Name: Siemens SINAMICS G120C 1.5kW Frequency Inverter - INOSAKI
SKU: Siemens-6SL3210-1KE14-3AB2
Price: 367.79 USD
Availability: InStock

Technical Overview

Compact 3-phase, 380-480V frequency inverter with 1.5kW (LO) / 1.1kW (HO) output, IP20, and integrated Safe Torque Off for precise motor control.

Key Features

Operates in V/f or Sensorless Vector Control modes for flexible motor management.
Integrated Class A filter for electromagnetic compatibility (EMC) in industrial environments.
Supports USS/MODBUS RTU communication for seamless integration into control systems.
Equipped with 6 standard digital inputs, 1 fail-safe digital input, 2 digital outputs, 1 analog input, 1 analog output, and 1 motor temperature sensor input (PTC/KTY).
Compact design (FSAA frame size) for space-saving installation in control cabinets.
High overload capability: 150% for 3s, 110% for 57s (LO) or 200% for 3s, 150% for 57s (HO) in a 300s cycle.
Rated for ambient temperatures up to 40°C.
Easy commissioning and cloning via optional BOP-2, IOP-2, or SD card.

Technical Specification Matrix

Parameter	Value
Input Phases	3 AC
Line Voltage	380 ... 480 V (+10% / -20%)
Line Frequency	47 ... 63 Hz
Rated Current (Low Overload)	5.50 A
Rated Current (High Overload)	4.50 A
Output Phases	3 AC
Rated Output Voltage	400V IEC / 480V NEC
Rated Output Power (Low Overload)	1.50 kW (2.00 hp)
Rated Output Power (High Overload)	1.10 kW (1.50 hp)
Rated Output Current (Low Overload)	4.10 A
Rated Output Current (High Overload)	3.10 A
Max. Output Current	6.20 A
Pulse Frequency	4 kHz
Output Frequency (Vector Control)	0 ... 240 Hz
Output Frequency (V/f Control)	0 ... 550 Hz
Power Factor λ	0.70 ... 0.85
Efficiency η	0.97
Sound Pressure Level (1m)	49 dB
Power Loss	61.9 W
Integrated Filter Class	Class A
Communication Interface	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	1 (Differential, 10-bit resolution)
Analog Outputs	1 (Non-isolated)
Motor Temperature Sensor Input	1 (PTC/KTY compatible)
Protection Type	IP20 / UL Open Type
Safe Torque Off (STO)	SIL 2 (EN 61508)
Ambient Temperature	0°C to +40°C
Physical Weight (kg)	1.3
Dimensions L x W x H (cm)	22.5 x 27 x 8.5

Industrial Applications

1. Conveyor Belt Speed Control in Manufacturing

This inverter precisely controls the speed of AC induction motors driving conveyor belt systems in manufacturing facilities. The sensorless vector control enables high torque at low speeds for starting heavy loads or maintaining consistent speeds with varying materials. The integrated Safe Torque Off (STO) function provides a critical safety mechanism for immediate, controlled stops in emergencies, safeguarding personnel and machinery.

Problem Solved

Provides precise speed and torque control for material handling, optimizing throughput, reducing mechanical wear, and ensuring operational safety during production and maintenance.

Sensorless Vector Control1.5 kW400VModbus RTUSafe Torque Off (STO)Variable Frequency Drive (VFD)Conveyor Systems

2. Fan and Pump Control in HVAC Systems

The inverter is well-suited for variable speed control of fans and pumps within industrial HVAC systems. Its 1.5 kW Low Overload (LO) rating is specifically designed for quadratic load applications typical of fans and pumps, allowing for significant energy savings. The integrated Class A filter ensures EMC compliance, while Modbus RTU communication facilitates seamless integration with Building Management Systems (BMS) for centralized control and monitoring.

Problem Solved

Optimizes energy consumption by dynamically adjusting fan and pump speeds according to demand, enhancing system efficiency, reducing operational costs, and maintaining a compliant electrical environment.

Fan/Pump Control1.5 kW (LO)400VIP20Class A FilterModbus RTUHVACEnergy Efficiency

3. Small Mixer/Agitator Drives in Industrial Processes

For managing small to medium-sized mixers or agitators in general industrial process areas (excluding washdown zones due to IP20 rating), this frequency inverter provides reliable speed and torque management. The 380-480V three-phase input is standard for industrial power grids, and its robust overload capabilities (up to 200% High Overload) ensure stable operation even with viscous materials or sudden load variations. Its compact size simplifies integration into existing control cabinets.

Problem Solved

Ensures consistent product quality through precise mixing and agitation control, protects the motor from damage due to unexpected load fluctuations, and integrates efficiently into process control architectures via standard fieldbus communication.

Mixer DrivesAgitator1.1 kW (HO)400VIP20Sensorless Vector ControlOverload CapabilityModbus RTU