About this Manual
2
Number
Symbol
Description
1
Direct current
2
Alternating current
3
Both direct and alternating current
4
Three-phase alternating current
5
Three-phase alternating current with neutral
conductor
6
Earth terminal
7
Protective conductor terminal
8
Frame or chassis terminal
9
Refer to the operating instructions
10
On (supply)
11
Off (supply)
12
Equipment protected throughout by double
insulation or reinforced insulation
13
Caution: Risk of Electric Shock
14
Caution: Hot Surface