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4 Installation and Wiring
NX-series Digital I/O Unit User’s Manual (W521)
4-3 Wiring the Terminals
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
Using Ferrules
If you use ferrules, attach the twisted wires to them.
Observe the application instructions for your ferrules for the wire stripping length when attaching fer-
rules.
Always use one-pin ferrules. Do not use two-pin ferrules.
The applicable ferrules, wires, and crimping tools are listed in the following table.
When you use any ferrules other than those in the above table, crimp them to the twisted wires so that
the following processed dimensions are achieved.
Terminal
types
Manufac-
turer
Ferrule
model
Applica-
ble wire
(mm
2
(AWG))
Crimping tool
Terminals
other than
ground ter-
minals
Phoenix
Contact
AI0,34-8 0.34 (#22) Phoenix Contact (The figure in parentheses is the
applicable wire size.)
CRIMPFOX 6 (0.25 to 6 mm
2
, AWG24 to 10)
AI0,5-8 0.5 (#20)
AI0,5-10
AI0,75-8 0.75 (#18)
AI0,75-10
AI1,0-8 1.0 (#18)
AI1,0-10
AI1,5-8 1.5 (#16)
AI1,5-10
Ground ter-
minals
AI2,5-10
2.0
*1
*1. Some AWG14 wires exceed 2.0 mm
2
and cannot be used in the screwless clamping terminal block.
Terminals
other than
ground ter-
minals
Weidmuller H0.14/12 0.14 (#26) Weidmuller (The figure in parentheses is the appli-
cable wire size.)
PZ6 Roto (0.14 to 6 mm
2
, AWG26 to 10)
H0.25/12 0.25 (#24)
H0.34/12 0.34 (#22)
H0.5/14 0.5 (#20)
H0.5/16
H0.75/14 0.75 (#18)
H0.75/16
H1.0/14 1.0 (#18)
H1.0/16
H1.5/14 1.5 (#16)
H1.5/16
8 to 10 mm
2.4 mm max.
(Terminals other than ground terminals)
2.7 mm max.
(Ground terminals)
1.6 mm max.
(Terminals other than ground terminals)
2.0 mm max.
(Ground terminals)
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