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Knife Switch Single Pole Double Throw On Base

Knife Switch Single Pole Double Throw On Base

Product Code : JA-EE-7438

The Knife Switch Single Pole Double Throw On Base (SKU JA-EE-7438) is a changeover knife switch mounted on a plastic base, used to connect one circuit line to either of two outputs in electricity practicals. This single pole double throw knife switch has brass poles and blade for good electrical connections, and its open construction lets students see which path is selected. JaincoLab supplies it to school and college laboratories.

Specifications

The Knife Switch Single Pole Double Throw On Base has one brass blade that closes onto either of two brass contacts, mounted on a plastic base, so a single line is switched between two circuits with a good electrical connection in each position.

ProductKnife Switch Single Pole Double Throw On Base
SKUJA-EE-7438
TypeKnife switch, single pole double throw
BasePlastic
Poles and bladeBrass
UseSelecting one of two circuit paths

Applications of the single pole double throw knife switch

A single pole double throw switch routes current into one of two paths, so it is used in practicals that compare two resistances or components with the same meter, switch a galvanometer between circuits, or charge a capacitor and then discharge it through another path.

  • Comparing two resistances or components against one meter
  • Charging a capacitor in one position and discharging it in the other
  • Switching a galvanometer or meter between two circuits
  • Two-way lighting demonstrations
  • Selector switching in potentiometer and bridge set-ups

Scope of supply and ordering

The listing covers one single pole double throw knife switch on a plastic base with brass poles and blade. Leads and other apparatus are separate items. Accessories, spares and quantities are confirmed on the quotation.

MOQ, lead time and packing are confirmed on each quotation for the quantity and destination. JaincoLab supplies switches singly, in class quantities for schools and colleges, and in bulk for education programmes, with export orders to Africa, the Middle East and South and South-East Asia.

Frequently asked questions

What does single pole double throw mean?
One line is switched to either of two outputs, so the switch selects between two circuit paths.

What are the contacts made of?
The poles and blade are brass, mounted on a plastic base.

Can it be used to charge and discharge a capacitor?
Yes. One position connects the capacitor to the supply and the other connects it to the discharge path.

Related products

Other knife switches and keys are listed in electricity equipment from JaincoLab, a physics lab equipment manufacturer in India.

Request a quote

To order the Knife Switch Single Pole Double Throw On Base, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.

Last updated: September 2026

   
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Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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