Siemens SINAMICS G120XA 45 kW Variable Frequency Drive

USD 1,285.66

45kW 3AC VFD, 380-440V input, 0-550Hz V/f and 0-240Hz vector output. IP20, integrated fan, 6 DI, 4 relay DO, PTC/KTY, USS/Modbus RTU/BACnet MS/TP.

SKU Siemens-6SL3220-1YD38-0UB0 Category
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Siemens SINAMICS G120XA 45 kW Variable Frequency Drive

Model Identifier SINAMICS G120XA
Official Part Number 6SL3220-1YD38-0UB0
GTIN Standard NA

Technical Overview

45kW 3AC VFD, 380-440V input, 0-550Hz V/f and 0-240Hz vector output. IP20, integrated fan, 6 DI, 4 relay DO, PTC/KTY, USS/Modbus RTU/BACnet MS/TP.

Key Features

  • Rated power of 45.00 kW (LO) at 400V
  • 3-phase AC input voltage range of 380-440 V (+10%/-20%)
  • Output frequency up to 550 Hz (V/f control) / 240 Hz (vector control)
  • Integrated air cooling system
  • IP20 / UL open type degree of protection
  • 6 standard digital inputs (11V switching level 0->1, 5V switching level 1->0)
  • 4 relay changeover contact digital outputs (DC 30 V, 1.0 A resistive load)
  • 2 differential analog/digital inputs with 12-bit resolution
  • 2 non-isolated analog outputs
  • PTC/KTY interface for motor temperature sensor input
  • Communication protocols: USS, Modbus RTU, BACnet MS/TP
  • Operates in ambient temperatures from -20 °C to 60 °C
  • Unfiltered integrated filter class
  • IE2 efficiency class

High-performance 45 kW, 3-phase AC variable frequency drive with versatile vector and V/f control, offering precise motor speed and torque regulation for industrial systems.

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)80.00 A
Output Number of phases3 AC
Output Rated voltage400 V
Output Rated power IEC 400V (LO)45.00 kW
Output Rated current 400V (IN)82.50 A
Output Rated current 380V (IN)85.00 A
Output Rated current (LO)82.50 A
Output Max. output current91.00 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
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
Power factor λ0.75 ... 0.93
Power factor cos φ 10.99
Efficiency η0.97
Sound pressure level (1m)62.2 dB
Power loss1.260 kW
Filter class (integrated)Unfiltered
EMC category (with accessories)without
Safety function "Safe Torque Off"without SIRIUS device (e.g. via S7-1500F)
CommunicationUSS, Modbus RTU, BACnet MS/TP
Standard board coating typeClass 3C2, according to IEC 60721-3-3: 2002
CoolingAir cooling using an integrated fan
Cooling air requirement0.083 m³/s (2.931 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. operation95% 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-section10.00 ... 35.00 mm² (AWG 8 ... AWG 2)
Motor end VersionScrew-type terminals
Motor end Conductor cross-section10.00 ... 35.00 mm² (AWG 8 ... AWG 2)
PE connectionScrew-type terminals
Max. motor cable length Shielded200 m (656.17 ft)
Max. motor cable length Unshielded300 m (984.25 ft)
Degree of protectionIP20 / UL open type
Frame sizeFSD
Compliance with standardsCE, EAC, RCM, ROHS II
CE markingEMC Directive 2004/108/EC, Low-Voltage Directive 2006/95/EC
Efficiency classIE2
Physical Weight (kg)18.3
Dimensions L x W x H (cm)23.9 x 20 x 47.2

Industrial Applications

1. Conveyor System Speed Control in Logistics Hubs

This drive can precisely control the speed of induction motors driving conveyor belts in automated logistics and packaging facilities. Its capability for V/f control up to 550 Hz and a power output of 45 kW allows for dynamic adjustment of conveyor speeds to match fluctuating material flow, improving throughput and reducing energy consumption during off-peak operations.

Problem Solved

Inconsistent material flow and energy waste due to fixed-speed conveyor systems.

Variable frequency driveconveyor beltV/f controllogistics automationenergy efficiencymotor speed control

2. HVAC Fan and Pump Control in Commercial Buildings

The SINAMICS G120XA is suitable for optimizing HVAC systems in large commercial or industrial buildings by controlling the speed of fans and pumps. The 45 kW power rating and 3-phase operation match common HVAC motor requirements, while the integrated fan cooling and IP20 rating ensure reliable operation in designated electrical rooms. Dynamic speed control reduces energy consumption and noise, while the PTC/KTY interface allows for thermal monitoring of motors.

Problem Solved

High energy consumption and suboptimal performance of HVAC fans and pumps operating at constant speed.

HVAC optimizationfan controlpump controlenergy managementbuilding automationmotor thermal protection

3. Industrial Mixer and Agitator Control in Chemical Processing

In chemical and food processing plants, precise control over industrial mixers and agitators is crucial for product quality. This VFD's 45 kW output and robust overload capability (110% for 60s) can manage the demanding torque requirements of mixing viscous liquids. Its vector control capability and wide output frequency range (0-240 Hz for vector) enable precise speed and torque regulation, critical for specific reaction processes or homogenization tasks.

Problem Solved

Inefficient mixing processes and inconsistent product quality due to lack of precise speed and torque control for industrial agitators.

Industrial mixingagitator controlchemical processingvector controltorque regulationprocess optimization
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