Siemens SINAMICS G120C 11kW Frequency Inverter

USD 813.13

Compact 11kW/7.5kW 3AC 380-480V frequency inverter with 0-550Hz output, IP20, PROFIBUS-DP, and Safe Torque Off.

SKU Siemens-6SL3210-1KE22-6UP1 Category
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Siemens SINAMICS G120C 11kW Frequency Inverter

Model Identifier SINAMICS G120C
Official Part Number 6SL3210-1KE22-6UP1
GTIN Standard 4042948663509

Technical Overview

Compact 11kW/7.5kW 3AC 380-480V frequency inverter with 0-550Hz output, IP20, PROFIBUS-DP, and Safe Torque Off.

Key Features

  • Compact design for easy installation in confined spaces.
  • Powerful performance suitable for demanding applications.
  • Wide range of operating frequencies (0.5-550 Hz) for precise control of motor speed.
  • Integrated brake for safe and reliable motor stopping.
  • Built-in protection features to minimize downtime.
  • PROFIBUS-DP fieldbus interface for communication with other devices.
  • Supports energy-efficient, sensorless vector control for high torques at low frequencies.
  • Intuitive series commissioning and cloning function via optional modules or SD card.
  • Simple and fast software parameter assignment.
  • Full integration into TIA Portal system diagnostics for reusability.
  • All frame sizes designed for side-by-side installation without power or current derating.

Integrated Safe Torque Off (STO) function prevents accidental motor startup, enhancing operational safety.

Technical Specification Matrix

ParameterValue
Input Voltage380-480 V AC (+10% -20%)
Line Frequency47-63 Hz
Output Voltage0-480 V AC
Rated Power (Low Overload - LO)11.00 kW (15.00 hp)
Rated Power (High Overload - HO)7.50 kW (10.00 hp)
Rated Output Current (LO)25.00 A
Rated Output Current (HO)16.50 A
Max. Output Current33.00 A
Output Frequency (V/f Control)0-550 Hz
Output Frequency (Vector Control)0-240 Hz
Overload Capacity (LO)150% base load current IL for 3 s, followed by 110% base load current IL for 57 s in a 300 s cycle time
Overload Capacity (HO)200% base load current IH for 3 s, followed by 150% base load current IH for 57 s in a 300 s cycle time
Protection ClassIP20 / UL Open Type
Fieldbus InterfacePROFIBUS-DP
Efficiency0.97
Power Loss292.0 W
Sound Pressure Level (1m)66 dB
Digital Inputs (Standard)6
Digital Inputs (Fail-safe)1
Digital Outputs (Relay Changeover Contact)1 (DC 30 V, 0.5 A)
Digital Outputs (Transistor)1 (DC 30 V, 0.5 A)
Analog/Digital Inputs1 (Differential input, 10 bit resolution)
Analog Outputs1 (Non-isolated)
Motor Temperature Sensor Input1 (PTC, KTY, and Thermo-Click compatible)
Integrated Filter ClassUnfiltered
Physical Weight (kg)5.2
Dimensions L x W x H (cm)27 x 36.5 x 16

Industrial Applications

1. Industrial Pumping Systems Control

This inverter is ideal for controlling industrial pumps in water treatment, wastewater management, or chemical processing plants. Its 11 kW power rating and precise frequency control (0-550 Hz) enable dynamic adjustment of pump speed to optimize flow rates and reduce energy consumption.

Problem Solved

Inefficient energy consumption and lack of precise flow control in pumping applications by providing variable speed operation and optimization.

Variable Speed PumpFlow ControlEnergy EfficiencyWastewater TreatmentChemical ProcessingPROFIBUS-DP

2. Conveyor Belt Speed Optimization

For material handling and logistics, the inverter's ability to precisely control the speed of an 11 kW, 3-phase motor (0-550 Hz) allows for variable conveyor belt speeds. This optimizes production lines, prevents material damage during transport, and ensures smooth acceleration/deceleration. The integrated Safe Torque Off (STO) function enhances operational safety.

Problem Solved

Inflexible production lines and material damage from abrupt conveyor starts/stops, improved by variable speed and safety features.

Material HandlingConveyor SystemsMotor Speed ControlProduction Line OptimizationSafe Torque Off (STO)

3. HVAC Fan Control for Building Automation

The inverter's 11 kW power capacity and precise frequency output make it suitable for controlling large HVAC fans in commercial and industrial buildings. This facilitates demand-controlled ventilation, leading to substantial energy savings and improved indoor air quality. Its 380-480V AC input is standard for such systems, and PROFIBUS-DP enables integration with Building Management Systems (BMS).

Problem Solved

High energy consumption in fixed-speed HVAC systems and the inability to dynamically adjust ventilation based on building occupancy or environmental conditions.

HVACFan ControlEnergy ManagementBuilding AutomationVariable Air Volume (VAV)PROFIBUS-DP
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