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Toshiba adjustable/variable speed drives (0.5 HP to 1,200 HP and 230 V to 600 V) from Stowers Power Systems are available for delivery anywhere in the U.S.


Toshiba variable frequency drives are designed with the end-user in mind, and combines a rugged, proven power platform with the latest technologies to provide users with a smarter, stronger, more reliable drive with flexible application control.

To learn more about how Stowers can provide you with Toshiba products that can keep your job on track, talk to your Stowers power systems sales representative today.


Advanced Design separates Toshiba drives from the competition. The modular construction of Toshiba drives allows the unit to be installed into nearly any application quickly and easily. The laminated bus-plane technology used in Toshiba drives allows for a reduced component count, enhanced reliability, and easier service.

Simple Programming allows the user to operate Toshiba drives drive with little or no programming. At the same time, Toshiba drives maintains one of the most expansive parameter sets in the industry, allowing you to tailor the drive to your specific application.

Tough Environmental Conditions are no problem for Toshiba drives drive. Designed to operate in extreme environments, Toshiba drives can operate in temperatures up to 122°F without derating and can also be configured for use in temperatures of up to 140°F. Designed to be used in a sealed cabinet, Toshiba drives allows integrators to mount the heat-sink externally to the drive cabinet for simple and eicient cooling of the unit.

Toshiba’s Proprietary Windows®-Based ASD Pro Software is available at no additional cost. This easy to use software provides a full range of programming and monitoring tools for Toshiba drives. Trending and logging features allow the user to save and transfer parameters and export data and graphs to electronic files that easily convert into spreadsheets or graphs for field and validation reports.


The S11 adjustable speed drive is the next generation of micro drives. The S11 provides maximum torque with precise speed control and features an easy-to-use, quiet, and compact design. A removable terminal board, larger terminals, bidirectional speed search and PID control are just a few features that make this drive stand out against other micro drives. No other micro drive delivers such reliable performance and extensive capabilities at such a competitive price.
Key Features
IP54-Rated Enclosure
The enclosure helps to protect the S11 against dust and harsh water environments, including an operation pane, operation switch, frequency-setting potentiometer, two additional slots for switches, and an operator circuit breaker.

Powerful True-Torque Control The S11 offers 240% torque at 1.0HZ, including one-step motor auto-tuning and 0.1% speed regulation on a 60:1 speed range.

High Initial Torque
The S11 surpasses 1Hz through 200% instantly at startup from low speeds. Smooth operation in the regeneration area and in the motoring area is possible through proprietary power vector control. Equipped with an energy savings mode, applications reach a higher level of efficiency. In addition, you can activate auto-tuning and automatic torque-boost in a single step.


oshiba's heavy duty S15 adjustable speed drive is a compact and high performance drive designed for controlling a wide range of variable and constant torque applications. This micro-drive is capable of working with permanent magnet (PM) motors, which allows for greater flexibility in selecting a motor for an application and optimizes energy savings. A robust design allows the S15 to operate in extreme temperatures and environments. In addition, the S15 features advanced technologies, and an expanded PID control allows a greater level of precise control and operation of difficult level control applications. No other micro-drive delivers such reliable and extreme performance with extensive capabilities at such a competitive cost.

The S15 is one of the most compact drives available on the market. This drive makes a fantastic choice if footprint or price is an issue for the end user as it still offers heavy duty ratings through a 150%/60s overload rating and up to 60C ambient


The Toshiba P9 low voltage adjustable speed drive is a revolution in pump control. By incorporating Toshiba's proprietary, ground-breaking Virtual Linear Pump (VLP™) Technology, the P9 directly, precisely, and linearly controls pressure, temperature, or flow. The P9 eliminates many obstacles users thought were an integral part of pump control and sets a new standard in ingenuity, performance, and ease-of-use for the pump industry.

Advanced pumping features include:

  • Start & Stop Points: These points determine when to start and stop the pump based on user-set values and system feedback on pump water levels. These points work with a delay timer to ensure that frequent fluctuations in the system feedback do not unnecessarily start and stop the pump.
  • Sleep Timer: The timer shuts off the pump in order to reduce energy consumption and prolong the lifespan of pumping equipment after it has run at the VLP minimum for a user-specified amount of time.
  • Run External Devices Feature: This feature turns on external booster pumps to support the primary pump when necessary to increase energy savings and minimize pump and system failures
  • No-Flow/Low NPSH Cut-Off Feature: This feature for the P9 LV Pumping Control stops the pump once loss of feed water or a closed output valve has been detected to protect against cavitation.
  • Sealing Water/Vacuum Priming Feature: This P9 feature automatically controls and improves system reliability by monitoring water flow and water level, and starting the pump once water flows through the seal or the pump is full of water.


The H9 adjustable speed drive is the most advanced heavy duty drive ever offered by Toshiba. It is a blend of a robust power platform and a state-of-the-art control scheme. With its dual 32-bit processor controls, the H9 provides the ability to operate the toughest of applications while still maintaining a high level of control.


The G9 adjustable speed drive is the most advanced severe duty drive ever offered by Toshiba. It is a blend of a robust power platform and a state-of-the-art control scheme. With its 115% continuous overload rating and its dual 32-bit processor controls, the G9 provides the ability to operate the toughest of applications while still maintaining a high level of control.

Matt Kirkpatrick
865-595-1093 or 865-414-0202