Siemens SINAMICS G120C 37kW Variable Frequency Drive

USD 1,820.90

Compact 37.0 kW, 380-480V 3AC VFD with IP20 rating, integrated Class A filter, Safe Torque Off, and PROFINET-PN for efficient motor control.

SKU Siemens-6SL3210-1KE27-0AF1 Category
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Siemens SINAMICS G120C 37kW Variable Frequency Drive

Model Identifier SINAMICS G120C
Official Part Number 6SL3210-1KE27-0AF1
GTIN Standard 4042948673225

Technical Overview

Compact 37.0 kW, 380-480V 3AC VFD with IP20 rating, integrated Class A filter, Safe Torque Off, and PROFINET-PN for efficient motor control.

Key Features

  • Compact design for space-saving installation.
  • Integrated Class A filter for reduced electrical interference.
  • Safe Torque Off (STO) safety function for enhanced operational safety.
  • Integrated PROFINET-PN and EtherNet/IP fieldbus for seamless communication.
  • I/O interface: 6 Digital Inputs, 2 Digital Outputs, 1 Analog Input, 1 Analog Output.
  • Suitable for asynchronous (induction) motors.
  • Supports intuitive commissioning via Smart Access Module, BOP-2, IOP-2, or SD card.
  • IP20/UL open type degree of protection.

Rated for 37.0 kW with 150% overload capacity for 3 seconds, ensuring robust performance for demanding motor control applications.

Technical Specification Matrix

ParameterValue
Rated Power37.0 kW
Overload Capability150% for 3 seconds (LO); 200% for 3 seconds (HO)
Input Voltage380-480 V 3AC +10/-20%
Input Frequency47-63 Hz
Filter ClassIntegrated Class A
Digital Inputs6 (Standard), 1 (Fail-safe)
Digital Outputs1 (Relay changeover contact), 1 (Transistor)
Analog Inputs1 (Differential input)
Analog Outputs1 (Non-isolated output)
Safety FunctionSafe Torque Off (STO)
Fieldbus IntegrationPROFINET-PN, EtherNet/IP
Degree of ProtectionIP20/UL open type
External Supply24 V
Power Factor λ0.90 - 0.95
Efficiency η0.98
Sound Pressure Level (1m)72 dB
Physical Weight (kg)20
Dimensions L x W x H (cm)23.7 x 20 x 47.2

Industrial Applications

1. Conveyor Belt Systems in Logistics & Manufacturing

This VFD is ideal for controlling the speed and torque of motors driving conveyor belts in automated warehouses or production lines. The 37.0 kW power rating is sufficient for medium to large conveyor systems, and the 150% overload capacity for 3 seconds allows for smooth starts with heavy loads and handling transient peaks. The integrated STO ensures safe stops for maintenance or emergency, crucial for personnel safety. PROFINET integration allows for seamless control and monitoring within a larger automation system.

Problem Solved

Precisely controls conveyor speed and handles sudden load changes, ensuring efficient material flow and preventing system overloads, while integrating critical safety features.

Variable Speed DriveTorque ControlHeavy Load Start-upPROFINET CommunicationSafe Torque OffMaterial Handling

2. HVAC Motor Control for Large Commercial Buildings

The SINAMICS G120C can efficiently regulate the speed of fans and pumps in large-scale Heating, Ventilation, and Air Conditioning (HVAC) systems. Its 37.0 kW rating makes it suitable for significant air handlers or circulation pumps. The integrated Class A filter minimizes harmonic distortion on the power grid, which is important in sensitive building environments. Variable speed operation directly translates to energy savings by matching motor output to demand.

Problem Solved

Optimizes energy consumption in HVAC systems by precisely controlling fan and pump motors based on environmental demand, reducing operating costs and ensuring power quality.

Energy EfficiencyVariable Frequency DriveFan ControlPump ControlHarmonic FilteringBuilding Automation

3. Packaging Machine Motor Control

In packaging machinery, precise and dynamic motor control is paramount for tasks like filling, sealing, and labeling. The 37.0 kW rating and overload capabilities are suitable for driving various mechanisms within high-speed packaging lines. The integrated I/O allows for direct connection to sensors and actuators, enabling tight synchronization of machine movements. The compact IP20 design facilitates integration into control cabinets often found on packaging machines.

Problem Solved

Provides precise and responsive motor control for intricate packaging processes, ensuring high throughput and accuracy, with integrated safety and easy machine integration.

Precision Motor ControlSynchronizationDigital Inputs/OutputsPackaging AutomationIP20 EnclosureMachine Building
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