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Siemens MICROMASTER 440 Variable Frequency Drive - 11kW

Siemens MICROMASTER 440 Variable Frequency Drive - 11 kW.

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ManufacturerSiemens

Part number6SE6440-2AD31-1CA1

Part Number 6SE6440-2AD31-1CA1

Manufacturer Siemens

Series MICROMASTER 440

Power 11 kW (constant torque) / 15 kW (square-law torque)

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12-month warranty

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CAGE: 9NK75

Built-in Class A filter Constant torque operation Square-law torque operation High overload capacity IP20 protection Wide voltage range

Product description

The Siemens MICROMASTER 440 (6SE6440-2AD31-1CA1) is a robust variable frequency drive (VFD) designed for precise motor control. It features a built-in Class A filter, constant torque capability up to 11 kW (150% overload for 60s, 200% for 3s), and square-law torque up to 15 kW. The drive operates on 380-480V 3-phase AC power with a tolerance of +10/-10% and a frequency range of 47-63 Hz. It has dimensions of 245x185x195 mm (HxWxD) and an IP20 degree of protection, suitable for ambient temperatures of -10 to +50°C. This model is supplied without an AOP/BOP.

MICROMASTER 440 drives are widely used in pump and fan applications, material handling, and general industrial machinery where variable speed control is needed to optimize performance, save energy, and reduce mechanical stress. Industries benefiting from these drives include HVAC, water treatment, and manufacturing.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 6SE6440-2AD31-1CA1 VFD. Get reliable, cost-effective solutions for your industrial automation needs.

Technical specifications

Part Number	6SE6440-2AD31-1CA1
Manufacturer	Siemens
Series	MICROMASTER 440
Power	11 kW (constant torque) / 15 kW (square-law torque)
Input Voltage	380-480 V 3 AC
Frequency	47-63 Hz
Overload	150% for 60s, 200% for 3s
Dimensions	245x185x195 mm
Protection	IP20
Ambient Temp	-10 to +50 °C
Filter	Class A

Common applications

Pumps

Fans

Conveyors

HVAC systems

General machinery

Material handling

Compatible systems

Motors requiring variable speed control within specified power and voltage ratings

Also known as

Siemens 6SE6440-2AD31-1CA1 MICROMASTER 440 VFD Siemens 11kW VFD

Replaces / compatible with

Replaces older VFD models requiring similar power and control capabilities in industrial applications.

Technical note

Expert tip

Ensure proper ventilation and adherence to wiring diagrams for safe and efficient operation, especially considering the IP20 rating.

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Frequently asked questions

What is the maximum overload capacity of the Siemens 6SE6440-2AD31-1CA1?

The Siemens 6SE6440-2AD31-1CA1 MICROMASTER 440 VFD offers a 150% overload capacity for 60 seconds and a 200% overload capacity for 3 seconds under constant torque operation. For square-law torque, the capacity is 15 kW.