Eaton SPI9000 VFD System Drives

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A variable frequency drive (also known as a VFD) adjusts an electric motors speed to closely match output application requirements while also reduces energy savings of 10 to 50 percent. Soft start motor controls lower the demands on a motor during start-up, conserving energy and extending the life of the mechanical system. Whether the application calls for an ultra-compact solution, clean power, or future configurability, Eaton’s Cutler-Hammer drives answer Industrial, HVAC, Water/Wastewater Treatment and other application demands. Eaton offers VFD system drives for nearly every application.

SPI9000, SPA9000, SPN9000 Drives

Eaton SPI9000 VFD System DrivesEaton SPI9000 VFD system drives offer a comprehensive range of common direct current (DC) bus drive products. The front-end SPI9000 vfd units convert a mains alternating current (AC) voltage and current into a DC voltage and current. The power is transferred from the mains to a common DC bus (and, in certain cases, vice versa). The SPA9000 (active front-end) unit is a bi-directional (regenerative) power converter for the front end of a common DC bus driveline up. An external LCL filter is used at the input. This unit is suitable in applications where low mains harmonics are required. The SPN9000 (non-regenerative front-end) unit is a unidirectional (motoring) power converter for the front-end of a common DC bus drive line-up. The device operates as a diode bridge using diode/thyristor components. A dedicated external choke is used at the input. The unit has the capacity to charge a common DC bus. This unit is suitable as a rectifying device when a “normal” level of harmonics is accepted and no regeneration to the mains is required.

Features and Benefits

  • Comprehensive range available for almost every application
  • UL and cUL listed
  • Meets NEC, NEMA and IEEE standards
  • Alphanumeric keypad available for most drives
  • Air cooling
  • 460 V and 690 V, 1-1/2 to 2000 Hp

Eaton’s common DC bus product portfolio fulfills solution demands with a flexible architecture. Eaton SPI9000 VFD System Drives are built on Eaton SPX9000 technology which product family covers a number of front-end units and VFD units in the many power ranges.

To learn more about the Eaton SPI9000 System Drives or to download technical information, visit the Eaton Website.

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