Skip to main content
Free shipping over $99
Free Periodic Table Banner Pen over $49Free gift over $49
Free Periodic Table of Elements Mousepad over $149Free gift over $149

Knife Switch - Double Pole Double Throw

Item #13854 4.5 star rating 2 customer reviews
$3.49 /each
$5.99 41% OFF limited time deal
IN STOCK Ships in 1-2 business days
Add to cart to see shipping cost.

Only 2 left in stock - order soon.
  • Free shipping on orders over $99
  • Free gift with every $49+ order
  • 100% satisfaction guarantee
  • Secure checkout

Knife switches are most closely associated with horror films set in the 1800s, especially in underground laboratories such as the one depicted in Mary Shelley’s novel Frankenstein. This double knife-double throw switch allows for up to two circuits to be live or to be turned off. Simply connect the ends of the circuit to the two metal screw contacts on the switch and instantly you have mechanical way of breaking and connecting a circuit.

Features:

  • Easy to operate lever
  • Two pre-drilled holes for mounting
  • Great teaching tool for teaching the basics of electricity


Age13+
Approx. Ship Size4.00 x 2.00 x 1.00 in
10.16 x 5.08 x 2.54 cm
Weight0 lb 3 oz
0.06 kg


Prop 65 Warning SignWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Customer Reviews


5 star rating  Excellent Knife Switch
John Simanton from USA, Washington, Spokane
Sturdy (this counts for a lot) and easy to hook up.
4 star rating  Not quite as expected.
Wolf Gray from US, VA, Hampton
Device was flimsier than expected, while I wasn't expecting "Throw the switch, Igor!" levels of durability, I worry the device won't engage properly. Action is smooth and knives engage, but the metal quality seems flimsy and you don't want to move the switch quickly.

You may also like

From the science blog