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SiemensVariable Frequency Drives

Siemens Sinamics G120 Drive

The Siemens Sinamics G120 is a modular AC drive system consisting of Power Modules (PM) and Control Units (CU) that can be mixed and matched to exactly fit the application requirements. Power Modules range from 0.37 kW to 250 kW with book-size or chassis formats, while Control Units offer different fieldbus interfaces and application-specific firmware. The G120 supports sensorless vector control, V/F control, and closed-loop vector control with encoder feedback. Integrated safety functions include Safe Torque Off (STO), Safe Stop 1 (SS1), and Safely Limited Speed (SLS) certified to SIL 3. The BOP-2 operator panel and SINAMICS Startdrive engineering tool in TIA Portal simplify commissioning and diagnostics.

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Technical Specifications

Power Range0.37–250 kW
Input Voltage3-phase 380–480 V / 660–690 V
Control MethodsSensorless vector, V/F, closed-loop vector
SafetySTO, SS1, SLS (SIL 3)
CommunicationPROFINET IRT, PROFIBUS, EtherNet/IP
ProtectionIP20 / IP21
CoolingInternal fan, optional liquid-cooled variants

Applications & Use Cases

Variable speed pumping for municipal water supply systems

Belt conveyor speed control in mining and material handling

Industrial fan and cooling tower capacity modulation

Centrifugal compressor variable-speed anti-surge control

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Product Details

Brand
Siemens
Category
Variable Frequency Drives
Availability
In Stock
Product Code
siemens-sinamics-g120

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