8 to 10 mm
2.
4 mm max. (except ground terminals)
2.7 mm max. (ground terminals)
1.6 mm max. (except ground terminals)
2.0 mm max. (ground terminals)
l
Using Twisted or Solid Wires
If you use twisted wires or solid wires, use the following table to determine the correct wire specifi-
cations.
Terminals
Wire type
Wire size
Conductor
length (strip-
ping length)
Twisted wires Solid wire
Classifica-
tion
Current
capacity
Plated
Unplat-
ed
Plated
Unplat-
ed
All termi-
nals except
ground ter-
minals
2 A max. Possible Possible Possible Possible
0.08 to 1.5 mm
2
(A
WG28 to 16)
8 to 10 mm
Greater
than 2 A
and 4 A or
less
Not pos-
sible
Possi-
ble
*1
Not pos-
sible
Greater
than 4 A
Possi-
ble
*1
Not pos-
sible
Ground
terminals
--- Possible
Possible Possi-
ble
*2
Possi-
ble
*2
2.0 mm
2
9 to 10 mm
*1. Secure wires to the screwless clamping terminal block. Refer to Securing Wires
on page 3 - 13 for how to
secure wires.
*2.
With the NX-TB£££1 Terminal Block, use twisted wires to connect the ground terminal. Do not use a
solid wire.
Conductor length (stripping length)
Precautions for Correct Use
• Use cables with suitable wire sizes for the carrying current. There are also restrictions on the
current due to the ambient temperature. Refer to the manuals for the cables and use the ca-
bles correctly for the operating environment.
• For twisted wires, strip the sheath and twist the conductor portion. Do not unravel or bend the
conductor portion of twisted wires or solid wires.
Unravel wires Bend wires
NG
NG
3 Installation and Wiring
3 - 12
NX-series Safety Control Unit User's Manual (Z930)