Fluke 374 Fluke 374, 375, 376 Users Manual - Page 12

IEC Measurement Category IV - user manual

Get Fluke 374 PDF manuals and user guides View all Fluke 374 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 12 highlights

374, 375, 376 Users Manual Symbol Meaning Symbol Meaning IEC Measurement Category III IEC Measurement Category IV CAT III CAT III equipment has protection against transients in equipment in fixed-equipment installations, such as distribution panels, feeders and short branch circuits, and lighting systems in large buildings. CAT IV CAT IV equipment has protection against transients from the primary supply level, such as an electricity Meter or an overhead or underground utility service. Note The Measurement Category (CAT) and voltage rating of any combination of test probe, test probe accessory, current clamp accessory, and the Meter is the LOWEST rating of any individual component. 8

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
374, 375, 376
Users Manual
8
Symbol
Meaning
Symbol
Meaning
CAT III
IEC Measurement Category III
CAT III equipment has protection
against transients in equipment in
fixed-equipment installations, such
as distribution panels, feeders and
short branch circuits, and lighting
systems in large buildings.
CAT IV
IEC Measurement Category IV
CAT IV equipment has protection
against transients from the primary
supply level, such as an electricity
Meter or an overhead or
underground utility service.
Note
The Measurement Category (CAT) and voltage rating of any combination of test probe,
test probe accessory, current clamp accessory, and the Meter is the LOWEST rating of
any individual component.