Name: Siemens SINAMICS G120C 18.5kW Frequency Converter - INOSAKI
SKU: Siemens-6SL3210-1KE23-8UB1
Price: 1001.74 USD
Availability: InStock

Technical Overview

Compact 18.5kW 3-phase 380-480V frequency converter with IP20, Safe Torque Off, and Modbus RTU for precise motor control and energy efficiency.

Key Features

Compact design allows for space-saving installation, including side-by-side and push-through mounting options.
Integrated Safe Torque Off (STO) function, controllable via terminal or PROFIsafe, for enhanced machine and operator safety.
Supports USS/MODBUS RTU communication for easy integration into existing control and micro-automation systems.
Robust construction with a wide voltage range, advanced cooling, and coated PCB for reliable operation in harsh industrial environments.
Flexible I/O interface including 6 digital inputs, 2 digital outputs (1 relay, 1 transistor), 1 differential analog input, 1 non-isolated analog output, and 1 PTC/KTY interface.
Facilitates quick commissioning through pre-built connection and application macros, simplifying setup.
Parameter settings can be easily transferred between multiple units using a parameter loader, even without a power supply.
Offers both High Overload (HO) and Low Overload (LO) capacities to suit diverse application requirements.

Technical Specification Matrix

Parameter	Value
Input Number of Phases	3 AC
Line Voltage	380 ... 480 V +10 % -20 %
Line Frequency	47 ... 63 Hz
Rated Current (LO)	48.20 A
Rated Current (HO)	45.20 A
Output Number of Phases	3 AC
Rated Power (LO)	18.50 kW (25.00 hp)
Rated Power (HO)	15.00 kW (20.00 hp)
Rated Output Current (LO)	37.00 A
Rated Output Current (HO)	31.00 A
Max. Output Current	62.00 A
Pulse Frequency	4 kHz
Output Frequency for Vector Control	0 ... 240 Hz
Output Frequency for 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 λ	0.70 ... 0.85
Offset Factor cos φ	0.95
Efficiency η	0.97
Sound Pressure Level (1m)	66 dB
Power Loss	434.0 W
Filter Class (integrated)	Unfiltered
Communication	USS/MODBUS RTU
Standard Digital Inputs	6
Fail-safe Digital Inputs	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 Inputs (Differential)	1 (Resolution: 10 bit)
Analog Outputs (Non-isolated)	1
PTC/KTY Interface	1 motor temperature sensor input
Protection	IP20 / UL OPEN TYPE
Physical Weight (kg)	5.2
Dimensions L x W x H (cm)	27 x 36.5 x 16

Industrial Applications

1. Conveyor Belt Systems in Manufacturing Plants

This drive is ideal for precisely controlling the speed and torque of motors driving conveyor belts in various manufacturing and assembly lines, enabling optimized material flow.

Problem Solved

Ensures precise speed control for material handling, reducing waste and optimizing throughput. The integrated Safe Torque Off (STO) function provides critical safety during emergency stops and maintenance. The 18.5 kW rating is suitable for typical industrial conveyor loads.

Variable speed controlTorque regulationMaterial handlingSafe Torque Off (STO)3-phase motor18.5 kW480V

2. Industrial Pump and Fan Control in HVAC/Water Treatment

Suitable for regulating the speed of pumps and fans in HVAC systems, water treatment facilities, or industrial cooling towers, allowing performance to be matched with demand.

Problem Solved

Significantly reduces energy consumption by dynamically adjusting motor speed to match fluid flow or air volume requirements, leveraging the ECO mode for flux optimization. The IP20 rating allows for installation in protective electrical cabinets within controlled environments.

Variable frequency drive (VFD)Pump controlFan controlEnergy efficiencyECO mode380-480VIP20

3. Mixer and Agitator Control in Chemical Processing

Applicable for controlling the speed of mixers and agitators in chemical, pharmaceutical, or food processing industries, where precise mixing intensity and duration are crucial for product quality.

Problem Solved

Maintains product consistency and quality through accurate speed and torque regulation. The high overload capability (200% for 3s, 150% for 57s) is crucial for starting and handling viscous or heavy loads, preventing motor trips. USS/MODBUS RTU communication enables seamless integration with process control systems.

Motor speed controlTorque controlMixing processesAgitatorsHigh overload capacityModbus RTU15.0 kW (HO)