Siemens SINAMICS G120C 90kW Frequency Converter

USD 4,363.96

90kW 3AC 380-480V variable frequency drive with IP20, integrated Class A filter, Safe Torque Off, and USS/MODBUS RTU communication. Offers robust motor control.

SKU Siemens-6SL3210-1KE31-7AB1 Category
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Siemens SINAMICS G120C 90kW Frequency Converter

Model Identifier SINAMICS G120C
Official Part Number 6SL3210-1KE31-7AB1
GTIN Standard 4042948676110

Technical Overview

90kW 3AC 380-480V variable frequency drive with IP20, integrated Class A filter, Safe Torque Off, and USS/MODBUS RTU communication. Offers robust motor control.

Key Features

  • High-performance variable speed drive for efficient motor control
  • Adjusts motor speed by changing electrical power frequency
  • Integrated Class A line filter
  • Versatile I/O interface: 6 Digital Inputs, 2 Digital Outputs, 1 Analog Input, 1 Analog Output, 1 Motor Temperature sensor input
  • Integrated Safe Torque Off (STO) safety function
  • Built-in USS/MODBUS RTU fieldbus communication
  • IP20 / UL Open Type protection rating
  • Designed for energy efficiency in industrial applications

Rated power of 90.0 kW (low overload) and 75.0 kW (high overload) for 3AC 380-480V applications, ensuring robust motor control with significant overload capability.

Technical Specification Matrix

ParameterValue
Input Voltage3AC 380-480V +10/-20%
Line Frequency47-63 Hz
Rated Power (Low Overload)90.0 kW
Rated Power (High Overload)75.0 kW
Overload Capability (LO)150% for 3s, 110% for 57s, 100% for 240s (300s cycle time)
Overload Capability (HO)200% for 3s, 150% for 57s, 100% for 240s (300s cycle time)
Protection RatingIP20 / UL Open Type
Digital Inputs (DI)6
Digital Outputs (DO)2
Analog Inputs (AI)1
Analog Outputs (AO)1
Motor Temperature Input1 (Mot_t)
Safety FunctionSafe Torque Off (STO)
Integrated FieldbusUSS/MODBUS RTU
Integrated Filter ClassClass A
Physical Weight (kg)64
Dimensions L x W x H (cm)76 x 40 x 58.5

Industrial Applications

1. Heavy-Duty Conveyor Systems in Manufacturing

Precisely controls the speed and torque of large motors driving conveyor belts in various manufacturing and material handling facilities.

Problem Solved

Provides accurate speed regulation for varying production demands, enhances energy efficiency through variable frequency operation, and ensures operator safety with the integrated Safe Torque Off function during maintenance. The 90kW low overload capacity is ideal for starting and managing heavy loads.

Variable Frequency DriveMotor Control90kW380-480VSafe Torque OffUSS/MODBUS RTUMaterial Handling

2. Large Industrial Pump and Fan Control

Regulates flow rates in large industrial pumping stations or precisely controls air volume in extensive industrial ventilation and HVAC systems.

Problem Solved

Optimizes energy consumption by dynamically adjusting motor speed to match demand, significantly reduces mechanical wear on pumps and fans, and facilitates remote monitoring and control via Modbus RTU communication. The IP20 rating allows for secure installation within a control cabinet.

Variable Speed DriveEnergy Efficiency75kW380-480VIP20Process ControlHVAC

3. Machine Tool Spindle Control (Medium to Heavy)

Provides accurate speed and torque control for the main spindle motors of medium to heavy-duty machine tools such as CNC lathes, milling machines, and grinding equipment.

Problem Solved

Achieves precise cutting speeds essential for different materials and tooling, enables dynamic acceleration and deceleration for complex machining cycles, and offers robust overload protection (75kW high overload) for demanding cutting operations. Integrated I/O supports seamless integration with machine control systems.

Spindle ControlVector ControlHigh Overload380-480VDigital InputsAnalog OutputsMachine AutomationCNC
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