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Plug Key Manufacturer,Supplier and Exporter

Plug Key

Product Code : SEL-PLE-10227

Quick Answer: Inserting or removing the tapered plug makes or breaks a circuit with this Plug Key, built from two 9 mm thick brass blocks with brass terminals on a bakelite base.

Last updated: October 2026

Key Features

  • Two brass blocks, 9 mm thick
  • Brass terminals
  • Bakelite base
  • Accurately tapered plug with a moulded bakelite head

Technical Specifications

SpecificationValue
ContactsTwo brass blocks, 9 mm thick
TerminalsBrass
BaseBakelite
PlugTapered, moulded bakelite head

About This Product

A plug key works as a simple switch in electrical circuits for practical work in school and college labs. Its accurately tapered plug, with a moulded bakelite top, fits into the gap between two 9 mm thick brass blocks to close the circuit and is pulled out to open it, and the brass terminals on the bakelite base take the circuit leads.

Frequently Asked Questions

How does the plug key work?

A tapered plug with a bakelite head fits into the gap between two brass blocks; pushing it in closes the circuit and pulling it out opens it.

Related: Physics Lab Equipment, Resistance Coils with Sockets, Banana Plug, Resistance Box Plug Type (Constantan / Manganin Coil).

For a quotation on the Plug Key, contact School Educational Instrument.

   
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