Table 3a

Single phase, 3- or 2-wire a.c. or d.c. system

Nominal voltage of the energy supplier *)

Rated voltage in V

line to lineAll nets (between the wires of different polarity for U_)

line to earth

Urms or U_ in V

Urms or U_

Urms or U_

12,5

12,5

-

24

25

-

25

25

-

30

32

-

42

50

-

48

50

-

50*)

50

-

60

63

-

60/30

63

32

100**)

100

-

110

125

-

120

125

-

150**)

160

-

220

250

-

220/110

250

125

240/120

250

125

300**)

320

-

440/220

500

250

600**)

630

-

960/480

1000

500

1000**)

1000

-

*) This voltage can be the same as the rated voltage of equipment.

**) These values correspond to the values of table 1