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Switch Installation
Connecting to Power
Warning:
An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that
no exposed portion of the DC-input power source wire extends from the power and relay connector. Statement 122
7.
Insert the twisted-pair wire leads into the terminal block line and neutral connections. Insert the wire (labeled number
1 in
Figure 8 on page
page
21) lead into the line wire connection. Ensure that only wire with insulation extends from the connectors. See
Figure 8 on page
8.
Tighten the line and neutral terminal block screws.
Note:
Torque to 8 in.-lb, not to exceed 10 in-lb.
9.
Connect the red wire to the positive pole of the DC power source, and connect the black wire to the return pole.
Ensure that each pole has a current-limiting-type fuse rated to 30 Amp.
Wiring the DC Power Source
Read these cautions and warnings before wiring the switch the DC power source.
Warning:
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.
Statement 1022
Warning:
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated not greater than: 3A.
Statement 1005
Warning:
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning:
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning:
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Caution:
For wire connections to the power and alarm connectors, you must use UL- and CSA-rated, style 1007 or
1569 twisted-pair copper appliance wiring material (AWM) wire (such as Belden part number 9318).
To wire the switch to a DC power source, follow these steps:
1.
Locate the two power connectors on the switch front panel labeled DC-A and DC-B.
2.
Identify the connector positive and return DC power connections. The labels for power connectors DC-A and DC-B
are on the switch panel as displayed below.
Label
Connection
+
Positive DC power connection
–
Return DC power connection
3.
Measure two strands of twisted-pair copper wire (16-to-18 AWG) long enough to connect to the DC power source.
4.
Using an 18-gauge wire-stripping tool, strip each of the two twisted pair wires coming from each DC-input power
source to 0.25 inch (6.3 mm) ± 0.02 inch (0.5 mm). Do not strip more than 0.27 inch (6.8 mm) of insulation from the
wire. Stripping more than the recommended amount of wire can leave exposed wire from the power connector after
installation.
21) lead into the neutral wire connection and the wire (labeled number 2 in
21.
23
Figure 8 on
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