Wiring To An 18-Point Screw Terminal Block - Mitsubishi MELSEC L Series User Manual

4.3.2

Wiring to an 18-point screw terminal block

(1) Precautions
• For the 18-point screw terminal block wiring, use a solderless terminal of 0.8mm or less in thickness. Up to
two solderless terminals can be connected to one terminal block.
• For an 18-point screw terminal block, a solderless terminal with insulation sleeve cannot be used. To prevent
a short when screws come loose, the junction of a solderless terminal and a cable should be covered up with
a cable tag or an insulation tube.
• Use the following wire to the 18-point screw terminal block
Core: 0.3 to 0.75mm
Outside diameter: 2.8mm or less
• Use R1.25-3 solderless terminal.
• Use UL-approved solderless terminals and, for processing, use a tool recommended by their manufacturer.
• Tighten the terminal block screws within the following specified torque range.
Terminal block screw (M3)
Terminal block mounting screw (M3.5)
For screw terminal blocks other than the 18-point screw terminal block, refer to the user's manual for the module used.
(2) Wiring method
(a) Wiring to an 18-point screw terminal block
Applicable wire size
2
(AWG22 to 18) (stranded)
Screw type
Screwdriver
CHAPTER 4 INSTALLATION AND WIRING
.
Material
Copper
Tightening torque range
0.42 to 0.58N•m
0.66 to 0.89N•m
1.
Strip the insulating coating from the cable.
2.
Connect a solderless terminal to the stripped part of
the cable.
For applicable solderless terminals, refer to the
specifications of each module.
3.
Wire the solderless terminals to the 18-point screw
terminal block.
For terminal layout, refer to the specifications of each
module.
Temperature rating
75°C or more
47
4