西门子 G120C 变频器 一体式变频器

SINAMICS G120C, frame sizes FSAA to FSF, with Intelligent Operator Panel IOP‑2

SINAMICS G120C compact converters offer a well-balanced combination of features to address a wide range of applications. They are compact, rugged devices that are easy to operate and can be optionally equipped with a basic or advanced operator panel.

SINAMICS G120C converters are especially suitable when it comes to meeting the requirements of system integrators, OEMs and distributors regarding high productivity and tailored performance.

Compact design

Frame size FSAA allows easy DIN rail mounting

Side-by-side design

High power density, low envelope dimensions

Simple installation in the tightest space

Low space requirement

Use in small control cabinets, close to the machine

Optimized parameter set

Optimized commissioning

Compact Operating Instructions

BOP‑2 or IOP‑2 Operator Panels can be used

Integrated USB connection

Simple and fast software parameter assignment

Simple to use during commissioning and in operation

Minimized training costs, existing SINAMICS know-how can be used

High degree of service friendliness, simple maintenance

Plug-in terminals

Cloning function using BOP‑2, IOP‑2, or memory card

Operating hours counter for "drive on" and "motor on"

Fast mechanical installation

Intuitive standard commissioning

Component of Totally Integrated Automation

Energy-efficient, sensorless vector control

Automatic flux reduction with V/f ECO

Integrated energy saving computer

Safety Integrated (STO)

Communication versions with PROFINET / EtherNet/IP, PROFIBUS DP, USS/Modbus RTU

Wireless commissioning, operation and diagnostics via mobile device or laptop thanks to the optional SINAMICS G120 Smart Access

Connection to the Cloud MindSphere with the optionally available SINAMICS CONNECT 300 IoT Gateway

Varnished modules

Operation up to an ambient temperature of 60 °C

Extended warranty

For SINAMICS G120C, Siemens offers an optional extension of warranty up to 5½ years via Service Protect:

Free for the first 6 months after registering the product at: 

With costs for 3 or 5 additional years

More information is available at:

Concerning standard warranty please ask your partner at Siemens. Your partner can be found in our Personal Contacts Database at:

SINAMICS G120C is a compact converter for control cabinet mounting in IP20 degree of protection where the Control Unit (CU) and Power Module (PM) function units are combined in one device.

The compact mechanical design and the high power density allow these devices to be installed in machine control enclosures and control cabinets for maximum space utilization. The SINAMICS G120C compact converter can be butt-mounted directly, without derating at temperatures up to 40 °C (104 °F).

SINAMICS G120C, frame size FSAA with BOP-2

SINAMICS G120C can be integrated into the widest range of applications, either using the integrated digital and analog inputs or via the integrated fieldbus interface (available in USS, Modbus RTU, PROFIBUS, PROFINET, EtherNet/IP versions). Especially the product versions with integrated PROFIBUS/PROFINET interface make full integration into the Siemens TIA family possible, therefore allowing the advantages of the seamless TIA product family to be fully utilized. SINAMICS G120C devices are preset in the factory so that they can be immediately connected to PROFIBUS or PROFINET fieldbus systems without parameterization.

Wireless commissioning, operation and diagnostics via mobile device or laptop thanks to the optional web server module SINAMICS G120 Smart Access enabling user-friendly operation and easy access to the converter, even if this is installed in areas difficult to access.

With the optionally available SINAMICS CONNECT 300 IoT Gateway, connection to the Cloud MindSphere is possible.

SINAMICS G120C is also equipped with the safety function STO (Safe Torque Off) as standard, which is used to safely stop drives. As a consequence, machine manufacturers can simply comply with current machinery directives with minimum associated costs.

SINAMICS G120C can control asynchronous (induction) motors in the power range from 0.37 kW up to 132 kW (0.5 hp to 200 hp). Reliable and efficient motor operation is achieved by using state-of-the-art IGBT technology combined with vector control. The extensive range of functions integrated in the SINAMICS G120C also offers a high degree of protection for the converter and motor.

Line-side components

Line filter

SINAMICS G120C can be ordered with or without integrated Class A line filters. Optionally, an external Class B line filter can be used for classifying in a higher interference class.

Line reactors

Line reactors smooth the current drawn by the converter and thus reduce harmonic components in the line current. Through the reduction of the current harmonics, the thermal load on the power components in the rectifier and in the DC link capacitors is reduced as well as the harmonic effects on the supply. The use of a line reactor increases the service life of the converter. A DC link reactor is integrated in frame sizes FSD to FSF, and therefore no line reactor is required.

Recommended line-side overcurrent protection devices

Overcurrent protection devices are absolutely necessary for the operation of the converters. The table listed in the section "Recommended line-side overcurrent protection devices" provides recommendations according to IEC and UL regulations, depending on the area of application. Recommendations on further overcurrent 

More information about the listed Siemens fuses is available in Catalog LV 10 as well as in the Industry Mall.

DC link components

Braking resistors

Excess energy in the DC link is dissipated in the braking resistor. The braking resistors are designed for use with the SINAMICS G120C. This has an integrated braking chopper (electronic switch). For the electromagnetically compatible connection of an optionally connectable braking resistor, the corresponding shield connection kit is to be ordered for frame sizes FSD to FSF.

Load-side power components

Output reactors

Output reactors reduce the rate of voltage rise (dv/dt) and the height of the current peaks, and enable longer motor cables to be connected.

Supplementary system components

IOP‑2 Intelligent Operator Panel