Knife switch
Product Code : SCL-MBAVTOB-12927
The knife switch apparatus by Educational Instrument helps students understand how a switch controls current flow in a simple circuit. Its exposed lever action makes the ON/OFF function easy to see, making it suitable for demonstrations of open circuits, closed circuits, series circuits and parallel circuits.
This product is intended for supervised educational experiments using compatible low-voltage DC sources.
Key Features
Visible switching action: Shows clearly how a circuit opens and closes.
Supports circuit teaching: Useful for explaining current flow, load control and switch function.
Low-voltage educational use: Intended for school demonstrations; exact voltage and current rating.
Simple connection points: Allows connection with suitable leads, cells and circuit components.
Reusable lab component: Suitable for repeated practical sessions when handled correctly.
Classroom-friendly design: Helps students connect circuit diagrams with real switching hardware.
Safety-focused use: Not intended for mains electricity or industrial switching unless separately rated and certified.
Technical Specifications
|
Specification |
Detail |
|
Product name |
Knife Switch |
|
Brand |
Educational Instrument |
|
Product category |
Physics Lab Equipment / Electricity and Circuit Teaching Component |
|
Intended users |
Schools, physics laboratories, STEM classrooms, electronics labs and teacher training institutes |
|
Capacity / rating |
Low-voltage educational use |
|
Material |
Conductive metal contacts with insulated base |
|
Included components |
Knife switch unit |
What's Included in the Kit
Knife switch apparatus
Insulated base plate
Metal switch blade and contact terminals
Binding posts or screw terminals
Connecting leads, if supplied
Experiment guide or activity sheet, if supplied
Applications / Uses
Demonstrating open and closed circuits in school physics labs
Teaching current control in simple electric circuits
Building series and parallel circuit experiments
Showing manual switching in electricity and electric current lessons
Adding a visible control component to physics lab equipment setups
Using with compatible electronics lab equipment for basic circuit training
How to Use the Knife Switch
Place the knife switch apparatus on a dry, stable and non-conductive laboratory bench.
Check that the switch blade, contacts and terminals are clean and undamaged.
Connect the switch in series with the power source and load as shown in the circuit diagram.
Keep the switch open before connecting the low-voltage power source.
Close the switch to complete the circuit and observe the load response.
Open the switch to break the circuit and stop current flow.
Disconnect the power source before changing wires or components.
Safety note: Use the knife switch apparatus only with the recommended low-voltage educational supply. Do not connect it to mains electricity unless a verified product rating and certified enclosure specifically allow it.
Care & Maintenance
Keep the switch contacts clean, dry and free from oxidation.
Check the blade movement and terminal tightness before each practical session.
Do not overload the switch beyond its confirmed voltage and current rating.
Store the apparatus in a dry cabinet away from moisture, dust and corrosive chemicals.
Why Choose Educational Instrument
Educational Instrument manufactures and exports scientific laboratory instruments, lab experiment setups, science kits, mathematics kits, didactic models and STEM models. The brand supplies teaching equipment for schools, colleges and training institutions that need practical science demonstrations. This knife switch apparatus is suitable for basic electricity and circuit training. Buyers should confirm the exact rating, switch configuration, material and terminal design before bulk procurement.
Frequently Asked Questions
What is a knife switch apparatus used for?
A knife switch apparatus is used to open and close an electric circuit. It helps students see how a switch controls current flow.
Is this knife switch suitable for school physics labs?
Yes, it is suitable for supervised school and college physics laboratory demonstrations using compatible low-voltage supplies.
Can students use this switch for series and parallel circuits?
Yes, it can be used in series and parallel circuit activities when the supplied circuit components are compatible with the switch rating.
What is the voltage and current rating of this knife switch?
The exact voltage and current rating has not been verified for this listing.
Can this knife switch be connected to mains electricity?
No. It should not be connected to mains electricity unless the product has a verified certified rating and suitable protective enclosure.
Can this be included in science kits?
Yes, a knife switch is useful in electricity activities within compatible science kits and STEM science lab DIY kits.
For more classroom circuit products, explore Educational Instrument’s electronics lab equipment range.
