Siemens Answers with SINAMICS G120E NEMA 1 or 12  Enclosed Drives


SINAMICS G120E is a range of configurable enclosed variable speed drives for a broad spectrum of industrial applications, based on SINAMICS G120 modular drive components. The drives are air-cooled and available in NEMA 1 or NEMA 12 (ventilated) enclosures.

All models utilize a motor side IGBT inverter with PWM technology. SINAMICS G120E is offered with three variants on the line side

  • Standard 6-pulse

  • Clean Power 18-pulse non-regenerative diode front end

  • Efficient Infeed with Innovative IGBT based technology for power regeneration to the supply system

SINAMICS G120E drives are UL listed to UL508C, and are available with optional Seismic Certification.  Scroll down for more details.


Communicate without limits

Siemens brings the established power and flexibility of SINAMICS G120 to your EtherNet/IP network, with direct connectivity to PROFIBUS, PROFINET, EtherNet/IP™ and standard Ethernet.

Learn more about Siemens solutions for EtherNet/IP™


  • NEMA 1 enclosed drive, optionally NEMA 12 (ventilated) with air filters

  • UL508C listing (file no. E319311)

  • SCCR (short circuit current rating) 65 kA

  • Enclosure
    - For 6-pulse and regenerative Efficient Infeed: wall mount: up to 60 HP, floor standing: 75 HP and up
    - For 18-pulse clean power: floor standing (all ratings)

  • Circuit breaker disconnect with flange mount operator and mechanical door interlock

  • Intelligent operator panel (IOP), door mounted and wired

  • Cable entry top or bottom, line and motor side

Control Units

A broad range of control units is available to provide the specific functionality best suited to the application. The choice of control unit determines:

  • Regulator control modes including Volts/Hz, sensorless vector and optionally closed loop vector with speed feedback encoder, as well as Easy Positioning (EPos) with position encoder

  • Quantity and type of digital and analog inputs and outputs

  • Bus communication protocol – choices include Modbus RTU, BacNet MS/TP, USS, PROFIBUS, PROFINET, as well as EtherNet/IP

  • PID controller, Free Function Blocks for logic and arithmetic functions

  • Application-specific functionality including for example hibernation mode for energy savings, load monitoring (for belts or dry pump), motor staging, multi-zone control and others

  • Safety Integrated functions - Click here to learn more about Safety-Integrated Technology for Drives

Technical Information

All Versions

Supply Voltage

460 – 480 V (optionally 380 – 480 V), 3-ph, 50/60 Hz

Operating Temperature

32°F to 104°F (0°C to +40°C)
Up to +122°F/+50°C with de rating


Listed to UL508C, file no. E319311


6-pulse diode front end with power module PM240

Power Range

1 to 200 HP (0.75 - 132 KW) at 460 V AC


Input line reactor

Integral braking chopper (requires external braking resistor)

18-pulse Clean Power diode front end with power module PM240

Power Range

50 to 200 HP (37 - 132 KW) at 460 V AC


Always meets harmonic limits per IEEE 519-1992 at VFD input terminals

Phase shifting autotransformer and input line reactor assembly

Integral braking chopper (requires external braking resistor)


Efficient Infeed with power module PM250

Power Range

25 to 125 HP (18.5 - 90 KW) at 460 V AC


The line side Efficient Infeed provides the ability to feed energy back into the supply system to break the load without wasting energy in a braking resistor. This saves space, eliminates wiring and reduces heat losses.

Efficient Infeed technology uses an IGBT converter that provides reduced line harmonics, without needing a line reactor, for even more space savings and lower heat losses.

Seismic Certification

Seismic test video - IBC
Seismic certification was performed by, and these videos/images are used with the permission of The VMC Group (

SINAMICS G120E drives are available with seismic certification per the following standards:

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