Name: Siemens SINAMICS G120C 4kW Compact Frequency Inverter - INOSAKI
SKU: Siemens-6SL3210-1KE18-8AB1
Price: 454.43 USD
Availability: InStock

Technical Overview

Compact 4kW VFD for 3-phase 380-480V applications. Features integrated Class A filter, Safe Torque Off, USS/MODBUS RTU, and flexible I/O.

Key Features

Compact design for space-saving installation in control cabinets.
Side-by-side mounting capability without power reduction.
Integrated Class A filter for EMC compliance.
Integrated Safe Torque Off (STO) for enhanced safety.
Integrated fieldbus communication via USS/MODBUS RTU.
User-friendly commissioning via BOP-2, IOP-2, Smart Access Module, or SD card.
Plug-in terminals for quick and easy wiring.
High power density with low envelope dimensions.
Optimized parameter set for simplified commissioning.
High degree of service friendliness and simple maintenance.
Cloning function using BOP-2 or SD card for efficient configuration.
Input voltage range of 380-480 V +10% -20% and frequency 47-63 Hz.

Technical Specification Matrix

Parameter	Value
Input Number of Phases	3 AC
Mains Voltage	380 ... 480 V +10% -20%
Line Frequency	47 ... 63 Hz
Rated Input Current (LO)	11.4 A
Rated Input Current (HO)	10.6 A
Output Number of Phases	3 AC
Rated Output Voltage	400V IEC / 480V NEC
Rated Power (LO)	4.00 kW (5.00 hp)
Rated Power (HO)	3.00 kW (4.00 hp)
Rated Output Current (LO)	8.80 A
Rated Output Current (HO)	7.30 A
Rated Output Current (IN)	9.00 A
Max. Output Current	14.60 A
Pulse Frequency	4 kHz
Output Frequency (Vector Control)	0 ... 240 Hz
Output Frequency (V/f Control)	0 ... 550 Hz
Low Overload Capability	150 % base load current IL for 3 s, followed by 110 % base load current IL for 57 s in a 300 s cycle time.
High Overload Capability	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)	52 dB
Power Loss	124.0 W
Integrated Filter Class	Class A
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 resistive load)
Digital Outputs (Transistor)	1 (DC 30 V, 0.5 A resistive load)
Analog Inputs	1 (Differential input, 10 bit resolution)
Analog Outputs	1 (Non-isolated output)
Safety Function	Safe Torque Off (STO)
Protection Rating	IP20 / UL OPEN TYPE
Installation Altitude	1,000 m (3,280.84 ft)
Physical Weight (kg)	2.3
Dimensions L x W x H (cm)	22.5 x 27 x 8.5

Industrial Applications

1. Conveyor Belt Speed Control in Manufacturing

Utilizes the drive's variable frequency control to precisely manage conveyor belt speeds in production lines, adapting to various product types and throughput requirements.

Problem Solved

Enables flexible manufacturing by allowing dynamic adjustment of conveyor speeds, minimizing mechanical wear through soft start/stop, and ensuring operator safety with integrated Safe Torque Off in emergency situations. The 4kW power rating is suitable for many medium-duty conveyors.

Variable Speed Drive3-Phase Motor Control4kW PowerSoft Start/StopSafe Torque OffConveyor SystemsIndustrial Automation

2. Optimized Pump Control in HVAC Systems

Employs the frequency inverter to regulate the speed of pumps in heating, ventilation, and air conditioning (HVAC) systems, matching fluid flow to real-time demand.

Problem Solved

Significantly reduces energy consumption by preventing pumps from running at full capacity unnecessarily. It also minimizes noise and vibration, extends pump lifespan, and the integrated Class A filter aids in maintaining electromagnetic compatibility within building environments.

HVACPump ControlEnergy EfficiencyVariable Frequency Drive (VFD)Modbus RTU Communication380-480V OperationEMC Filter

3. Demand-Based Industrial Fan Speed Management

Controls the operational speed of industrial fans in workshops, warehouses, or processing facilities to maintain desired air quality, temperature, or pressure levels.

Problem Solved

Achieves substantial energy savings by adjusting fan output precisely to ventilation needs, rather than continuous high-speed operation. It contributes to noise reduction and provides adaptable environmental control. The IP20 rating allows for secure installation within a protective control cabinet.

Industrial VentilationFan ControlEnergy SavingV/f ControlIP20 ProtectionCompact DriveAir Quality Control