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Design Engineer Valued Creative Encyclopedia

About D.E.V.I.C.E.

Digital meters are rated into categories based on their intended application, as set forth by IEC 61010 -1 and echoed by country and regional standards groups such as the CEN EN61010 standard.

Category I is used where equipment is not directly connected to the mains.

Category II is used on single phase mains final sub-circuits

Category III is used on permanently installed loads such as distribution panels, motors, and 3 phase appliance outlets.


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