The SIEMENS VFD G120XA 6SL3220-2YD20-0UB0 is a robust and versatile Variable Frequency Drive designed for automation applications. It operates on a 3-phase system and supports input voltages ranging from 380V to 440V, with a frequency range of 4763 Hz. Built with durability in mind, the device features a sturdy aluminum construction with a sleek matte black finish and IP20 protection level. It can handle a rated power of 4.00 kW, a rated current of 8.50 A, and provides a maximum output current of 9.70 A. The VFD is engineered to withstand demanding environments, operating reliably in temperatures from -20C to +60C, with a humidity tolerance of up to 95%. Its compact dimensions (100 x 275 x 209 mm) and DIN rail mounting capability ensure easy installation, while its 5.6 kg weight makes handling convenient. Backed by a 1-year warranty, this VFD is ideal for optimizing energy efficiency and seamless motor control.

Rated Data

Input

• Number of phases: 3 AC

• Line voltage: 380–440 V (+10% / -20%)

• Line frequency: 47–63 Hz

• Rated current (LO): 8.50 A

Output

• Number of phases: 3 AC

• Rated voltage: 400 V

• Rated power IEC 400V (LO): 4.00 kW

• Rated current 400V (IN): 8.80 A

• Rated current 380V (IN): 9.30 A

• Rated current (LO): 8.80 A

• Max. output current: 9.70 A

• Pulse frequency: 4 kHz

• Output frequency (vector control): 0–240 Hz

• Output frequency (V/f control): 0–550 Hz

Overload Capability (LO)

• 110% of IL for 60s within 600s cycle

• Max. output current valid for 60s in 600s cycle

General Technical Specifications

• Power factor λ: 0.75–0.93

• Power factor cos φ1: 0.99

• Efficiency η: 0.97

• Sound pressure level (1 m): 63 dB

• Power loss: 0.121 kW

• Integrated filter class: Unfiltered

• EMC category (with accessories): Without

• STO (Safe Torque Off): Not available (without SIRIUS device)

• Communication: USS, Modbus RTU, BACnet MS/TP

Inputs / Outputs

Standard Digital Inputs

• Quantity: 6

• Switching level 0 → 1: 11 V

• Switching level 1 → 0: 5 V

• Max. inrush current: 15 mA

Fail-safe Digital Inputs

• Quantity: 0

Digital Outputs

• 4 relay changeover contacts

• Output rating: DC 30 V, 1.0 A

• No transistor outputs

Analog / Digital Inputs

• Quantity: 2 (Differential)

• Resolution: 12-bit

• Switching threshold as DI:

  • 0 → 1 : 4 V

  • 1 → 0 : 1.6 V

Analog Outputs

• Quantity: 2 (Non-isolated)

PTC / KTY Interface

• 1 motor temperature sensor input

• Supported sensors: PTC, KTY, PT1000, Thermo-Click

• Accuracy: ±5 °C

Closed-loop Control Techniques

• V/f linear / square-law / parameterizable: Yes

• V/f with FCC: Yes

• V/f ECO: Yes

• Sensorless vector control: Yes

• Vector control with sensor: No

• Encoderless torque control: Yes

• Torque control with encoder: No

Ambient Conditions

• Board coating: Class 3C2 (IEC 60721-3-3:2002)

• Cooling: Air cooling with integrated fan

• Cooling air requirement: 0.005 m³/s

• Installation altitude: 1000 m

Temperature

• Operation: -20 to 60 °C

• Transport: -40 to 70 °C

• Storage: -40 to 70 °C

Relative Humidity

• Max. 95% (at 40 °C), no condensation/icing

Connections

Signal Cable

• Conductor cross-section: 0.15–1.50 mm² (AWG 24–16)

Line Side

• Terminal type: Screw

• Conductor cross-section: 1.50–6.00 mm² (AWG 16–10)

Motor End

• Terminal type: Screw

• Conductor cross-section: 1.50–6.00 mm² (AWG 16–10)

DC Link (Braking Resistor)

• PE connection: M4 screw

Max. Motor Cable Length

• Shielded: 150 m

• Unshielded: 300 m

Mechanical Data

• Degree of protection: IP20 / UL open type

• Frame size: FSB

• Net weight: 5.6 kg

• Dimensions:

  • Width: 100 mm

  • Height: 275 mm

  • Depth: 209 mm

Standards

• Certifications: CE, EAC, RCM, RoHS II

• CE marking: EMC Directive 2004/108/EC, LVD 2006/95/EC

Converter Losses (IEC 61800-9-2)

• Efficiency class: IE2

• Comparison to reference converter (90% / 100%): 33.0%

• Calculated values

Operator Panel – BOP-2

Screen

• LCD monochrome

Mechanical Data

• Degree of protection: IP55 / UL Type 12

• Net weight: 0.140 kg

• Dimensions (W×H×D): 70 × 106.85 × 19.60 mm

Ambient Conditions

• Operation: 0–50 °C

• Storage: -40–70 °C

• Transport: -40–70 °C

• Max. humidity: 95%

Technical Details 

FAQs of SIEMENS VFD G120XA 6SL3220-2YD20-OUBO: