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The converter for all water and air applications

The SINAMICS G120X converter is optimized for pump and fan applications in the water/wastewater industry as well as HVAC applications in building automation. This makes SINAMICS G120X the first choice for users who want to tap on the power of the elements to improve the quality of people’s lives. Part of a complete and seamless family of products, the frequency converter meets practically every requirement.

The sum of the advantages

Harness the power of the elements

SINAMICS G120X is optimized for pump and fan applications in infrastructure projects.

With SINAMICS G120X, users tap on the power of the elements for everyone’s benefit.

The new frequency converter comes as a complete product series – standardized and seamless when it comes to all supply voltages and supply types, and available in a power range extending from 0.75 kW to 630 kW. The devices are in compliance with global EMC standards and motor cable lengths of up to 150 m are permissible while maintaining EMC limit values. The integrated Safe Torque Off (STO) safety function is certified according to SIL3.

Thanks to its rugged design with optional protection against dripping water, SINAMICS G120X can be used in harsh conditions. The frequency converter can also be operated under environmental conditions according to the 3C3 standard.

Thanks to its connection to the Cloud with SINAMICS CONNECT 300, SINAMICS G120X also prepares your drive application for digitalization.

Specific functions for your field of application

Specific functions for water / wastewater applications

SINAMICS G120X provides a deragging function to sustainably remove deposits and dirt from pump impellers. The pipe filling mode allows pipes to be gently filled at the beginning of the control process before going into closed-loop controlled operation. The innovative cavitation detection function protects pumps and reduces maintenance costs. The keep running mode reduces the speed before a possible shutdown. Multipump operation (staging) allows several pumps to be controlled from just one frequency converter. Many additional functions, directly supported by the converter, makes SINAMICS G120X universally applicable in infrastructure projects.


Specific functions for HVAC applications

The flying restart function reduces starting times after brief power failures. SINAMICS G120X also provides an automatic restart function after power failures. The essential service mode maintains fan operation for smoke extraction systems or emergency ventilation systems for as long as required in extreme situations. Multipump operation (staging) allows for the control of several pumps with just one frequency converter.

Skipping critical motor speeds is another HVAC-specific feature. This reduces vibration and, in turn, premature wear.

SINAMICS G120X also provides a real-time clock for autonomous, time-controlled operation as well as a timestamp for fault and alarm reports.

System overview

Voltage /
Power range
3 AC 200 V – 240 V, -20% / +10%, 0.75 – 55 kW / 1.0 – 55 hp
3 AC 380 V – 480 V, -20% / +10%, 0.75 – 560 kW / 1.0- 700 hp
3 AC 500 V – 690 V, -20% / +10%, 3.0 – 630 kW / 4.0 – 700 hp
Frequency47 / 63 Hz +/- 5%
Control modesV/F (linear, square law, FCC, ECO), sensorless vector control (SLVC)
CommunicationsPROFINET, PROFIBUS, EtherNet/IP, Modbus RTU/USS, BACnet MS/TP, Wi-Fi via Smart Access Module

Overview of strengths

Attractive from every perspective – and fit for the future

The SINAMICS G120X series offers precisely the features that are required when addressing infrastructure applications. You get everything that you need to harness the power of nature – for everyone’s benefit.

Ready for digitalization

SINAMICS G120X: Fit for every challenge

Use the data from your SINAMICS G120X to increase transparency and productivity.

The digital transformation is in full swing. It offers a wealth of previously unimaginable possibilities when it comes to process optimization. With SINAMICS G120X, you can leverage all of these opportunities.

SINAMICS G120X can be easily connected to the Cloud via SINAMICS CONNECT 300. Your benefits: increased machine performance, increased availability, a higher degree of cost effectiveness and profitability, higher competitiveness. You not only secure the future of your company but also the quality of human lives that rely on your competence and vision.

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