Siemens SINUMERIK 840D

FADAL MACHINING CENTERS
40 PRE-INSTALLATION PROCEDURES MAN-0126_R1
2.6.8 CONDUIT
1. The number and size of conductors in any raceway shall not be more than will
permit dissipation of the heat.
2. The conduit must allow ready installation or withdrawal of the conductors without
damage to the conductors or to their insulation.
Table 2-6: Conduit Selection
# OF
CONDUCTORS
CONDUCTOR SIZE MINIMUM SIZE OF
CONDUIT
4
10 AWG THHN (6 mm
2
)
1/2”
4
8 AWG THHN (10 mm
2
)
3/4”
4
6 AWG THHN (16 mm
2
)
3/4”
3
4 AWG THHN (25 mm
2
)
1.0”