Schneider Electric USA Website

Welcome to our website.

To view product availability in a specific country, select from the country list below. For Investor Relations, please visit our global site.

Choose another country or region


    Powergard-18 Pulse Drive

    This is legacy product, please consider the Altivar Process 680 Low Harmonic or 980 Regenerative Drive

    This Product is Obsolete

    Class 8839 Type CPD Series C, 18-pulse, enclosed drive controllers featuring ATV61/71 power converters.

    Schneider Eletric Square D Picture
    Powergard-18 Pulse Drive
    • Features

      Product Cross-Reference

      Combining adjustable speed drive and power quality solutions

      For municipal and industrial pumping applications, the Square D® brand PowerGard™ Series C 18-Pulse enclosed drive controller features the new Telemecanique® brand Altivar® 61 and 71 adjustable frequency drives/power converters. Schneider Electric’s experience and expertise in power distribution and power quality measurement are combined with solid state motor control. The result: A robust, packaged, adjustable speed drive with clean power solution.

      PowerGard™18-Pulse drives are ideal for installations specifying “clean power” low- harmonic content in compliance with IEEE 519 guidelines for harmonic mitigation. PowerGard™ 18-Pulse drives are UL508 listed and feature a heavy-duty industrial disconnect handle with lock-out/tag-out provisions. PowerGard™ 18-Pulse enclosed drive controllers are low voltage products available in the following ratings:

      Constant torque (Heavy duty ratings – 150% current limit)

      • Altivar® 71 power converter
      • 40 to 450 hp, 460 V

      Variable torque (Light duty ratings – 110% current limit)

      • Altivar® 61 power converter
      • 50 to 500 hp, 460 V

      PowerGard™ 18-Pulse enclosed drive controllers are available in Type 1 general purpose or with fan filter options

      What can the PowerGard 18-Pulse controller do for you?

      Custom performance

      • Clean power (low harmonic content) for high-horsepower ratings
      • Customized for specific applications
      • Advanced technology platform increases reliability and uptime
      • Dedicated 18-Pulse transformer/reactor and bridge rectifiers
      • Altivar 61 and 71 power converters for peak performance

      Ease of use

      • Intuitive door-mounted graphic display screen in plain text
      • Programming is clear, precise and illustrated; diagnostics are intuitive
      • Operators mounted on enclosure doors are pre-programmed to save set-up time and expense

      Fully protected

      • Patented 18-Pulse converter technology with premium harmonic mitigation
      • 100,000 AIC coordinated, UL508 listed and NEC article 409 rated
        Meets 2003 IBC and ASCE 7 standards for seismic qualification (optional)

      Expandable network capabilities

      • For building automation, add Lonworks®, BACNet™, MetaSYS® N2, APOGEE® P1 communications cards
      • For industrial applications, add DeviceNet™, Ethernet TCP/IP, FIPIO, Interbus-S, Modbus® Plus, Modbus Uni-Telway, Profibus® DP communication cards