Plug Keys Switches Manufacturer,Supplier and Exporter in India
Product Code : EL-PLE-10958
Quick Answer: Plug Keys Switches covers brass plug keys in 1 way, 2 way and 3 way sizes, plug key commutators, reversing switches, a Pohl's commutator, charge discharge, tapping, mercury and Carey Foster keys, Morse sounders and D.P.D.T. switches for electricity experiments in school physics labs.
Last updated: October 2026
Key Features
- Brass plug keys with brass terminals on vulcanite or bakelite bases, in 1 way, 2 way and 3 way sizes
- Plug key commutators, four way round and six way circular
- Reversing switches on a bakelite base with handle
- Pohl's commutator with 4 mercury pits and a maximum current of 5.0 A
- Charge discharge key with silver contacts, used for charging and discharging a capacitor
- Tapping, mercury, Rayleigh and Carey Foster keys and D.P.D.T. switches also listed
Technical Specifications
| Specification | Value |
|---|---|
| Plug key, vulcanite base | Brass blocks with brass plugs and lugs, brass terminals on the blocks |
| Plug key, 9 mm block | Brass block 9 mm square, all brass terminals and screws; 1 way, 2 way, 3 way |
| Plug key, 10.5 mm block | Thick brass block of 10.5 mm on heavy bakelite base; 1 way, 2 way, 3 way; heavy pattern also listed |
| Plug key commutator | Four way round and six way circular; heavy pattern listed for the four way round |
| Pohl's commutator | Contact arms on vulcanite base, 4 mercury pits, bakelite handle, maximum current 5.0 A |
| Charge discharge key | Heavy bakelite base, quick action, silver contacts |
| Tapping key | Single contact and double contact versions on bakelite base |
About This Product
Plug keys and switches are used to open, close and reverse the current in a circuit during electricity experiments. A plug key makes contact when a brass plug is pushed between two brass blocks, while commutators and reversing switches change the direction of the current. Tapping keys give short contacts, and a charge discharge key lets a capacitor be charged and then discharged. These items suit practicals on Ohm's law, the meter bridge, the potentiometer and capacitors.
Frequently Asked Questions
Q1. Which plug key sizes are listed?
Plug keys are listed in 1 way, 2 way and 3 way sizes.
Q2. What is the maximum current of the Pohl's commutator?
It is listed with a maximum current of 5.0 A and 4 mercury pits.
Q3. What is the charge discharge key used for?
It is used for charging and discharging a capacitor, and has quick action and silver contacts on a heavy bakelite base.
Related: Physics Lab Equipment, Multi-Range Meter, Demonstration Meter, Ohm Meter.
For a quotation on the Plug Keys and Switches, contact School Lab Equipment India.