The FDU AC Drive offers unmatched performance and control for variable torque applications such as pumps, fans, compressors, and blowers. A wide array of features such as patented Shaft Power Monitoring, and multi-pump control are also standard.

Key Features

  • 3 - 1,500 Amps

  • NEMA enclosure (available in NEMA 1 and NEMA 12 configurations)

  • Unique Shaft Power Load Curve Monitoring and Protection

  • Pump control for up to 7 pumps

  • Automatic Pump Rinsing

  • Sleep function

  • Process language feature, i.e., display GPM

  • Copy function via detachable display unit

  • Smaller footprint than competing VFDs





NEMA 1 (IP20) version

SUPPLY VOLTAGE230-480V, 3-phase
RATED CURRENT25 - 244 Amps
APPROVALSGlobal Standards

NEMA 12 (IP54) version

RATED POWER0.75 - 3,000kW
SUPPLY VOLTAGE230-690V, 3-phase
RATED CURRENT2.5 - 3,000 Amps

Robust & user-friendly

Protection from Damage & Downtime

Soft starts and stops protect your equipment. Reduced start currents result in smaller fuses, cables, and energy bills. Controlled stops eliminate the risk of water hammer and other costly damage.

A built-in shaft power monitor and a unique Load Curve Protection function protect your process by immediately detecting any situation that could cause inefficiency or damage. Early warning and safety stops allow preventative action.


Energy Savings & Optimized Operation

The FDU regulates flow and pressure by continuously adapting motor speed. No energy wasted and no unnecessary equipment wear. A sleep function further reduces energy consumption by pausing the motor when it does not need to run. An automatic pump rinsing function also increases efficiency.

Multiple pump or compressor control is a reliable and cost-efficient method of keeping a constant flow or pressure despite varying demands. The FDU can control up to seven pumps.


User-friendly & Reliable Operation

Operation parameters can be set in your own process unit - m3/min, bar, Pascal, etc. - making monitoring easier and more reliable. The removable control panel has a copy function for transferring settings to other FDU units. Switching between local and remote control can be accomplished with the push of a single key on the control panel. The virtual connection of logical functions, comparators, and timers, means no cables or external I/Os are required.

models & ratings

Available in NEMA 1 and NEMA 12 configurations

The Emotron FDU is available in both NEMA 1 (IP20/21) and NEMA 12 (IP54) configurations. The robust steel construction of the NEMA 12 version means that the drive can be installed close to the application, reducing the cost of additional cabinets and motor cables. The 300 - 1,500A units (NEMA 1 modules) are also available in compact CG-designed NEMA 12 cabinets. The 25 - 244A, NEMA 1 series units are optimized for mounting in control cabinets or on an electrical room wall. Its robust yet compact design allows for easy access to power terminals. Extended temperature range up to 130°F (55°C).


FDU Frame Sizes:

Emotron FDU 2.0 Variable Frequency Drive in NEMA 12 / IP54 configuration

Emotron FDU 2.0 Variable Frequency Drive in NEMA 12 / IP54 configuration

NEMA 12 version FDU 2.0 Models

Additional models thru 2,100HP available.
Emotron FDU 2.0 Variable Frequency Drive in NEMA 1 / IP20 configuration

Emotron FDU 2.0 Variable Frequency Drive in NEMA 1 / IP20 configuration

NEMA 1 Version FDU 2.0 models

Additional models thru 250HP available.

Product Literature

Click here to download product literature for the FDU Variable Frequency Drive.

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