Loadbuster®-The S&C Loadbreak Tool

The original lightweight, easy-to-use portable loadbreak tool

For use with disconnects, cutouts, power fuses, and fuse limiters, S&C’s portable loadbreak tool provides a better way of switching on your distribution system. It brings load-switching capability through 34.5 kV and 600 amperes nominal, 900 amperes maximum to your overhead distribution system. S&C’s Loadbuster®-The S&C Loadbreak Tool cuts installation and operation costs. There’s no need for load interrupters on each device. This rugged, reliable device interrupts with no external arc, meeting OSHA requirements for opening circuits under load.

Key Benefits

Lineman-proven since 1956 . . . the ultimate in portable live switching

  • Available in two system-matched models
    • 14.4/25 kV nominal, 27 kV maximum
    • 25/34.5 kV nominal, 38 kV maximum
  • Interrupts with no external arc. Meets OSHA requirements for opening circuits under load
  • Handles all live-switching duties — transformers, lines, cables& capacitors . . . through 38 kV, 900 A
  • Rugged, reliable. Loadbuster’s robust, low-maintenance design stands up to the most demanding use . . . up to 2000 operations between inspections
  • Operation counter feature tracks tool use, helps determine maintenance needs
  • Cuts installation and operation costs. No need for interrupters on each device . . . simplified switching procedures minimize duration and scope of outages
  • Total factory support. Loadbuster and replacement parts available for immediate delivery.

S&C’s Loadbuster Tools are manufactured in accordance with a quality system certified to ISO9001:2000.

 

Certain application restrictions apply, especially with regard to single-pole switching of ungrounded-primary three-phase transformers or banks of single-phase transformers. See S&C Publication 811-30 for details.

Application

The Loadbuster tool is available in two easy-to-use models: Catalog Number 5300R3, rated 14.4/25 kV nominal, 27 kV maximum; and Catalog Number 5400R3, rated 25/34.5 kV nominal, 38 kV maximum. Both have a 50/60-hertz interrupting rating of 600 amperes nominal, 900 amperes maximum. When used with suitably “hook-equipped” disconnects, cutouts, power fuses, fuse limiters, and dropout reclosers, the Loadbuster tool is suitable for these live-switching duties on single-phase or three-phase circuits of overhead distribution systems through 34.5 kV.

  • Transformer switching—The Loadbuster tool can switch transformer load currents up through 600 amperes nominal, 900 amperes maximum, as well as transformer-magnetizing currents associated with the applicable loads.
  • Line switching—The Loadbuster tool may be used for load splitting (parallel or loop switching) and load dropping of currents up through 600 amperes nominal, 900 amperes maximum. It is also capable of line dropping (charging currents typical for distribution systems of these voltage ratings).
  • Cable switching—The Loadbuster tool is suitable for load splitting (parallel or loop switching) and load dropping of currents up through 600 amperes nominal, 900 amperes maximum. It may also be used for cable dropping (charging currents typical for distribution systems of these voltage ratings).