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515 Blocking and Test Module
515 Blocking and Test Module

The 515 Blocking and Test Module provides an effective means of trip blocking, relay isolation and testing of Multilin relays. By opening the switches and inserting test plugs, phase and residual currents from the primary CTs can be monitored. Currents can be injected into the relay from a secondary injection test set during commissioning.

Features and Benefits
  • 14 Pole switchbank
  • CT inputs short when current switches are open
  • Current injection for each phase
  • Ability to visually isolate (open) trip relay output circuits
  • Cover provided
  • Suitable for utility and industrial use
  • 515 test plugs available