Siemens SINAMICS G120C 75kW Compact Inverter

USD 3,528.63

75kW variable frequency drive with 3AC 380-480V input, IP20, STO, PROFINET/EtherNet/IP, and 0-550Hz V/f control for precise industrial motor management.

SKU Siemens-6SL3210-1KE31-4AF1 Category
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Siemens SINAMICS G120C 75kW Compact Inverter

Model Identifier SINAMICS G120C
Official Part Number 6SL3210-1KE31-4AF1
GTIN Standard 4042948673287

Technical Overview

75kW variable frequency drive with 3AC 380-480V input, IP20, STO, PROFINET/EtherNet/IP, and 0-550Hz V/f control for precise industrial motor management.

Key Features

  • Compact, high-performance design for industrial settings.
  • Integrated PROFINET and EtherNet/IP communication for seamless automation integration.
  • Safe Torque Off (STO) safety function for enhanced operational safety.
  • IP20 / UL open type protection rating for control-cabinet mounting.
  • Wide input voltage range: 3AC 380–480 V ±10%, 47–63 Hz.
  • Operates with V/f and sensorless vector control for versatile motor applications.
  • Internal air cooling system.
  • Integrated Class A filter.

Rated power of 75.0 kW for efficient motor control with integrated safety and communication capabilities, suitable for demanding industrial applications.

Technical Specification Matrix

ParameterValue
Input Phases3 AC
Line Voltage380 ... 480 V +10 % -20 %
Line Frequency47 ... 63 Hz
Rated Input Current (LO)134.00 A
Rated Input Current (HO)112.00 A
Output Phases3 AC
Rated Output Voltage400V IEC / 480V NEC
Rated Output Power (LO)75.00 kW (75.00 hp)
Rated Output Power (HO)55.00 kW (60.00 hp)
Rated Output Current (LO)136.00 A
Rated Output Current (HO)103.00 A
Max. Output Current206.00 A
Pulse Frequency2 kHz
Output Frequency (Vector Control)0 ... 240 Hz
Output Frequency (V/f Control)0 ... 550 Hz
Overload Capability (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 Capability (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.
Power Factor λ0.90 ... 0.95
Efficiency η0.99
Sound Pressure Level (1m)68 dB
Power Loss1540.0 W
Filter Class (integrated)Class A
CoolingInternal air cooling
Communication InterfacesPROFINET, EtherNet/IP
Standard Digital Inputs6
Fail-safe Digital Inputs1
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 output)
PTC/ KTY InterfaceYes
Protection RatingIP20 / UL open type
Safety FunctionsSafe Torque Off (STO)
Operating Temperature–10 °C to +40 °C (without derating)
CertificationsCE, UL, cUL
Physical Weight (kg)64
Dimensions L x W x H (cm)74.5 x 46.9 x 38.5

Industrial Applications

1. High-Power Conveyor Systems

This inverter is ideal for driving large conveyor belts in material handling, logistics, or mining, which require high starting torque and the ability to manage varying loads.

Problem Solved

Provides precise speed and torque control for heavy loads, handles transient overloads, and integrates critical safety functions for operator protection during maintenance or emergencies.

75 kW output power150-200% overload capabilitySafe Torque Off (STO)380-480V 3AC inputPROFINET/EtherNet/IP

2. Industrial Pump and Fan Control

Suited for controlling large industrial pumps and fans, allowing for variable speed operation to precisely regulate flow or pressure in water treatment, HVAC, or process industries.

Problem Solved

Enables energy-efficient operation by adjusting motor speed to demand, reducing wear on mechanical components, and providing seamless integration into plant-wide automation systems.

75 kW output power0-550 Hz V/f controlIP20 protectionPROFINET/EtherNet/IP3AC 380-480V input

3. Extruder and Mixer Drives

Perfect for applications in plastic extrusion, food processing, or chemical mixing, where consistent speed and torque are critical for product quality and process stability.

Problem Solved

Maintains precise control over motor speed and torque despite changes in material viscosity or batch size, preventing product defects and optimizing throughput, while operating reliably in typical industrial control environments.

75 kW output powerSensorless vector controlOverload capabilityIP20 protection3AC 380-480V input
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