Siemens SINAMICS V20 6SL3210-5BE21-1CV0 1.1 kW 3-Phase VFD

Siemens SINAMICS V20 6SL3210-5BE21-1CV0 1.1 kW 3-Phase VFD

The Siemens SINAMICS V20 6SL3210-5BE21-1CV0 is a compact AC variable-frequency drive for speed control of compatible three-phase asynchronous motors. This exact filtered CV0 variant has a manufacturer-rated 1.1 kW motor output at the 400 V-class supply and uses a three-phase AC input. It is designed for straightforward adjustable-speed industrial duties where basic inverter control, local commissioning and serial fieldbus connectivity are needed. The unit has an integrated EMC filter specified as C3 in the Siemens product description. Its CV0 generation and full article number matter when selecting a replacement.

Electrical Ratings

This model requires three-phase 380–480 V AC line input, with Siemens listing -15%/+10% supply tolerance and 47–63 Hz supply frequency. It provides three-phase variable-frequency output in the 400 V IEC / 480 V NEC voltage class; it is not a 230 V single-phase-input product. The rated motor power is 1.10 kW (1.50 HP in Siemens’ manufacturer-rated 480 V classification). The rated continuous output current is 3.10 A. The published output-frequency range for the V20 model documentation is 0–550 Hz. Always select the motor and machine operating point from the actual motor nameplate and the drive’s duty, cooling and derating conditions rather than treating the maximum programmable frequency as universally safe.

Duty Ratings and Overload

The Siemens exact-variant operating table records 3.10 A rated output current. In the V20 manufacturer’s low-overload classification, 110% rated output current can be applied for 60 seconds in a 300-second cycle. In the high-overload classification, 150% rated output current can be applied for 60 seconds in a 300-second cycle. These are temporary overload capabilities, not continuous motor-current ratings. The same 1.1 kW nominal output power is listed for this frame in the associated Siemens V20 product family documentation. Application sizing must respect overload repetition, enclosure temperature, input supply and cable installation constraints.

Control Modes and Motor Compatibility

The SINAMICS V20 range is designed principally for the speed control of three-phase asynchronous, or induction, motors. Siemens documents standard scalar V/f-style motor-speed control and inverter functionality in the operating instructions. Advanced closed-loop servo operation, permanent-magnet motor capability, built-in certified safety functions and a universal positioning controller should not be assumed from the product’s appearance or V20 series name. For machinery needing regulated positioning or safety integrity, review the application design and the exact inverter documentation separately.

Communication and Configuration

Siemens identifies USS and Modbus RTU fieldbus support. These are serial communication protocols: do not confuse them with built-in Ethernet or PROFINET. The product listing confirms an integrated basic operator panel (BOP) for local setup and operation. It also lists four digital inputs, two digital outputs, two analog inputs and one analog output; signal allocation and terminal behavior depend on configured functions. Commissioning personnel should confirm parameter settings, protocol wiring, termination, addressing and motor-data entries from the applicable Siemens operating instructions. External operator or parameter-loading accessories, when used, should be treated as separately supplied unless the sales package explicitly includes them.

EMC Filter and Braking Configuration

The exact 6SL3210-5BE21-1CV0 Siemens catalogue describes an integrated C3 EMC filter; the corresponding Siemens V20 datasheet nomenclature uses integrated Class A. These are standards-context descriptions rather than evidence of two separate filter options included together. An integrated braking chopper is not specified for this CV0 generation; Siemens expressly calls out an integrated braking unit for successor part 6SL3210-5BE21-1CV1. Do not treat an external dynamic-braking unit or braking resistor as included with CV0. Verify stopping time, braking energy and any separately required hardware before specifying rapid-deceleration applications.

Installation and Protection

The drive is IP20 / UL open type, intended for appropriate panel or protected mounting rather than direct exposure to water or dust. Siemens lists frame size FSA and dimensions 90 × 166 × 145.5 mm (W × H × D) for the 1.1 kW CV0 configuration. External-fan cooling, ventilation clearances, ambient operating limits, input protection, earthing and cable routing should be designed using Siemens installation instructions. The manufacturer’s exact-model documentation references an operating temperature range of -10 to 60 °C subject to its conditions and a nominal installation altitude of 1,000 m. Temperature and altitude derating should be checked for the actual installation. Siemens lists shielded motor-cable length up to 10 m and unshielded length up to 50 m under the stated technical conditions.

Applications and Selection Guidance

Technically appropriate uses include simple adjustable-speed small conveyors, belt handling, low-power fans, pumps, mixers and general industrial auxiliary drives when the selected 1.1 kW induction motor draws no more than the applicable rated current. These are application suggestions, not declarations that this drive is specifically certified for every listed machine. Systems requiring quick stopping must independently assess braking components; systems requiring specialized motion regulation or communication hardware must separately verify those requirements. The selected EMC-filter class must be appropriate for the facility’s installation category and cabling.

Exact CV0 Variant and Lifecycle

Siemens identifies 6SL3210-5BE21-1CV0 as a filtered CV0 product, not the unfiltered 6SL3210-5BE21-1UV0 and not the successor 6SL3210-5BE21-1CV1. Siemens’ catalogue identifies a product phase-out effective 10 February 2025 and names CV1 as the replacement. The CV1 listing specifically adds an integrated braking unit, which must not be silently attributed to the CV0 unit. For maintenance replacement, check installation dimensions, external wiring, functional parameterization and braking requirements instead of assuming the article numbers are interchangeable without engineering review.

Manufacturer Links and Internal Navigation

Official Manufacturer Product Page: https://mall.industry.siemens.com/mall/kw/EN/Catalog/Product/?mlfb=6SL3210-5BE21-1CV0

Official Manufacturer Datasheet / Technical Documentation: https://mall.industry.siemens.com/mall/Document/GetDocumentBasedOnCode?code=aHR0cHM6Ly9tYWxsLmluZHVzdHJ5LnNpZW1lbnMuY29tL3NwaWNlL2RvY3VzZXJ2aWNlP2NvbmZpZ2lkPTE0JmRvY3UubWxmYj02U0wzMjEwLTVCRTIxLTFDVjAmZG9jdS5pbml0dHlwZT1NTEZCJmRvY3UuZ2VuZXJhdGlvbnR5cGU9VklFVyZkb2N1LnZpZXdpZD1QREYmcmVnaW9uPVdXJmxhbmd1YWdlPWVuJmRvY3UubGFuZ3VhZ2UubG9jYWxlMT1lbiZkb2N1Lmxhbmd1YWdlLmxvY2FsZTI9ZW4%3D

Siemens V20 Operating Instructions (family-level): https://support.industry.siemens.com/cs/attachments/103596507/v20_operating_instructions_complete_en-US_en-US.pdf

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