Measurement Categories - Chauvin Arnoux F203 Guide De Démarrage

MEASUREMENT CATEGORIES

Definitions of the measurement categories :
CAT II : Circuits directly connected to the low-voltage installation.
Example: power supply to household electrical appliances and portable tools.
CAT III : Power supply circuits in the installation of the building.
Example: distribution panel, circuit-breakers, fixed industrial machines or devices.
CAT IV : Circuits supplying the low-voltage installation of the building.
Example: power lines, meters, and protection devices.
7
1. PRESENTATION
1
2
3
4
5
6
10
Item Designation
Jaws with centring marks
1
(see connection principles)
2 Physical guard
3 Switch
4 Function keys
5 Display unit
6 Terminals
7 Trigger