How can we help you today?

What are the 3 stop categories according to NFPA 79?

Issue:
What are the different NFPA 79 stop categories?

Product Line:
Operating Mechanisms and Disconnect Switches

Environment:
Disconnect Switches

Resolution:
Category 0 is an uncontrolled stop by immediately removing power to the machine actuators.
Category 1 is a controlled stop with power to the machine actuators available to achieve the stop then remove the power when the stop is achieved.
Category 2 is a controlled stop with power left available to the machine actuators.

Schneider Electric Canada

Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more

Need help?

Need help?

Product Selector

Product Selector

Quickly and easily find the right products and accessories for your applications.

Get a Quote

Get a Quote

Start your sales inquiry online and en expert will connect with you.

Where to buy?

Where to buy?

Easily find the nearest Schneider Electric distributor in your location.

Help Center

Help Center

Find support resources for all your needs, in one place.

  • Help and Contact Center
  • Contact Sales
  • Find our Offices
  • Where to Buy
  • Careers
  • Company Profile
  • Investors
  • Newsroom
  • Report a Misconduct
  • Product Documentation
  • Product Selectors
  • Software and Firmware
  • Product Substitution and Replacement
  • Blog
  • Events
  • Schneider Electric Community
  • Sustainability
  • Legal Information
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings