Siemens SINAMICS V20 6SL3210-5BE21-1UV0 1.1 kW 3-Phase VFD

Siemens SINAMICS V20 6SL3210-5BE21-1UV0 1.1 kW 3-Phase VFD

Product identity

The Siemens SINAMICS V20 6SL3210-5BE21-1UV0 is an original UV0-series, unfiltered variable-frequency drive rated for 1.1 kW of motor power. This exact order number operates from a three-phase 380–480 V AC supply and provides variable-frequency output for properly selected three-phase asynchronous motors. The drive is a member of the basic SINAMICS V20 range. The UV0 suffix matters: this earlier model does not have the integrated braking unit expressly identified in the UV1 successor description.

Electrical Ratings

Siemens lists a nominal line voltage of 380–480 V AC, with permitted tolerance of −15%/+10%, and a 47–63 Hz input frequency. The drive is designed for three-phase AC input, not single-phase 230 V input. Its nominal output voltage follows the drive supply class rather than independently boosting beyond line voltage. The Siemens operating instructions list 1.1 kW rated output power, 4.0 A rated input current and 3.1 A rated output current for the exact UV0 order number. They also list 3.1 A at 480 V, 4 kHz and 40 °C. Select the motor against the documented output current, electrical compatibility, thermal conditions and application load.

Control modes and performance

The SINAMICS V20 platform provides configurable variable-speed motor control for suitable asynchronous motors. The manufacturer catalogue lists 150% overload for 60 seconds for this order number; overload is temporary and must not be confused with the continuous 3.1 A current rating. Siemens V20 operating instructions describe motor control parameters and standard V/f-based setup. The available frequency range is generally listed as 0–550 Hz for the V20 family; application-specific frequency and motor limitations still govern safe operation. Do not equate the maximum electrical frequency with an approved mechanical speed.

Communication and configuration

The manufacturer product description lists built-in USS and Modbus RTU fieldbus support, together with a basic operator panel (BOP). The BOP provides local access to drive settings for commissioning, speed reference and operational parameterization. USS and Modbus RTU refer to serial communication protocols; an Ethernet network port or PROFINET support must not be inferred. Connection wiring, parameter addressing and the integration method should follow the applicable Siemens operating instructions. Any accessory or external interface must be chosen separately rather than assumed to be supplied with the base converter.

Braking, EMC and built-in functions

This exact UV0 model is unfiltered: an integrated EMC line filter is not part of its order-number configuration. Where required by the installation, suitable external EMC measures and cable practices must be assessed. The manufacturer describes the later UV1 successor as having an integrated braking unit, an addition not stated for the older UV0. Therefore do not advertise this UV0 as having a built-in braking chopper, or suggest a braking resistor is included. Stopping and deceleration capabilities require assessment of the mechanical load and of the actual braking arrangement.

Installation and typical applications

The converter has IP20 / UL open-type protection and Siemens identifies frame size FSA, 90 × 166 × 145.5 mm (W × H × D). Appropriate industrial enclosure design, grounding, upstream protection and manufacturer installation clearances remain necessary. An IP20 enclosure does not confer washdown or outdoor protection. Applications that may be technically appropriate, following motor and load checks, include small conveyors, fans, pumps, compact handling mechanisms and variable-speed production equipment. They are engineering suggestions, not guaranteed suitability for each machine.

Exact variant verification and lifecycle

The exact Siemens part number is 6SL3210-5BE21-1UV0. Siemens states that this product entered its phase-out stage on 10 February 2025 and points to 6SL3210-5BE21-1UV1 as its successor. The successor description explicitly calls out an integrated braking unit. Avoid transferring that function to UV0 or mixing specifications with 6SL3210-5BE21-1CV0, a filtered counterpart. If replacing a drive, review wiring, EMC design, motor data, mounting and parameter compatibility rather than treating suffix changes as cosmetic.

Official manufacturer links

Official Manufacturer Product Page: https://mall.industry.siemens.com/mall/en/WW/Catalog/Product/6SL3210-5BE21-1UV0

Official Manufacturer Datasheet / Technical Documentation: https://support.industry.siemens.com/cs/attachments/109773836/V20_op_instr_1019_en-US.pdf

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