Four Way Plug Key
Product Code : SCL-EAE-11285
Quick answer: The Four Way Plug Key is a manual plug switch with a four-way contact arrangement. Inserting a plug into a chosen position completes that circuit path, so cells, resistances or branches can be selected without rewiring, for example when comparing the emf of cells on a potentiometer. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Parameter | Detail |
|---|---|
| Device type | Manual multi-way laboratory plug switch |
| Configuration | Four way |
| Primary function | Making, breaking or selecting electrical circuit paths |
| Supplied parts | Base assembly with four-way contact arrangement and electrical connection terminals |
The number of selector plugs supplied is not listed; state the quantity needed when asking for a quotation.
How the four way plug key is used
A plug key closes a circuit when a conducting plug bridges two contact blocks and opens it when the plug is removed. The four-way key places a four-way contact arrangement on one base, so the experimenter chooses which path is live simply by moving or adding a plug, instead of pulling leads on and off between readings.
- Place the key on a stable, dry, non-conductive bench with the power source switched off.
- Identify the terminals and contact paths before wiring.
- Connect each cell, resistance or branch to its terminal.
- Insert the plug for the path required, take the reading, then move the plug to the next path.
A common use is comparing the emfs of two cells with a potentiometer: each cell is brought into the circuit through the key, the balancing length is found first with one cell and then with the other, and E1/E2 = l1/l2. The key is equally handy for switching known and unknown resistances during comparison experiments.
Key features
- Four-way contact arrangement on a single base
- Manual plug operation gives a visible make or break
- Selects between cells, resistances or branches without rewiring
- Suited to potentiometer and resistance-comparison experiments
- Electrical connection terminals for low-voltage laboratory circuits
- Clearly shows open, closed and selected current paths
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the four way plug key at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Electrical and Electronics products
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- Reversing Key / Commutator (SCL-EAE-11286)
- Tapping Key (SCL-EAE-11283)
- One Way Plug Key (SCL-EAE-11287)
- Rheostat 8 Inches (SCL-EAE-11282)
- Two Way Plug Key (SCL-EAE-11288)
The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
What is a four way plug key used for?
It is used to make, break or select between several circuit paths, for example switching between two cells when comparing emfs on a potentiometer, or between known and unknown resistances.
How many plugs come with the four way key?
The plug quantity is not listed on this page. State the number of plugs required when asking for a quotation.
What is the price of the four way plug key?
Prices are not published on the website. Add the four way plug key to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11285 and the quantity, to receive a quotation.
Does Lab Exports manufacture the four way plug key?
Yes. Lab Exports manufactures the four way plug key at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11285.
Request a quote
Email [email protected] with the house code SCL-EAE-11285 and the quantity, or add the four way plug key to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
