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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
Empowered by a technologically-advanced manufacturing facility, we manufacture and export a premium quality range of Earth Switches in Mumbai , Mahara..
Owing to perfection and quality oriented approach, we have carved niche in the industry as manufacturer, supplier and exporter of an enormous grade ar..
  • 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 : +918037266870
  • Fax : 91-250-2453878
  • Send Inquiry Send SMS
  • Mr. Rajan Nambiar (Chief-Executive)
  • Mobile : 918037266870
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