43
Use copper conductors only, rated at a minimum temperature of 167°F (75°C).
1. Measure a single length of stranded copper wire long enough to connect the power converter to the earth ground.
The wire color differs depending on country.
For connections from the power converter to earth ground, use shielded 18-AWG stranded copper wire, such as
Belden part number 9912 or the equivalent.
2. Measure a length of twisted-pair copper wire long enough to connect the power converter to the DC power source.
For DC connections from the power converter to the DC source, use 18-AWG twisted-pair copper wire, such as
Belden part number 9344 or the equivalent.
3. Using a 18-gauge wire-stripping tool, strip the ground wire and both ends of the twisted pair wires to 0.25 inch (6.3
mm) ± 0.02 inch (0.5 mm).
Note: Do not strip more than 0.27 inch (6.8 mm) of insulation from the wires. Stripping more than the recommended
amount of wire can leave exposed wire from the power and relay connector after installation.
4. Connect one end of the stranded copper wire to a grounded bare metal surface, such as a ground bus, a grounded
DIN rail, or a grounded bare rack.
5. Insert the other end of the exposed ground wire lead into the earth-ground wire connection on the power converter
terminal block.
Only wire with insulation should extend from the connection. See Figure 21 on page 44, item 1.
The position of the power converter varies on different switch models.
6. Tighten the earth-ground wire connection terminal block screw to 8 in.-lb torque.
Note: Do not exceed 10 in-lb torque.
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