Circuit Switch
Product Code : SCL-CL-11869
Circuit Switch (SKU SCL-CL-11869) is a mechanical knife switch that opens or closes an electrical circuit by hand: current flows when the metal lever is down and stops when it is lifted. Red and black binding posts take the connecting wires. Teachers use it in Class 6–12 electricity practicals and basic ITI wiring exercises. Schools, colleges, training institutes, distributors and tender contractors can obtain it from Science Lab Supplies, which supplies it from Ambala, India.
Specifications
The switch is purely mechanical, with a metal knife lever that students can see making and breaking contact. Colour-coded red and black binding posts grip the wires firmly, which makes it easy to wire the switch into series and parallel circuits and to trace connections when checking a student's work.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11869 |
| Model no. | SCI/LSS-1451 |
| Type | Mechanical, manual knife switch |
| Lever | Metal knife lever |
| Terminals | Red and black binding posts |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Circuit Switch
Because the contact is visible, the knife switch shows students exactly what "open" and "closed" mean in a circuit. It appears in the electricity chapters of NCERT Class 6–10 science, in Class 12 physics practicals where the supply must be cut between readings, and in basic ITI wiring work.
- Class 6: open and closed circuits with a cell and bulb.
- Class 10: switching series and parallel bulb circuits.
- Class 12 physics: breaking the circuit between Ohm's law readings so resistors do not heat.
- ITI electrician trade: introducing manual switching of a load.
Standard Scope of Supply
The Circuit Switch is supplied as a single unit as described above, with its metal knife lever and red and black binding posts. Connecting leads, bulbs and power sources are ordered separately, and any optional accessories you request appear on the quotation.
Packing, MOQ and Lead Time
Whether you need one switch or one for every student group, Science Lab Supplies quotes that exact number and states the packing, delivery time and price. As a laboratory equipment supplier in India, it can put leads, bulbs and other bench items on the same quotation.
Science Lab Supplies holds an Importer-Exporter Code and can ship to buyers in Bangladesh, Zambia, Rwanda, South Africa, Qatar and Sri Lanka. For a price, add the switch to the enquiry cart; for questions, use the contact page; tender details are on the lab tender page.
Frequently Asked Questions
How does the Circuit Switch work?
Pressing the metal knife lever into its contact closes the circuit and lets current flow; lifting it opens the circuit and stops the current. Students can see the gap, which makes the idea easy to grasp.
How are wires connected to the switch?
Through the red and black binding posts. Loosen the post, insert the lead or bare wire, and tighten it again for a firm contact.
Who supplies the Circuit Switch?
It is supplied by Science Lab Supplies from Ambala, India. The company quotes schools, colleges, training institutes, distributors and tender contractors, for single pieces or class quantities.
Is it suitable for series and parallel circuit experiments?
Yes. The switch is intended for building and demonstrating basic series and parallel circuits as part of classroom electricity work.
Related School Circuit Items
A switch controls a circuit only once it has a source, a load and leads. The four items below are the usual companions of this switch on a school electricity bench, and all of them can be listed on the same enquiry to equip every student group at once.
- Light Bulb — the load that shows the switch working.
- Power Supply Unit/ Block for DC — low-voltage source for the circuit.
- Cables with Clips — clip leads to the binding posts.
- Cables with Plug — plug leads for socketed equipment.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
