and agitators that require continuous speed adjustments, slip compensation, and Flux Current Control (FCC) to manage rapid load fluctuations.
  • Textiles and Packaging: Features high-speed digital input response times and positioning ramp-down functionality for highly repeatable and synchronized machine cycles.
  • Fieldbus Modularity: Out of the box, it interfaces via a basic serial link, but it can be fitted with communication modules for widespread protocols like PROFIBUS DP, DeviceNet, and CANopen.
  • Analog Input Resolution: Features two high-resolution 10-bit analog inputs for fine-tuned reference setting or process value feedback.
  • Digital I/O Versatility: Offers fast-acting programmable digital inputs and programmable relay/digital outputs for handshaking statuses with master controllers like PLCs.
  • PC Connectivity: Can connect directly to a computer via an RS232/RS485 link interface using isolated PC connection kits. This allows configuration via Siemens software suites (such as DriveMonitor or STARTER).
  • Control Methodologies: Supports high-quality Vector Control (both open and closed loop), programmable multipoint V/f characteristics, Linear/Quadratic V/f control, and independent torque control modes.
  • Operator Interfaces: Can be fitted with a Basic Operator Panel (BOP) or an Advanced Operator Panel (AOP) for direct on-unit programming, parameter cloning, and localized operation.
  • Trip-Free Operation: Implements a Fast Current Limit (FCL) feature that automatically controls transient currents to prevent annoying overcurrent trips during sudden load transitions.
  • Resiliency Features: Includes kinetic buffering (riding through brief voltage sags using the motor's mechanical energy), flying restart (catching a spinning motor smoothly), and automatic restart capabilities following primary power disruptions.
  • Protective Diagnostics: Constantly logs errors and system stats. It tracks vital faults such as Overcurrent (F0001), Overvoltage, and Inverter Overtemperature (F0004) to preserve both the electronics and the connected motor.
Description
The SIEMENS 6SE6440-2UD32-2DA1 MICROMASTER 440 Variable Frequency Drive is a AC drive engineered to provide reliable speed regulation, torque control, and energy-efficient motor operation in demanding industrial environments. Operating with a three-phase 380–480 V AC power supply, the 6SE6440-2UD32-2DA1 delivers 22 kW constant torque (High Overload) and 30 kW variable torque (Low Overload) performance, making it suitable for a wide range of medium- and heavy-duty motor applications. Designed with sensorless vector control and flexible V/f control modes, the 6SE6440-2UD32-2DA1 enables stable motor performance while reducing mechanical stress and improving production efficiency. It features an IP20 enclosure, fan cooling, and overload capability of up to 150% for 60 seconds, allowing the drive to accommodate demanding starting and transient load conditions.

The 6SE6440-2UD32-2DA1 is specifically designed to address the challenges associated with direct-on-line motor starting, including excessive inrush current, sudden mechanical shock, unstable speed regulation, and unnecessary energy consumption. By continuously adjusting motor voltage and frequency, the 6SE6440-2UD32-2DA1 provides smooth acceleration and deceleration while maintaining accurate speed control under varying load conditions. This intelligent motor control reduces equipment wear, minimizes vibration, protects gearboxes and mechanical transmission systems, and extends the service life of both motors and driven equipment. Its advanced control capabilities also help improve process stability and reduce operating costs across industrial facilities.

The SIEMENS 6SE6440-2UD32-2DA1 MICROMASTER 440 Variable Frequency Drive is widely deployed in industries where precise motor control and reliable continuous operation are essential. Typical application scenarios include conveyor systems in manufacturing plants, centrifugal pumps in water treatment facilities, ventilation fans in HVAC systems, industrial compressors, mixers, extruders, packaging equipment, textile machinery, printing machines, and material handling systems. In conveyor applications, the 6SE6440-2UD32-2DA1 delivers smooth starting and stopping to protect transported products. For pump and fan systems, it adjusts motor speed according to process demand, reducing energy consumption while maintaining stable flow or air volume. In compressors and process equipment, the drive ensures consistent motor performance during changing production loads, helping maintain overall system efficiency.
Alternative Names
6SE6440 2UD32 2DA1 6SE64402UD322DA1 6SE644O-2UD32-2DA1 6SE6440-2UD32-2DAI 6SE6400-0BP00-0AA0 6SE6400-0AP00-0AA1 6SE6400-1PB00-0AA0 6SE6400-1DN00-0AA0
Technical notes
The Siemens Micromaster 440 6SE6440-2UD32-2DA1 employs advanced vector control technology and supports two power ratings depending on the application load type: operating at 22 kW (30 hp) and 45 A output current, suitable for heavy-duty constant torque applications; and operating at up to 30 kW (40 hp) and 62 A output current, suitable for variable torque systems.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What problems does the 6SE6440-2UD32-2DA1 solve?
The 6SE6440-2UD32-2DA1 reduces high starting current, motor stalling, voltage dips, and mechanical stress during operation.
Where is the 6SE6440-2UD32-2DA1 commonly used?
The 6SE6440-2UD32-2DA1 is used for conveyors, cranes, mixers, extruders, pumps, compressors, and ventilation systems.
Is the 6SE6440-2UD32-2DA1 easy to install?
Yes. Its compact Frame D design allows space-saving cabinet installation with proper ventilation.
How is the 6SE6440-2UD32-2DA1 integrated into control systems?
It supports PROFIBUS and DeviceNet communication and can be configured using Siemens STARTER software.