3. Cabling
3-5
TI 30A30A10-01EN
3.3
Connecting grounding cable
3.3.1
Connecting grounding cable for the enclosure
SEE
ALSO
See “Section 1.3 Grounding
n
Grounding of enclosure” for grounding of enclosure.
CAUTION
The protective conductor terminal of the N-IO field enclosure should be connected to the
protective grounding system.
n
Grounding cables
Nominal conductor cross-section area: AWG6 (14 mm
2
) or more
Temperature rating of cables: Enclosure ambient tempe 35 ºC or more
Note: The cable used should be determined according to the standards in each country and region.
Note: Ensure to secure the minimum bending radius of the cable. The minimum bending radius is either the value shown in the cable
manufacturer’s specifications or six-fold of the cable conductor diameter, whichever is bigger should be applied.
n
Grounding cable termination
Use solderless lugs for power cables.
The solderless lug to use must have the dimensions given in table according to the nominal cross
sectional area of the cable for which the lug is to be used.
Crimping terminal: For round crimping terminal M10
Table Solderless lug dimensions
Nominal cross sectional area
(mm
2
)
Hole diameter
(mm)
22.0
10.3 or more
CAUTION
• Always use solderless lugs and crimp-on tool manufactured by the same manufacturer.
• The crimp-on tool must be matched to the wire thickness.
Feb. 26, 2018-00
