GSC International 4-91202-12 Knife Switch – Single Pole Double Throw (SPDT) – Screw-Type Binding Posts – Insulated Handle and Base – Pack of 12 for Circuit Learning

Knife switches are classic, hands-on tools used in educational settings to demonstrate basic electrical principles. This single pole, double throw (SPDT) knife switch is designed with an insulated base and handle for safety and is equipped with screw-type binding posts for secure wire connection. These switches are ideal for physics and electronics classrooms or science fair demonstrations.
Sold in a pack of 12 switches, they are perfect for labs or bulk instructional use.

Safe Educational Use: Insulated base and handle allow for secure student handling during electricity demonstrations

SPDT Design: Single pole, double throw configuration helps explore open, closed, and redirected current paths

Screw-Type Binding Posts: Easily attach wires for simple circuit construction and real-time experimentation

Durable Construction: Built for classroom labs, electronics education, and physics science projects

Bulk Pack of 12: Ideal for classroom kits, teaching multiple students, or group learning environments

⚠️ Proposition 65 Warning for California Residents:

WARNING: This product may expose you to chemicals including styrene and/or bisphenol A (BPA), which are known to the State of California to cause cancer, birth defects, or other reproductive harm.

For more information, visit www.P65Warnings.ca.gov.

This item is not a toy. It is intended for use in educational, scientific, or professional settings only. Adult supervision is required at all times. Improper use may result in injury or damage. Always follow safety guidelines and wear appropriate protective equipment when handling.