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Product description
The Siemens 6SE6440-2UD23-0BA1 belongs to the MICROMASTER 440 series and is documented for a motor rated power of 3 kW at constant torque. This frequency inverter is an unfiltered three-phase version for 380 to 480 V AC with ±10 % voltage tolerance and an input frequency of 47 to 63 Hz. Its rated output current is 7.7 A and its output power is 5.9 kVA. Short-term overloads are specified at 150 % for 60 seconds and 200 % for 3 seconds. Six standard digital inputs form the binary input side. There are also two analogue inputs and a PTC/KTY interface for connecting a temperature sensor. On the output side, this version has three relay outputs and two analogue outputs. The integrated RS-485 interface with USS protocol is used for serial communication; optional communication modules are connected via the designated slot. The motor terminals accept conductor cross-sections up to 6 mm². For dynamic braking, braking resistor 6SE6400-4BD12-0BA0 with 160 Ω is assigned to the unit; this assignment forms part of the version-specific operating documentation. The enclosure is FSB frame size with IP20 protection and UL Open Type. The permissible ambient operating temperature ranges from -10 to +50 °C. An AOP or BOP is not part of the described version. The mechanical data allow a direct check of cabinet space: 202 mm height, 149 mm width and 172 mm depth at a net weight of 3.3 kg. The combination of supply range, power, output current, I/O equipment and frame size clearly distinguishes the 6SE6440-2UD23-0BA1 within the MICROMASTER 440 range. The complete order number, unfiltered 3 AC input and FSB dimensions are particularly relevant for technical identification.
Example image – The item supplied will have the stated manufacturer or type number and the stated condition category. Serial number, manufacturing date, labels, colour, packaging and normal signs of use or storage may differ. Specifications
| Manufacturer | Siemens |
|---|---|
| Product series | MICROMASTER-440 |
| Manufacturer / order / identification number | 6SE6440-2UD23-0BA1 |
| Device type | Frequency inverter, unfiltered |
| Input voltage | 3 AC 380–480 V, ±10 % |
| Input frequency | 47–63 Hz |
| Motor rated power | 3 kW at constant torque |
| Rated output current | 7.7 A |
| Overload capacity | 150 % for 60 s; 200 % for 3 s |
| Digital inputs | 6 |
| Analogue inputs / analogue outputs | 2 / 2 |
| Relay outputs | 3 |
| Temperature interface | 1 × PTC/KTY |
| Degree of protection / frame size | IP20 / UL Open Type, FSB |
| Dimensions | 149 × 202 × 172 mm (W × H × D) |
| Weight | 3.3 kg |
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What power rating and supply range does the Siemens 6SE6440-2UD23-0BA1 have?
This version is documented for 3 kW motor rated power at constant torque and 3 AC 380 to 480 V with ±10 % tolerance. The rated output current is 7.7 A.
What I/O equipment does this MICROMASTER 440 have?
It has six digital inputs, two analogue inputs, three relay outputs, two analogue outputs and a PTC/KTY interface.
What applies if an item develops a defect within 14 days?
For the condition categories “Used, removed from an installation” and “New, old stock”, the contractual 14-day right of return in the event of a defect applies. The defect must occur within 14 calendar days after delivery and be reported in text form within the same period.
In particular, the REHA tamper-evident seal must remain fully intact and our RMA approval is required before return. In an accepted case, we decide between replacement and refund. Details in Section 11 of the Terms.
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The shipping method, shipping cost and estimated delivery time are confirmed for the specific order. Depending on the item, destination and urgency, we can check parcel, express or freight shipping as well as collection.
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Can I return an item ordered incorrectly or found incompatible?
No. There is no general B2B right of return, exchange, cancellation or withdrawal. Incorrect or duplicate orders and a lack of suitability or compatibility with the customer’s installation are not covered by the contractual 14-day right of return in the event of a defect. Details in Section 12 of the Terms.
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