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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.

Released for: Schneider Electric Canada
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