Code Quiz: Torque Requirements

Aug. 8, 2013
NEC rules on torque requirements for control circuit devices with screw-type pressure terminals used with 14 AWG or smaller copper conductors

What are the torque requirements for control circuit devices with screw-type pressure terminals used with 14 AWG or smaller copper conductors?

A. Come on! No one torques control circuit terminals.

B. Torque to a maximum of 12 lb-in.

C. Torque to a maximum of 7 lb-in.

D. Torque to a minimum of 7 lb-in., unless identified for a different torque value

Answer: D

Article 430 covers motors, motor circuits and controllers. Section 430.9 lists the requirements for terminals. More specifically, 430.9(C) states "Control circuit devices with screw-type pressure terminals used with 14 AWG or smaller copper conductors shall be torque to a minimum of 7 lb-in. unless identified for a different torque value."

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].

About the Author

Steven Owen

Voice your opinion!

To join the conversation, and become an exclusive member of EC&M, create an account today!

Sponsored Recommendations

Electrical Conduit Comparison Chart

CHAMPION FIBERGLASS electrical conduit is a lightweight, durable option that provides lasting savings when compared to other materials. Compare electrical conduit types including...

Fiberglass Electrical Conduit Chemical Resistance Chart

This information is provided solely as a guide since it is impossible to anticipate all individual site conditions. For specific applications which are not covered in this guide...

Considerations for Direct Burial Conduit

Installation type plays a key role in the type of conduit selected for electrical systems in industrial construction projects. Above ground, below ground, direct buried, encased...

How to Calculate Labor Costs

Most important to accurately estimating labor costs is knowing the approximate hours required for project completion. Learn how to calculate electrical labor cost.