Siemens SINAMICS G120XA 0.75kW Frequency Converter

USD 123.81

0.75kW 3-phase (380-440V) frequency converter with V/f & sensorless vector control. Features 6DI/2AI, 4DO/2AO, Modbus, IP20, and IE2 efficiency.

SKU Siemens-6SL3220-1YD10-0UB0 Category
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Siemens SINAMICS G120XA 0.75kW Frequency Converter

Model Identifier SINAMICS G120XA
Official Part Number 6SL3220-1YD10-0UB0
GTIN Standard 4042948679388

Technical Overview

0.75kW 3-phase (380-440V) frequency converter with V/f & sensorless vector control. Features 6DI/2AI, 4DO/2AO, Modbus, IP20, and IE2 efficiency.

Key Features

  • 3-phase AC input and output, suitable for 380-440V line voltage.
  • Rated power of 0.75 kW (400V LO).
  • Supports V/f linear/square-law, V/f with flux current control (FCC), and sensorless vector control.
  • Integrated air cooling fan with 0.005 m³/s air requirement.
  • Six standard digital inputs (11V switching 0->1) and two differential analog/digital inputs (12-bit resolution).
  • Four relay changeover digital outputs (DC 30V, 1.0A) and two non-isolated analog outputs.
  • Built-in PTC/KTY interface for motor temperature sensors (PTC, KTY, PT1000, Thermo-Click).
  • Communication protocols: USS, Modbus RTU, BACnet MS/TP.
  • IP20 / UL open type degree of protection.
  • IE2 efficiency class for energy-efficient operation.
  • Operates in ambient temperatures from -20 °C to 60 °C.
  • Compliance with CE, EAC, RCM, ROHS II standards.

0.75 kW 3-phase AC motor control with flexible V/f and sensorless vector control modes, and comprehensive I/O for diverse integration.

Technical Specification Matrix

ParameterValue
Input Number of phases3 AC
Input Line voltage380 ... 440 V +10%-20%
Input Line frequency47 ... 63 Hz
Input Rated current (LO)2.10 A
Output Number of phases3 AC
Output Rated voltage400 V
Output Rated power IEC 400V (LO)0.75 kW
Output Rated current 400V (IN)2.20 A
Output Rated current 380V (IN)2.20 A
Output Rated current (LO)2.20 A
Output Max. output current2.40 A
Output Pulse frequency4 kHz
Output frequency for vector control0 ... 240 Hz
Output frequency for V/f control0 ... 550 Hz
Overload capability (Low Overload LO)110% base load current IL for 60 s in a 600 s cycle time
Power factor λ0.75 ... 0.93
Power factor cos φ 10.99
Efficiency η0.96
Sound pressure level (1m)55 dB
Power loss0.043 kW
Filter class (integrated)Unfiltered
EMC category (with accessories)without
Safety function Safe Torque Offwithout SIRIUS device (e.g. via S7-1500F)
CommunicationUSS, Modbus RTU, BACnet MS/TP
Standard digital inputs Number6
Standard digital inputs Switching level: 0 → 111 V
Standard digital inputs Switching level: 1 → 05 V
Standard digital inputs Max. inrush current15 mA
Fail-safe digital inputs Number0
Digital outputs Number as relay changeover contact4
Digital outputs Output (resistive load)DC 30 V, 1.0 A
Digital outputs Number as transistor0
Analog / digital inputs Number2 (Differential input)
Analog / digital inputs Resolution12 bit
Switching threshold as digital input 0→14 V
Switching threshold as digital input 1→01.6 V
Analog outputs Number2 (Non-isolated output)
PTC/KTY interface1 motor temperature sensor input, sensors that can be connected: PTC, KTY, PT1000 and Thermo-Click, accuracy ±5 °C
V/f linear / square-law / parameterizableYes
V/f with flux current control (FCC)Yes
V/f ECO linear / square-lawYes
Sensorless vector controlYes
Vector control, with sensorNo
Encoderless torque controlYes
Torque control, with encoderNo
Standard board coating typeClass 3C2, according to IEC 60721-3-3: 2002
CoolingAir cooling using an integrated fan
Cooling air requirement0.005 m³/s (0.177 ft³/s)
Installation altitude1,000 m (3,280.84 ft)
Ambient temperature (Operation)-20 ... 60 °C (-4 ... 140 °F)
Ambient temperature (Transport)-40 ... 70 °C (-40 ... 158 °F)
Ambient temperature (Storage)-40 ... 70 °C (-40 ... 158 °F)
Relative humidity (Max. operation)95% At 40 °C (104 °F), condensation and icing not permissible
Signal cable Conductor cross-section0.15 ... 1.50 mm² (AWG 24 ... AWG 16)
Line side Versionscrew-type terminal
Line side Conductor cross-section1.50 ... 2.50 mm² (AWG 16 ... AWG 14)
Motor end Versionscrew-type terminals
Motor end Conductor cross-section1.50 ... 2.50 mm² (AWG 16 ... AWG 14)
DC link for braking resistor PE connectionOn housing with M4 screw
Max. motor cable length Shielded150 m (492.13 ft)
Max. motor cable length Unshielded300 m (984.25 ft)
Degree of protectionIP20 / UL open type
Frame sizeFSA
Efficiency classIE2
Comparison with the reference converter (90% / 100%)29.6%
Compliance with standardsCE, EAC, RCM, ROHS II
CE markingEMC Directive 2004/108/EC, Low-Voltage Directive 2006/95/EC
Physical Weight (kg)3.1
Dimensions L x W x H (cm)20.9 x 7.3 x 23.2

Industrial Applications

1. Conveyor Belt Speed Control in Manufacturing

The Siemens SINAMICS G120XA drive precisely controls the speed of a small conveyor belt motor in a production line, enabling adaptable material flow and handling.

Problem Solved

Precise speed regulation (0-550 Hz V/f control, 0-240 Hz vector control) is critical for matching production rates, reducing material waste, and optimizing throughput. The digital and analog inputs allow for integration with external sensors (e.g., proximity sensors) and control systems (e.g., PLC via Modbus RTU) to dynamically adjust conveyor speed based on real-time operational needs.

Variable frequency driveConveyor systemSpeed controlProcess optimizationModbus RTUDigital I/O

2. Pump Control in HVAC Systems

This drive manages the motor of a circulation pump within a commercial HVAC system, adjusting fluid flow rates to meet fluctuating heating or cooling demands efficiently.

Problem Solved

Optimizing pump motor speed significantly reduces energy consumption compared to fixed-speed operation. The 0.75 kW rating is suitable for smaller pumps, and the integrated motor temperature sensor input (PTC/KTY) provides essential protection and monitoring, enhancing system reliability and extending motor lifespan by preventing overheating.

HVACPump controlEnergy efficiencyVariable speed driveMotor protectionTemperature monitoringPTC/KTY interface

3. Small Fan Control in Industrial Ventilation

The G120XA controls an exhaust or supply fan in a compact industrial ventilation system to maintain optimal air quality and temperature within the workspace.

Problem Solved

Variable speed control of fans allows for demand-driven ventilation, conserving energy and reducing noise levels. The drive's ability to handle low overload (110% for 60s) and its robust operating temperature range (-20 to 60°C) ensure reliable performance in challenging industrial environments. Its compact size (73mm W x 232mm H x 209mm D) and IP20 rating make it suitable for seamless integration into industrial control cabinets.

Industrial ventilationFan speed regulationEnergy savingAir quality controlIP20 enclosureCompact driveOverload capability
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