Submersible pumping conditions are notoriously harsh — Subduer gives you greater control and extends the life of your pump

Whether it’s caused by pump off or a down pump, you can’t afford to shut down your ESP, no matter the conditions. Subduer can keep you running.


Subduer drives allow a submersible pump to produce at a wider volume range than any fixed-speed control system, running your pump at a higher speed than normally possible, or by slowing it down. You can target a specific amount of fluid above the pump and Subduer will adjust the speed of the pump up or down to achieve your target. Once fluid level is drawn down, it will match production levels rather than stopping the motor. It also uses the information from your downhole sensor to protect the pump against vibration or the motor against unsafe operating temperatures.  All of these values are available on the WiseGuy display both visually and via data log, as well as on your SCADA system.

The built-in sine wave filter in Subduer protects your transformer, cable system and motor against voltage spikes, and the standard sine wave monitor board ensures the filter is working properly. By providing a utility grade sine wave to your motor, it runs cooler, longer and more reliably.

Subduer helps you keep your pump operating conditions exactly where you want them.  By eliminating common problems like cavitation, gas interference, and unknown motor heating, Subduer can extend the life of your equipment and, in most cases, increase production.


HP Range

5-1250KVA +

Input Range 380 – 500 VAC
Other voltages available, please consult SPOC


45-66 Hz Input Frequency


Output: AC Volts maximum

Std: Input Voltage Base,
AFE: Input Voltage x 1.2 Max

Output Frequency Range: Hz

0 – 320 Hz


110% for 1 minute standard

NEMA 3R, Harsh Environment Enclosure

Standard with Sun Shield & Heat Exhaust System

Cold Weather Heater & Thermo Switch


Extreme Cold Weather Heat Kit


Listings Available

UL, cUL Optional,
CE Optional

WiseGuy Color Touch Screen Operator Interface



Modbus RTU, TCP Standard, others available

Altitude (Maximum without De-Rate)

3300 ft. (1000m)

Line Voltage Variation

+10/-15% Standard,
+10/-20% AFE Option



Power Factor


WiseGuy: The easiest VFD interface available

Smart. Intuitive. Easy. That’s what customers are saying about the WiseGuy operator interface that comes on every Subduer series drive package. If you know industry terminology like “Pump Run Time,” “Motor Current” or “Pump Intake Pressure” then you can operate the Subduer. It’s just that easy.

Knowledge is power in the hands of your pumpers and the WiseGuy gives you live trending history, date and time stamp, data logging, single touch USB downloads, and much more in the industry’s easiest-to-use, smart and intuitive drive package. All of the information from your down hole sensor is integrated into WiseGuy, allowing you to get all your data in one place and simplifying programming. Your information is easily transferred to your SCADA system for remote collection and analysis.  Using the WiseGuy, the most recent 30-day production history and downhole conditions are viewable and downloadable.

Service is always a standard feature

Service is always a standard feature

The oilfield is a difficult, often brutal place, especially for submersible applications. But we understand the pressure to keep your pumps running, no matter the conditions. Our drives are engineered and built to run through the extremes of heat and cold, through dust and dirt. That said, we realize that in the oilfield everything is susceptible to break, sooner or later. If one of our drives goes down, our technical team is available 24/7.

We will have you back up and running in hours, not weeks. As one of our clients said: “In the oilfield, there is no tomorrow. Only today.”

That is the belief we live by.

We also have the most comprehensive extended warranty in the entire industry — DriveShield. With our extended warranty, you are protected at all times. Who else offers 6 years of protection, even against lightning strikes?

Our low-harmonic drives keep you running reliably, efficiently and in compliance

Harmonic drive compliance becomes more critical every day. At SPOC, we focus on the entire system, providing low-harmonic drives to ensure that you continue running reliably, efficiently and in compliance of IEEE519 and EN-6100-3-2.

We manufacture every type of low-harmonics drive, using the latest technology available.  Everything we do is tailored to your needs.

In general, we recommend the Active Front-End VFD  for minimizing harmonics in fields incorporating variable speed drives. This technology is electronically based, not magnetically based. It meets the IEEE519 under every scenario and all loading conditions, regardless of voltage imbalance or source impedance. It is so advanced it can actually correct for low-voltage conditions from marginal systems and correct power factor within the electrical system, saving you money. You can read more about our harmonics solutions here.

Our low-harmonic drives keep you running reliably, efficiently and in compliance