Siemens SINAMICS V20 7.5 kW 3-Phase VFD 6SL3210-5BE27-5UV1

Siemens SINAMICS V20 7.5 kW 3-Phase VFD 6SL3210-5BE27-5UV1

Overview

6SL3210-5BE27-5UV1 is a Siemens SINAMICS V20 variable frequency drive (VFD) designed for adjustable-speed operation of suitable three-phase AC motors. It is a 7.5 kW, 10 HP-rated converter for three-phase 380–480 V AC mains. The manufacturer specifies the same 7.50 kW rating for Low Overload (LO) and High Overload (HO) operation. Its nominal output current is 16.50 A under both duty classifications. The exact suffix UV1 matters: this version is supplied without an integrated EMC filter and incorporates an integrated braking chopper. It is not the older UV0 unit, even though both share the same power rating.

Electrical Ratings

The converter accepts three-phase 380–480 V AC supply with Siemens-stated tolerance of −15%/+10%, at 47–63 Hz input frequency. Its output is three-phase AC, with 400 V IEC and 480 V NEC reference ratings. Siemens quotes 7.50 kW / 10.00 HP for both LO and HO duty and 16.50 A continuous output current for either duty classification; the HP and output-current data for the 480 V NEC basis are applicable at 440–480 V. The adjustable output frequency is 0–550 Hz. This is a converter output capability, not a declaration that every connected motor can operate safely over that full range. Motor sizing must take nameplate current, load torque and thermal conditions into account.

Control Modes and Overload Performance

The SINAMICS V20 family provides adjustable motor-speed and torque management through its documented inverter control functions. Control-mode selection and motor data should be checked in the Siemens operating instructions for the particular connected motor and application. Siemens specifies 110% of rated current for 60 seconds in Low Overload mode, with a 300-second cycle. In High Overload mode it specifies 150% for 60 seconds, also on a 300-second cycle. Because each mode has its own time and duty basis, an overload percentage is not a continuous rating. Application suitability should be evaluated against starting requirements, load inertia, acceleration time and duty cycle.

Communication and Configuration

The exact Siemens datasheet lists USS and Modbus RTU communication. These are communication protocols, not evidence of an integrated Ethernet port. The SINAMICS V20 has a built-in Basic Operator Panel (BOP) for local parameter setting and operation, as stated in Siemens product literature. The datasheet lists four standard digital inputs, one relay changeover output, one transistor output, two analog inputs and one analog output. The analog inputs may also serve as additional digital inputs, subject to configuration. Any external adapters, communications interfaces or option modules must be selected separately and cannot be assumed included.

EMC, Braking and Built-in Functions

For 6SL3210-5BE27-5UV1, Siemens explicitly specifies an unfiltered EMC configuration. Where an installation has defined electromagnetic-compatibility obligations, an appropriately selected external filter and compliant cable and grounding practices may be necessary. The same datasheet explicitly states that an integrated braking chopper is present. A chopper is not an included braking resistor: external braking resistance, sizing, wiring and permitted duty must be evaluated using Siemens documentation. The manufacturer lists a 4.00 kHz nominal pulse frequency, which may be subject to settings and derating. Do not substitute the integrated chopper rating for a complete braking design.

Installation and Environmental Conditions

This model uses the compact FSC frame with Siemens-published dimensions of 184.0 mm wide, 182.0 mm high and 169.0 mm deep. It is rated IP20 / UL open type, so the installation must provide suitable protection against dust, moisture, accidental contact and other site hazards. The exact datasheet identifies wall, through-hole and side-by-side mounting options, and states convection cooling. It gives 1,000 m as the reference installation altitude and an operating temperature range of −10 to 60 °C, subject to derating from 40 °C upward. Published cable-length guidance is 10 m shielded and 50 m unshielded; consult the relevant filter and EMC provisions for real installations. Respect ventilation, mounting orientation, protective earthing and circuit-protection requirements in the operating instructions.

Applications and Selection Guidance

The V20 series is suitable for straightforward adjustable-speed tasks where the motor and mechanical system are compatible. Examples include appropriately sized pumps, fans, conveyors, mixers and general machine drives; these are application suggestions rather than a guarantee of fit. Select by rated current as well as nominal motor kW, voltage, acceleration requirements and load behavior. Applications with rapid stopping, overhauling loads or high inertia may require a correctly sized external braking resistor. The unfiltered design means compliance planning may require external EMC components. Confirm that any motor, machine or electrical installation operates within its approved speed and thermal limits.

Exact Variant Verification

The supplied part number is 6SL3210-5BE27-5UV1. It belongs to the 380–480 V three-phase SINAMICS V20 group and has the FSC enclosure measuring 184 × 182 × 169 mm. It must not be confused with the older 6SL3210-5BE27-5UV0, whose frame is FSD and larger, or with filtered 6SL3210-5BE27-5CV1. Siemens documents integrated braking hardware on this UV1 variant, but no integrated EMC filter. Before replacing an existing drive, verify terminal layout, installation clearances, external components, selected parameters, motor protection and other system-specific conditions. Do not infer mechanical interchangeability solely from shared kW ratings.

Official Manufacturer Links

Official Manufacturer Product Page: https://mall.industry.siemens.com/mall/en/WW/Catalog/Product/6SL3210-5BE27-5UV1

Official Manufacturer Datasheet / Technical Documentation: https://mall.industry.siemens.com/spice/docuservice/docuservice?configid=14&docu.mlfb=6SL3210-5BE27-5UV1&docu.inittype=MLFB&docu.generationtype=VIEW&docu.viewid=PDF&region=AE&language=en&docu.language.locale1=en&docu.language.locale2=en

Official Operating Instructions: https://support.industry.siemens.com/cs/attachments/109977897/V20_op_instr_1224_en-US.pdf

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