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Offering a range of Relay Test Block, Semaphore Indicators, Relay Test System, Switch Fuse Units, etc.

About Us

Nelster Welcon is India's pioneer and the largest manufacturer & suplier of Test Switches, Test Switch, Terminal Blocks, Test Terminal Block, Test Blocks with the widest range to offer. Established in 1978 , we are an ISO-9001 : 2008 certified manufacturing plant offering a range of Test Terminal Blocks, Relay Test Blocks,  Relay Test Plugs,  Semaphore Indicators, Relay Test Systems & Plugs, Changeover Switches, FT test switches, RT test switches, Changeover switches, Switch Dis connector, Test Switches,Test Switch, Terminal Blocks, Test Terminal Block, Air Break Switches, Gang Operated Switches etc. It is our philosophy & commitment to produce and deliver products of highest quality & safety standards at reasonable prices with an enviable service that has helped us in forging sustainable business association with our clients world over.

Extensive Product Range :

  • Test Terminal Block
  • Relay Test Plugs
  • Relay Test Block
  • Semaphore Indicators
  • Relay Test System
  • Switch Fuse Units
  • Changeover Switches
  • Disconnecting Switches
  • FT test switches
  • RT test switches
  • Connectors
  • Universal Test Blocks
  • Test Winding Terminals.

Latest Trade Offers
We are major manufacturer, supplier and exporter an extensive range of Test Terminal Blocks in Mumbai, Maharashtra, India available with following det..
We are esteemed manufacturer, supplier and exporter of Isolator Switch in Mumbai, Maharashtra, India. Provided indicators are mainly used in circuit b..
  • Contact Details
  • 7, Pragati Building, K.T. Industrial Complex, Opp Varun Industries, Near Range office, Valiv, Vasai East, Dist- Palghar, Vasai - 401210, Maharashtra, India
  • Phone : 91-250-2453877
  • Fax : 91-250-2453878
  • Send Inquiry Send SMS
  • Mr. Rajan Nambiar (Chief-Executive)
  • Mobile : +918422991145, +919022221418
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