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D-55
Masterpact NW08 to NW32
Drawout, top or bottom
connection
DD383676
Using the data below, it is possible to determine the size of the copper bars and the
maximum permissible currents when making a front or rear customer connection for
a vertical, drawout NW08/NW32, taking into account the ambient temperature
around the switchboard and the IP value.
Connection to be made according to the busbar drawings supplied.
For connection cable cross-sections and quantities, see page D-46.
Customer connection
Flat bars, 5 mm thick
Devices
Permissible current (A)
Ambient temperature around the switchboard
25 °C
30 °C
35 °C
40 °C
45 °C
50 °C
IP
y
31 IP > 31 IP
y
31 IP > 31 IP
y
31 IP > 31 IP
y
31 IP > 31 IP
y
31 IP > 31 IP
y
31 IP > 31
NW08
Size per phase
2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5
b
I (A)
800
800
800
800
800
800
800
800
800
800
800
NW10
Size per phase
2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5 2b 60 x 5
b
I (A)
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
NW12
Size per phase
2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5
b
I (A)
1250 1250 1250 1250 1250 1230 1250 1200 1230 1160 1200
NW16
Size per phase
2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5 2b 80 x 5
b
I (A)
1560 1480 1520 1430 1480 1380 1430 1330 1380 1280 1330
b
connection not possible.
Note:
the values indicated above have been validated for Prisma Plus switchboards.
Designing customer
connections
Drawout Masterpact NW08 to NW32
Front or rear connection
Additional informations
Designing electrical
characteristics