Symbols & Descriptions
SYMBOL
DESCRIPTION
Arc Flash and Shock Hazard
Shock Hazard
Warning or Caution
Choking Hazard
AC (Alternating Current)
DC (Direct Current)
Low Battery Indicator
Earth Ground
600 A
Maximum Current Specification
CAT III
IEC Measurement Category III
CAT III has protection against transients in equipment in fixed-
equipment installations such as distribution panels feeders,
and short branch circuits. Also included are lighting systems in
larger buildings.
CAT IV
IEC Measurement Category IV
CAT IV has protection against transients from the primary
supply level such as a Meter or overhead or underground utility
service.
NCV
Non-Contact Voltage Sensing
NCV
Non-Contact Voltage Sensing Point
A
Amperage AC and/or DC (model dependent)
Hz
Frequency measured via the clamp head
V
Voltage AC or DC
Hz%
Frequency displayed as % measured with AC Voltage
6
