Siemens 6SE6440-2UD21-5AA1

Siemens MICROMASTER 440 Inverter 6SE6440-2UD21-5AA1

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Siemens 6SE6440-2UD21-5AA1 MICROMASTER 440 Inverter 6SE6440-2UD21-5AA1 — VFDs & Frequency Converters
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Product Description

Lifecycle Status:

The Siemens MICROMASTER 440 Inverter (model 6SE6440-2UD21-5AA1) is designed for demanding motor control applications. This high-performance inverter offers precise control and robust overload capabilities, making it ideal for a wide range of industrial applications. With a rated power of 1.50 kW (2.00 hp) and a rated voltage of 480 V, it ensures efficient and reliable operation.

The inverter supports 3-phase AC input and output, with a line voltage range of 380 to 480 V ±10% and a line frequency of 47 to 63 Hz. It features a high overload capability, allowing 150% output current for 60 seconds, followed by 100% output current for 240 seconds in a 300-second cycle time. The device operates efficiently with a power factor of 0.95 and an efficiency of 0.96.

Designed for versatility, the MICROMASTER 440 includes six standard digital inputs, three relay outputs, two analog inputs, and two analog outputs. It also features a PTC/KTY interface for enhanced functionality. The inverter is built to withstand harsh environments, with an ambient operating temperature range of -10 to 50°C and storage/transport temperature range of -40 to 70°C.

The mechanical design of the inverter includes a compact frame size (FSA) with dimensions of 149.0 mm height, 73.0 mm width, and 173.0 mm depth. It has a net weight of 1.30 kg and a degree of protection rated at IP20 / UL open type, ensuring reliable performance in various industrial settings.

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Offer details

Best offer from:
Trusted supplier — United Kingdom, member since 2023
Availability:
5 pcs.
In-Stock
Updated at: 05-09-2026
Warranty:
12 months
Condition:
New Surplus
New Surplus - A new, unused, undamaged item without a manufacturer guarantee. The item may come without original packaging or in replacement packaging. If provided, the box may have been opened.
The Seller is responsible for shipping the product and invoicing

Specifications

Brand
Siemens
Rated Power (HO)
1.50 kW / 2.00 hp
Rated Voltage
480 V
Rated Current (HO)
5.90 A
Power Factor λ
0.95
Efficiency η
0.96
Number of Phases
3 AC

Available Offers

(15)
6SE6440-2UD21-5AA1 Siemens, VFDs & Frequency Converters

Siemens

Available:
6 pcs.
In-Stock
Updated at: 04-09-2026
Offer from:
Trusted supplier — Germany, member since 2024
Warranty:
24 months
6SE6440-2UD21-5AA1 Siemens, VFDs & Frequency Converters

Siemens

Available:
1 pc.
In-Stock
Updated at: 05-09-2026
Offer from:
Trusted supplier — Poland, member since 2025, 5–9 employees
Warranty:
3 months
6SE6440-2UD21-5AA1 Siemens, VFDs & Frequency Converters

Siemens

Available:
1 pc.
On Request
Updated at: 22-08-2026
Offer from:
Trusted supplier — Romania, member since 2023, 1–4 employees

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Documents

Data Sheet

Datasheet for Siemens 6SE6440-2UD21-5AA1, including specifications and features.

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