---
product_id: 547041550
title: "RuiLing 3-Pack SPST Knife Switch Physics Laboratory Equipment Single Pole Single Throw Switch for Educational Purposes"
brand: "ruiling"
price: "FREE"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.nl/products/547041550-ruiling-3-pack-spst-knife-switch-physics-laboratory-equipment-single
store_origin: NL
region: Netherlands
---

# 2.93" x 1.36" x 1.0" 3 SPST switches Secure screw binding RuiLing 3-Pack SPST Knife Switch Physics Laboratory Equipment Single Pole Single Throw Switch for Educational Purposes

**Brand:** ruiling
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🔍 Switch On Your Curiosity!

## Quick Answers

- **What is this?** RuiLing 3-Pack SPST Knife Switch Physics Laboratory Equipment Single Pole Single Throw Switch for Educational Purposes by ruiling
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/547041550-ruiling-3-pack-spst-knife-switch-physics-laboratory-equipment-single)

## Best For

- ruiling enthusiasts

## Why This Product

- Trusted ruiling brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🌟 Visual Learning!:** Engaging design enhances student interaction.
- • **🔗 Secure Connections!:** Screw type binding posts for ultimate safety.
- • **📚 Educational Excellence!:** Ideal for classrooms and labs alike.
- • **🛠️ Built for Stability!:** Knife style switch ensures reliable operation.
- • **🔧 Unleash Your Inner Scientist!:** Perfect for hands-on physics experiments.

## Overview

The RuiLing 3-Pack SPST Knife Switch is an essential tool for educational settings, featuring three durable switches designed for physics experiments. Each switch measures 2.93" wide, 1.36" deep, and 1.0" tall, with a secure screw binding post for reliable electrical connections. Perfect for enhancing hands-on learning in classrooms and laboratories.

## Description

Description: Consist of baseboard, binding post, knife switch, knife feet, knife rest and insulated handle. Single pole single throw (SPST) switch for making and breaking a single electrical connection circuit. Special equipment for students classroom and Physics laboratory experiments. Safe and visual, knife style switch for stable operation, screw type binding post for secure electrical connection.  FAQ: 1.What are the dimensions of this item? I.e. - what is the smallest box one of these would fit in when closed (in on position)? The switch is 2.93" wide by 1.36" deep by 1.0" tall. The handle extends over the base to bring the total width to 3.2".  2.If you look on the bottom, can you see the metal connecting the binding posts to the poles on the switches? I plan to teach about circuits. Yes, you can see the connections on the bottom. I gave these switches along with other items to some young students to introduce them to circuits. Excellent item for that.  3.what kind of wires would be best for this? would alligator lead clamp onto these or would stripped wire wrap around? Stripped wire (solid #20 #22 gauge) would work well. You could use alligator clips if you completely unscrewed the terminal posts and took them off. Either way these work really well.  What is in the package: 3pcs SPST Switches

## Features

- What is in the package: 3pcs SPST Switches
- The switch is 2.93" wide by 1.36" deep by 1.0" tall. The handle extends over the base to bring the total width to 3.2".
- Consist of baseboard, binding post, knife switch, knife feet, knife rest and insulated handle.
- Safe and visual, knife style switch for stable operation, screw type binding post for secure electrical connection.
- Special equipment for students classroom and Physics laboratory experiments.

## Images

![RuiLing 3-Pack SPST Knife Switch Physics Laboratory Equipment Single Pole Single Throw Switch for Educational Purposes - Image 1](https://m.media-amazon.com/images/I/61XFhPT9MfL.jpg)
![RuiLing 3-Pack SPST Knife Switch Physics Laboratory Equipment Single Pole Single Throw Switch for Educational Purposes - Image 2](https://m.media-amazon.com/images/I/61t0exDgSNL.jpg)
![RuiLing 3-Pack SPST Knife Switch Physics Laboratory Equipment Single Pole Single Throw Switch for Educational Purposes - Image 3](https://m.media-amazon.com/images/I/61q33Iah0VL.jpg)
![RuiLing 3-Pack SPST Knife Switch Physics Laboratory Equipment Single Pole Single Throw Switch for Educational Purposes - Image 4](https://m.media-amazon.com/images/I/61reQuo26GL.jpg)

## Customer Reviews

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    You get what you pay for.
  

*by P***L on Reviewed in the United States on February 4, 2021*

I was hoping that these were of better quality. I have to say that they do work, but only after I squeezed (slightly) the female part of the switch with a pair of needle nose pliers so when I closed these knife switches they made a good connection. If you are going to do as I did with the needle nose, squeeze at the lower part of the female jaws so as to not deform the grasping part. I'm using these with a 18 volt model train set up. Do NOT use these for anything like 110 vac.. house voltage and current.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    It works well. I made six of these for my grandchildren. They loved them
  

*by M***R on Reviewed in the United States on January 22, 2021*

For the cost, these items are well made, aesthetically good to look at and the kids enjoyed them to this day. (ages 7 to 14). It's perfect for the creation of a working MORSE transmitter

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Cheap and reliable
  

*by S***E on Reviewed in the United States on July 30, 2020*

Just what was needed. Simple projects.

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-06*