NDB VCI-3-3.125 Transmitter Clamps Large Version

When it comes to safety, magnetic injection is the preferred method as groundings stays installed at all time. Ease your cable identification routine with ndb’s VCI clamp set.



The VCi-3™ system is designed for cable and phase identification, mainly for instal­lation or maintenance purposes on three-phase electrical networks during power shutdowns.

The transmitter module injects a low current on the cable conductors by direct con­tact or magnetic clamps methods. A voice message is recorded by the user and will be transmitted along with digital signals. Groundings stay connected at both ends of the three-phase circuit during the test. The detector module is used at the other end of the cable system.


  • Unique balanced injection system that eliminates signal bleeding on other wires
  • Three different frequencies to identify each phase
  • Easy to install and operate
  • Extended range: up to 10 km (6 miles) of working distance
  • Tone transmission for more than 8 hours
  • Lightweight and compact
  • Optional magnetic sensing transducer
  • Phase detection by transmitter tone presence or absence
  • Digital filtering of network harmonics
  • Unique dual grounded method

Additional information