Siemens SINAMICS G120C 11kW PROFINET Variable Frequency Drive

USD 720.10

Compact 11kW SINAMICS G120C VFD with 380-480V input, IP20, integrated Class A filter, PROFINET/EtherNet/IP, and Safe Torque Off.

SKU Siemens-6SL3210-1KE22-6AF1 Category
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Siemens SINAMICS G120C 11kW PROFINET Variable Frequency Drive

Model Identifier SINAMICS G120C
Official Part Number 6SL3210-1KE22-6AF1
GTIN Standard 4042948663868

Technical Overview

Compact 11kW SINAMICS G120C VFD with 380-480V input, IP20, integrated Class A filter, PROFINET/EtherNet/IP, and Safe Torque Off.

Key Features

  • Compact footprint with integrated EMC filter.
  • Built-in PROFINET and EtherNet/IP for modern industrial connectivity.
  • Supports multiple motor control modes including V/f and vector control without encoder.
  • Robust and reliable design for demanding industrial environments.
  • Easy setup with support for STARTER and SINAMICS Startdrive in TIA Portal.
  • IP20 enclosure protection, UL Open Type compliant.
  • Wide input voltage range: 3AC 380–480V with +10% / -20% tolerance.
  • Low overload (LO) capability of 11.0 kW and High overload (HO) capability of 7.5 kW.
  • Integrated Class A line filter.
  • Includes Safe Torque Off (STO) safety functionality.
  • External 24V I/O interface: 6 digital inputs, 2 digital outputs, 1 analog input, 1 analog output, and 1 motor temperature sensor input.

Integrated PROFINET/EtherNet/IP communication with Safe Torque Off and flexible overload capabilities for reliable motor control.

Technical Specification Matrix

ParameterValue
Part Number6SL3210-1KE22-6AF1
SeriesSINAMICS G120C
Input Voltage3AC 380–480V +10% / -20%
Input Frequency47–63 Hz
Rated Power (Low Overload)11.00 kW (15.00 hp)
Rated Power (High Overload)7.50 kW (10.00 hp)
Rated Output Current (Low Overload)25.00 A
Rated Output Current (High Overload)16.50 A
Maximum Output Current33.00 A
Output Frequency (V/f control)0–550 Hz
Output Frequency (Vector control)0–240 Hz
Overload Capability (Low Overload)150% base load current for 3s, then 110% for 57s in a 300s cycle time
Overload Capability (High Overload)200% base load current for 3s, then 150% for 57s in a 300s cycle time
IP RatingIP20 / UL OPEN TYPE
Ambient Temperature–10°C to +50°C (derating above 40°C)
CoolingInternal fan
Integrated Filter ClassClass A
Communication InterfacesPROFINET, EtherNet/IP
Standard Digital Inputs6
Fail-safe Digital Inputs1
Digital Outputs (Relay)1 (DC 30V, 0.5A resistive load)
Digital Outputs (Transistor)1 (DC 30V, 0.5A resistive load)
Analog Inputs1 (Differential, 10 bit resolution)
Analog Outputs1 (Non-isolated)
Motor Temperature Sensor Input1 (PTC/KTY compatible)
Safe Torque Off (STO)Integrated
Physical Weight (kg)5.5
Dimensions L x W x H (cm)27 x 36.5 x 16

Industrial Applications

1. Variable Speed Control for Industrial Pumping Systems

The Siemens SINAMICS G120C is ideally suited for controlling centrifugal pumps in water/wastewater treatment plants, HVAC systems, or process cooling applications. Its precise speed control allows the pump's output to match demand, significantly reducing energy consumption and operational costs.

Problem Solved

Traditional fixed-speed pumps lead to energy waste, increased wear, and mechanical stress due to constant operation or throttling. This VFD's 11 kW low overload rating and variable output frequency (0-550 Hz) provide smooth, demand-driven flow modulation, extending equipment lifespan and improving efficiency. The PROFINET integration enables seamless system monitoring and control.

Variable Speed DriveCentrifugal PumpHVACWater TreatmentEnergy EfficiencyPROFINETV/f control380-480V input

2. Material Handling Conveyor Belt Systems

This VFD can precisely drive motors for conveyor belts in manufacturing, packaging, and logistics. It ensures smooth acceleration and deceleration, crucial for handling delicate products or maintaining a consistent flow of materials without damage or disruption.

Problem Solved

Abrupt starts and stops in conveyor systems cause product damage, premature belt wear, and energy surges. The G120C's high overload capability (200% for 3s, 150% for 57s) effectively manages sudden load changes, while vector control ensures accurate speed regulation. The integrated Safe Torque Off (STO) function provides critical safety for personnel during maintenance or emergencies.

Conveyor SystemMaterial HandlingVector ControlHigh OverloadSafe Torque Off (STO)380-480V input11 kW drive

3. Optimized Industrial Fan and Ventilation Control

The SINAMICS G120C is excellent for regulating the speed of industrial fans in ventilation, air handling units (AHU), and exhaust systems. Dynamic speed adjustment optimizes airflow, pressure, and temperature, leading to substantial energy savings and improved environmental control within industrial facilities.

Problem Solved

Fixed-speed industrial fans often operate at maximum capacity, leading to excessive energy consumption and inconsistent environmental conditions. The 11 kW low overload capacity and wide output frequency range (0-550 Hz) of this VFD allow for precise, demand-driven fan speed control, reducing noise levels, wear and tear, and overall power consumption. Its IP20 rating requires enclosure, suitable for dust-controlled industrial settings.

Industrial FansAir Handling Unit (AHU)VentilationEnergy SavingVariable Frequency DriveIP20380-480V input
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