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DOIII isolation links

DOIII isolation links provide extra protection during refusing and switching operations when used in series with a DOIII type fuse.

Isolation links are not fuses and do not have an interrupting rating. During a transformer failure, the isolation link will melt so that the opened primary circuit of a faulted transformer cannot be re-energized by the line crew. Our isolation links are fully interchangeable with links of other manufacturers.

Why Hitachi Energy?

  • Robust, proven product
  • Lead-time four weeks or less

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