Siemens SINAMICS G120C 110kW Frequency Converter

Technical Overview

110kW 380-480V 3AC frequency converter with 150% overload for 3s, IP20, PROFINET-PN, and Safe Torque Off.

Key Features

Integrated Class A EMC filter.
Safe Torque Off (STO) integrated safety function.
PROFINET-PN integrated fieldbus communication.
Quick and simple operation/commissioning via PC, USB, or operator panel.
Card slot for cloning parameter sets for intuitive series commissioning.
Energy-optimized vector control (SLVC) and automatic flux reduction for boosted energy efficiency.
Compact footprint design (FSF size: 708x305x357 mm HxWxD).
Supports various motor types including induction, permanent magnet synchronous, and synchronous reluctance motors.
Efficiency up to 98%.

Technical Specification Matrix

Parameter	Value
Rated Power	110.0 kW
Overload Capability	150% for 3 seconds
Input Voltage	380-480 V 3AC +10/-20%
Frequency Range	47-63 Hz
Integrated Filter	Class A
Digital Inputs (DI)	6
Digital Outputs (DO)	2
Analog Inputs (AI)	1
Analog Outputs (AO)	1
Safety Function	Safe Torque Off (STO)
Integrated Fieldbus	PROFINET-PN, EtherNet/IP
Degree of Protection	IP20/UL open type
External Supply Voltage	24 V
Physical Weight (kg)	67
Dimensions L x W x H (cm)	74.5 x 46.9 x 38.5

Industrial Applications

1. High-Power Industrial Pump Control

The 110.0 kW rated power and 380-480 V 3AC input make this converter ideal for driving large industrial pumps in water/wastewater treatment or process industries. The 150% overload capability handles startup surges, and IP20 is suitable for control cabinet installation. Integrated PROFINET-PN ensures seamless integration into modern automation systems for precise flow control and monitoring. Safe Torque Off (STO) is critical for safety during maintenance or emergencies.

Problem Solved

Provides precise and safe control of high-power pumps, optimizing energy consumption and ensuring operational safety in critical fluid handling processes.

Variable frequency drivepump control3-phase AC110 kWPROFINETSafe Torque OffIP20overload capability

2. Heavy-Duty Conveyor Belt Systems

For conveyor systems moving heavy loads, particularly during startup or when encountering temporary blockages, the 110.0 kW power rating and 150% overload for 3 seconds provide the necessary torque and robustness. The 380-480 V 3AC input is standard for industrial motor applications. PROFINET-PN enables synchronized control with other production line automation, and digital/analog I/Os facilitate integration with sensors for speed, position, and safety interlocks. STO is vital for personnel safety.

Problem Solved

Delivers reliable and safe speed and torque control for heavy-duty conveyor belts, preventing mechanical stress and ensuring operator safety during operation and maintenance.

Conveyor systemmotor control110 kW3-phase ACoverload protectionPROFINETSafe Torque OffIP20digital I/O

3. HVAC Fan Control for Large Facilities

The 110.0 kW power and 380-480 V 3AC operation are well-suited for large HVAC fan systems in commercial or industrial buildings. Its variable frequency drive capability allows for precise fan speed control, leading to significant energy savings and optimized air management based on demand. The IP20 enclosure is appropriate for installation in electrical rooms. PROFINET-PN integration facilitates communication with building management systems (BMS) for centralized control and diagnostics. STO is important for safe maintenance of fan units.

Problem Solved

Enables energy-efficient and precise control of high-power HVAC fans, allowing for demand-based air flow, reducing operational costs, and improving environmental control.

HVACfan controlenergy efficiencyvariable frequency drive110 kW3-phase ACPROFINETIP20building automation