Electrical Wiring Disc Calculator from Japan
A disc for electricians calculating wire gauge, voltage drop, conduit fill, and circuit loads. It is a manual mathematical instrument, fitting the definition of a disc calculator under drawing, marking-out or mathematical calculating instruments.
Duty Rate — Japan → Canada
0%
Import Tips
• Verify the disc is not a measuring instrument; it performs calculations only
• Declare the material (e.g
• heavy plastic) for duty assessment
• Provide a product manual to CBSA to confirm its mathematical function