Single pole Single Throw Knife type switch
Product Code : JL-LEP-10430
The Single pole Single Throw Knife type switch (SKU JL-LEP-10430) is an open SPST knife switch used to open and close an electrical circuit in school practicals. The nickel-plated brass knife and contact plates are clearly visible, so students can see exactly when this knife switch makes and breaks the circuit, and the plastic handle keeps fingers away from the contacts. It is mounted on a black plastic base, and JaincoLab manufactures it in India.
Specifications
The knife switch has a nickel-plated brass knife of at least 0.8 × 8 × 55 mm with a 9 × 9 × 23 mm plastic handle, nickel-plated brass contact plates of at least 8 × 20 × 0.5 mm, and a black plastic base of at least 12 × 60 × 95 mm and 2 mm thickness.
| Product | Single pole Single Throw Knife type switch |
| SKU | JL-LEP-10430 |
| Purpose | Opens and closes an electrical circuit |
| Switch type | Single pole single throw (SPST) knife switch |
| Knife | Nickel-plated brass, at least 0.8 × 8 × 55 mm |
| Handle | Plastic, at least 9 × 9 × 23 mm |
| Contact plates | Nickel-plated brass, at least 8 × 20 mm and 0.5 mm thick |
| Base | Black plastic, at least 12 × 60 × 95 mm and 2 mm thick |
| Specification reference | As per DepEd guidelines |
Applications of the knife switch
The switch is placed in series in a circuit so that students can switch lamps, motors and meters on and off, and because its action is visible it helps explain what open and closed circuits mean.
- Opening and closing simple circuits with bulbs and cells
- Switching the supply to meters only while readings are taken
- Controlling electromagnets and motors in electromagnetism activities
- Showing open and closed circuits in primary and lower secondary science
- Circuit practicals in secondary physics and TVET electrical courses
Scope of supply and ordering
The listing covers one SPST knife switch on its plastic base as described in the specification table. Leads and quantities are confirmed on the quotation.
MOQ, lead time and packing are confirmed on the quotation for the number of switches and the delivery destination. JaincoLab supplies class sets, laboratories and export buyers in Africa, the Middle East and South and South-East Asia.
Frequently asked questions
What type of switch is it?
A single pole single throw (SPST) knife switch.
What are the knife and contacts made of?
Nickel-plated brass; the contact plates are at least 0.5 mm thick.
What is the base size?
At least 12 × 60 × 95 mm, in black plastic at least 2 mm thick.
Does it have an insulated handle?
Yes. The knife has a plastic handle of at least 9 × 9 × 23 mm.
Related products
Circuit boards often ordered with the knife switch:
More electricity apparatus is listed in the Laboratory Equipment Products range of JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the SPST Knife Switch, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
