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Wire size and terminal screw torque, Wiring the finger-safe terminal block -16, Wiring the finger-safe terminal block – Rockwell Automation 1769-OF2 Compact I/O Analog Modules User Manual

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Publication 1769-UM002B-EN-P - July 2005

2-16 Installation and Wiring

Wiring the Finger-Safe Terminal Block

When wiring the terminal block, keep the finger-safe cover in place.

1. Loosen the terminal screws to be wired.

2. Begin wiring at the bottom of the terminal block and move up.

3. Route the wire under the terminal pressure plate. You can use the bare

wire or a spade lug. The terminals accept a 6.35 mm (0.25 in.) spade lug.

4. Tighten the terminal screw making sure the pressure plate secures the

wire. Recommended torque when tightening terminal screws is 0.68 Nm
(6 in-lbs).

Wire Size and Terminal Screw Torque

Each terminal accepts up to two wires.

Table 2.4 Terminal Wire Considerations

TIP

The terminal screws are non-captive. Therefore, it is
possible to use a ring lug [maximum 1/4 inch o.d. with a
0.139 inch minimum i.d. (M3.5)] with the module.

TIP

If you need to remove the finger-safe cover, insert a
screwdriver into one of the square, wiring holes and gently
pry the cover off. If you wire the terminal block with the
finger-safe cover removed, you will not be able to put it
back on the terminal block because the wires will be in the
way.

Wire Type

Wire Size

Terminal Screw

Torque

Retaining Screw

Torque

Solid

Cu-90°C (194°F)

#14 to #22 AWG

0.68 Nm (6 in-lbs)

0.46 Nm (4.1 in-lbs)

Stranded Cu-90°C (194°F)

#16 to #22 AWG

0.68 Nm (6 in-lbs)

0.46 Nm (4.1 in-lbs)