Safety Conformance

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: used where equipment is not directly connected to the mains.
  • Category II: used on single phase mains final sub-circuits.
  • Category III: used on permanently installed loads such as distribution panels, motors, and 3 phase appliance outlets.
  • Category IV: used on locations where fault current levels can be very high, such as supply service entrances, main panels, supply meters and primary over-voltage protection equipment

Safety Conformance


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