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Siemens MICROMASTER 440 VFD - Constant Torque

Siemens MICROMASTER 440 VFD, 11kW, Constant Torque, IP20.

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ManufacturerSiemens

Part number6SE6440-2UD31-1CA1

Type Variable Frequency Drive

Series MICROMASTER 440

Input Voltage 380-480 V 3AC

Power Rating 11 kW (Constant Torque)

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11 kW Constant Torque Output 380-480V 3AC Input IP20 Protection Wide Ambient Temperature Range Square-Law Torque Capability Filterless Operation

Product description

The Siemens MICROMASTER 440 (part number 6SE6440-2UD31-1CA1) is a variable frequency drive designed for constant torque applications. It operates on a 380-480V 3-phase AC power supply and has a power rating of 11 kW. This unit features an IP20 degree of protection and is suitable for ambient temperatures ranging from -10 to +50 °C.

This drive is ideal for applications requiring consistent torque across a range of speeds, such as conveyors, mixers, and extruders. Its compact design and robust performance make it a reliable choice for general industrial use and machine building.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 6SE6440-2UD31-1CA1. Equip your systems with quality surplus drives from Stanlo Automation and ensure operational efficiency.

Technical specifications

Type	Variable Frequency Drive
Series	MICROMASTER 440
Input Voltage	380-480 V 3AC
Power Rating	11 kW (Constant Torque)
Torque	Square-law torque 15 kW
Protection	IP20
Ambient Temp	-10 to +50 °C
Filter	Without filter

Common applications

Conveyor Systems

Mixers

Extruders

Pumps

Fans

General Industrial Machinery

Machine Tools

Compatible systems

3-Phase AC Motors Industrial Control Systems

Also known as

MICROMASTER 440 Siemens 440 Drive MM440 VFD

Replaces / compatible with

Part of the MICROMASTER 440 series. This drive is designed as a standalone unit. Check manual for specific integration details.

Technical note

Expert tip

This unit is supplied without an AOP/BOP (Advanced/Basic Operator Panel), requiring external controls or a separate operator panel for configuration.

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Frequently asked questions

What is the power rating for constant and square-law torque applications for the Siemens 6SE6440-2UD31-1CA1?

The Siemens MICROMASTER 440 6SE6440-2UD31-1CA1 is rated for 11 kW with constant torque and 15 kW with square-law torque.