Neutral Isolator Panels ( NIS)

Neutral Isolator Panels ( NIS)

Owing to our years of industry experience, we have carved out an outstanding position as the foremost manufacturer and supplier of a wide range of Neutral Isolator Panels (NIS). These panels are perfect for power and to prevent the electric motor from the hazards of overloads. We manufacture this panel using supreme grade raw material and ultra-modern techniques in sync with the international standards of quality and design. Owing to their perfect finish and robust construction, these Neutral Isolator Panels (NIS) are widely demanded in the electrical industry.


  • Durable finish standards
  • Shock resistant properties
  • Easy installation
  • Trouble free performance

Neutral Isolator Panels

HT indoor isolators of following rating

  • 3.3 KV / 6.6 KV/ 12 KV / 22 KV / 33 KV.      
  • 400 Amp./630 Amp./1200 Amp./1800 Amp./3200 Amp.  


  • Type tested at M/S. ERDA, VADODARA
  • Single pole / Three pole
  • On load / Off load
  • Motorised / Manual mode of operation
  • Availability of link drive / Aux. switch for switchboard operation / electrical indications and interlock purpose respectively
  • Can be mounted on walls, structures or in switchboards / panels
  • High operating reliability
  • Simple maintenance and inspection
  • Used mechanically strong fiberglass link instead of epoxy link to avoid regular problem of breakage of epoxy link at site.
  • Custom built isolator panels with various interlocks are also manufactured suitable for indoor / outdoor Applications


National Resistors offers 33 KV isolators with voltage ratings upto 33 Kv and these resistors are widely used isolating high-voltage equipment. The isolator ensures the safe functioning of the equipment. The isolators are popular amongst industrial buyers for their uninterrupted performance and ability to withstand high electrical disturbances. The isolators can be custom made to meet the requirement of Horizontal / vertical type, single break , double break, tilting type, rotating type, single/double break consisting of hot dip galvanized iron base, etc.

HT indoor isolators of following rating :

    A) 3.3 KV / 6.6 KV/ 12 KV / 22 KV / 33 KV. 
    B) 400 Amp./630 Amp./1200 Amp./1800 Amp./3200 Amp.