Siemens SINAMICS G120C 0.75kW VFD 380-480V IP20

Technical Overview

Compact 0.75kW (1HP) 380-480V 3AC VFD with 2.20A output, IP20, PROFINET/Ethernet/IP, and STO safety function. Ideal for precise motor control.

Key Features

Compact FSAA frame design for installation in tight control panel spaces.
Wide input voltage range of 380-480VAC three-phase, accommodating various industrial power grids.
Integrated PROFINET/Ethernet/IP communication for fast and reliable network integration.
Forced-air cooling system with a built-in fan ensures stable thermal performance during continuous operation.
High output flexibility, supporting motor frequencies up to 550 Hz in V/f control mode.
Supports both sensorless vector control and V/f control for versatile motor operation.
Comprehensive I/O interface including 6 digital inputs, 2 digital outputs, 1 analog input, 1 analog output, and 1 motor temperature input.
Overload capability of 150% for 3 seconds and 110% for 57 seconds in a 300-second cycle (Low Overload).
Suitable for wall mounting within control cabinets.
Integrated USB interface (Mini-B type) for PC connection and simplified commissioning.

Technical Specification Matrix

Parameter	Value
Input Voltage	380-480 VAC, 3-Phase (+10% / -20%)
Line Frequency	47-63 Hz
Rated Power (Low Overload)	0.75 kW (1 HP)
Rated Power (High Overload)	0.55 kW (0.75 HP)
Rated Output Current (Low Overload)	2.20 A
Max. Output Current	3.40 A
Output Frequency Range (V/f control)	0-550 Hz
Output Frequency Range (Vector control)	0-240 Hz
Pulse Frequency	4 kHz
Overload Capability (LO)	150% base load current for 3s, then 110% for 57s in 300s cycle
Overload Capability (HO)	200% base load current for 3s, then 150% for 57s in 300s cycle
Enclosure Rating	IP20 / UL Open Type
Cooling Method	Forced air (1 fan)
Communication Interfaces	PROFINET, EtherNet/IP
Safety Function	Safe Torque Off (STO), SIL2 / PL d Cat.3
Digital Inputs	6
Digital Outputs (Relay)	1 (DC 30 V, 0.5 A)
Digital Outputs (Transistor)	1 (DC 30 V, 0.5 A)
Analog Inputs	1 (Differential, 10-bit resolution)
Analog Outputs	1 (Non-isolated)
Motor Temperature Sensor Input	1 (PTC/KTY)
Integrated Filter	Unfiltered
Mounting Type	Wall mount
Frame Size	FSAA
Power Loss	38.6 W
Physical Weight (kg)	1.2
Dimensions L x W x H (cm)	22.5 x 27 x 8.5

Industrial Applications

1. Conveyor Systems in Manufacturing

This drive is ideal for precisely controlling the speed and torque of conveyor belts, enabling flexible adjustment of production rates and gentle material handling for various products. Its 0.75kW power output is well-suited for smaller to medium-sized conveyor applications.

Problem Solved

Provides accurate and dynamic speed control for conveyors, preventing abrupt starts/stops that could damage fragile goods, and allowing for efficient adjustment to demand, while the STO function ensures operator safety during interventions.

Variable speed controlTorque regulationMaterial handlingPROFINET integrationSafe Torque Off0.75kW motor

2. Pump Control for HVAC or Water Treatment

The Siemens G120C 0.75kW VFD can effectively regulate pump flow and pressure in HVAC systems or small water treatment plants. By adjusting the pump's motor speed based on demand, it significantly reduces energy consumption and optimizes process control.

Problem Solved

Optimizes energy usage and process control by dynamically matching pump performance to system requirements, minimizing wear and tear. The IP20 rating ensures safe operation within enclosed control cabinets, typical for these environments.

Energy efficiencyPump controlVariable flowPressure regulation380-480VACIP200.75kW

3. Industrial Fan Regulation

Suitable for optimizing ventilation and air circulation in industrial facilities, drying processes, or exhaust systems. The drive's ability to precisely control fan speed results in substantial energy savings and improved environmental or process conditions.

Problem Solved

Reduces operational costs and enhances environmental control by adjusting fan output to exact requirements, avoiding constant full-speed operation. Its compact design and PROFINET connectivity facilitate easy integration into existing building management or industrial automation systems.

Fan speed controlVentilation optimizationEnergy savingProcess controlCompact designPROFINET0.75kW