Plug Keys and Switches
Product Code : JA-PLE-4256
The Plug Keys and Switches listing (SKU JA-PLE-4256) is a range of circuit keys and switches for physics practicals: brass plug keys in one, two and three-way sizes, plug key commutators, reversing switches, a Pohl commutator for hysteresis work, charge-discharge and Rayleigh keys, tapping keys and a mercury key. Plug keys have brass blocks with interlapped plugs and lugs for positive locking. This plug keys and switches range is used in school, college and university electricity laboratories.
Specifications
The range covers plug keys with 9 mm and 10.5 mm brass blocks on Vulcanite or Bakelite bases, commutators, reversing switches and special-purpose keys, all with brass terminals; key details are listed below.
| Product | Plug Keys and Switches |
| SKU | JA-PLE-4256 |
| Plug keys | Brass blocks on thick Vulcanite base; plugs and lugs interlapped for locking; machine-moulded plug heads; brass terminals |
| Plug keys, 9 mm block | 9 mm square brass block, all-brass terminals and screws; 1, 2 or 3 way |
| Plug keys, 10.5 mm block | 10.5 mm thick brass block on heavy Bakelite base, all-brass terminals; 1, 2 or 3 way; also heavy pattern |
| Plug key commutators | Four-way round (standard and heavy pattern) and six-way circular; terminals on each segment |
| Reversing switches | On Bakelite base with handle; M.I.P. type |
| Pohl commutator | Brass/copper contact arms, base with 4 mercury pits, Bakelite handle, side terminals, maximum current 5.0 A; used in hysteresis experiments |
| Charge-discharge key | Heavy Bakelite base, quick action, silver contacts; for charging and discharging a capacitor |
| Rayleigh key | For self-induction experiments, on Bakelite base |
| Tapping keys | Single contact with insulated knob on high-insulation Bakelite base; double contact on Bakelite base |
| Mercury key | On Vulcanite base |
Applications of plug keys and switches
Every electricity practical needs a reliable way to open, close and reverse circuits; the range provides simple plug keys for everyday circuits and special keys for reversing current, charging capacitors, tapping galvanometer circuits and hysteresis measurements.
- Opening and closing circuits in Ohm's law, meter bridge and potentiometer practicals
- Reversing current direction with commutators and reversing switches
- Charging and discharging capacitors with the charge-discharge key
- Self-induction experiments with the Rayleigh key
- Hysteresis measurements with the Pohl commutator
- Momentary contact with tapping keys in galvanometer and bridge circuits
Scope of supply and ordering
The listing covers the keys and switches named above. The types, number of ways and quantities are confirmed on the quotation, together with accessories and spares.
Minimum order quantity, lead time and packing are confirmed on each quotation according to the items, quantities and delivery destination. JaincoLab supplies school and college laboratories, bulk education-project orders and export consignments to buyers in Africa, the Middle East and South and South-East Asia.
Frequently asked questions
Which plug key sizes are available?
One-way, two-way and three-way plug keys, with 9 mm or 10.5 mm brass blocks, plus heavy-pattern versions.
What is the Pohl commutator used for?
It is used in experiments on hysteresis; it has four mercury pits, a Bakelite handle and a maximum current of 5.0 A.
Is there a key for capacitor experiments?
Yes. The charge-discharge key has quick action and silver contacts for charging and discharging a capacitor.
Related products
More electrical accessories are listed in Physics Lab Equipments from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order Plug Keys and Switches, send the types, quantities and delivery destination through the JaincoLab contact page or email [email protected]. For tender or project supply, see our tenders page.
