Siemens SINAMICS G120C 7.5kW Compact Converter

USD 634.53

Compact 7.5kW/5.5kW variable frequency drive with 3AC 380-480V input, integrated PROFIBUS-DP, Safe Torque Off, and IP20 protection.

SKU Siemens-6SL3210-1KE21-7UP1 Category
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Siemens SINAMICS G120C 7.5kW Compact Converter

Model Identifier SINAMICS G120C
Official Part Number 6SL3210-1KE21-7UP1
GTIN Standard 4042948663493

Technical Overview

Compact 7.5kW/5.5kW variable frequency drive with 3AC 380-480V input, integrated PROFIBUS-DP, Safe Torque Off, and IP20 protection.

Key Features

  • Integrated PROFIBUS-DP fieldbus for efficient communication.
  • IP20/ UL OPEN TYPE protection for robust industrial environments.
  • Compact FSB frame size (196x100x203mm) for space-saving installation.
  • Versatile I/O interface: 6 digital inputs, 2 digital outputs, 1 analog input, 1 analog output.
  • Supports both low (7.5kW) and high (5.5kW) overload conditions for diverse applications.
  • Designed for energy-saving operation.
  • Delivers efficient and stable performance across various load profiles.

Integrated Safe Torque Off (STO) function for critical safety applications.

Technical Specification Matrix

ParameterValue
Input Voltage3AC 380-480V +10/-20%
Frequency Range47-63Hz
Rated Power (Low Overload)7.5kW
Rated Power (High Overload)5.5kW
Overload Capacity (Low Overload)150% for 3s, 110% for 57s, 100% for 240s
Overload Capacity (High Overload)200% for 3s, 150% for 57s, 100% for 240s
Digital Inputs (DI)6
Digital Outputs (DO)2
Analog Inputs (AI)1
Analog Outputs (AO)1
Motor Temperature Input1 (1Mot_t)
Fieldbus CommunicationPROFIBUS-DP
Protection RatingIP20/ UL OPEN TYPE
Size (FSB)196x100x203 mm (HxWxD)
External 24V SupportYes
Physical Weight (kg)2.7
Dimensions L x W x H (cm)26 x 25.5 x 12.5

Industrial Applications

1. Conveyor Belt Systems for Material Handling

This drive is ideally suited for controlling motors in conveyor belt systems, where it can precisely manage the speed and torque to handle varying loads of materials. The 7.5kW low overload rating ensures consistent operation for standard loads, while the 5.5kW high overload capacity handles brief surges during starting or changes in material flow. The integrated PROFIBUS-DP allows seamless integration with a central control system for synchronized and efficient material transport, and the STO function provides immediate safety shutdown in emergencies.

Problem Solved

Provides precise and safe speed control for varying loads on conveyor belts, ensuring efficient material flow and worker safety.

Variable Speed ControlTorque ManagementPROFIBUS-DPSafe Torque Off (STO)Overload Protection380-480V AC

2. Industrial Packaging Lines

In industrial packaging machinery, precise motor control is crucial for processes like filling, sealing, and labeling. The SINAMICS G120C's ability to handle both low and high overload conditions (7.5kW/5.5kW) makes it suitable for machines that experience fluctuating power demands. The multiple I/Os (6DI, 2DO, 1AI, 1AO) allow for direct integration with sensors and actuators on the packaging line, enabling precise timing and sequencing of operations. Its compact IP20 design facilitates installation within control cabinets commonly found in packaging environments.

Problem Solved

Enables precise, synchronized, and safe motor control for complex and demanding industrial packaging machinery, adapting to dynamic load requirements.

Synchronized MotionProcess ControlDigital Inputs/OutputsAnalog Inputs/OutputsIP20 ProtectionCompact Size

3. Pumps and Fans in HVAC Systems

For industrial pumps and fans used in HVAC (Heating, Ventilation, and Air Conditioning) systems, the 6SL3210-1KE21-7UP1 provides energy-efficient speed control. The 3AC 380-480V input voltage is standard for such industrial equipment, and the drive's ability to operate efficiently across a 47-63Hz frequency range allows for optimized performance based on demand. By varying the motor speed, the drive helps in reducing energy consumption and managing airflow or fluid flow precisely, with the IP20 rating ensuring its suitability for installation in protected environments like electrical rooms.

Problem Solved

Optimizes energy consumption and provides precise flow/pressure control for industrial pumps and fans by efficiently regulating motor speed, while ensuring safe operation.

Energy EfficiencyVariable Frequency DriveHVAC ControlFlow RegulationPressure Control380-480V AC
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