3-5
CAUTION: The National Electric Code limits the maximum number of conductors that can be
installed in conduit and wiring boxes depending on the size of the conduit, the volume
of the boxes, and the gauge of the wire used. Make sure that wiring used for
SAFEPATH
®
Panel installation complies with the latest NEC, NFPA, Local, State,
County or Province requirements.
Field Wiring Connections
All SAFEPATH
®
Panel wiring terminals are designed to accept #12 AWG through #22 AWG wiring (one
wire per terminal). Proper wire gage considerations for the NAC Circuit must take into account current
requirements versus length of run.
Prepare System Wiring Diagram
.
1. Prepare a system-wiring diagram to include all Notification Appliances, ancillary equipment, and
internal connections and power sources as required.
Visual Notification Appliance Output Wiring
Available alarm strobe current is a maximum of 2 Amps at 24VDC. Table 3-1 shows available strobe
current using the standard calculation for a Temporal Code 3 signal. The SAFEPATH
®
Panel does
not include any optional modules. Complete calculation information for other configurations is located
in Section 3-8 Backup Battery Calculations.
Wire gauge may vary for each visual notification appliance output circuit on the panel. Wire gauge
selection should involve consideration of all factors including, wire loop length, maximum current draw of
each appliance, number of appliances, and maximum voltage drop allowable.
• Strobe NAC has a 24VDC, 2.0 amps maximum output
• Strobe NAC meets Class B supervision requirements for notification appliance circuits.
• Each output circuit shall have a UL LISTED, 10K Ohm, 1W, EOLR installed across the last visual
notification appliance. If the output is unused, a UL LISTED, 10K Ohm, 1W, EOLR shall be
placed across the output terminals. Each amplifier module contains the required number for the
supervised outputs. If more are needed, recommend using Wheelock, Inc. End of Line Resistor
Kit (Model Number EOLK, Part# 5076), which contains Eight (8) UL LISTED 10K Ohm 1W
resistors.
Wiring Diagrams for Visual Portion of Audio/Visual Notification Appliances
+
_
STROBE
UL LISTED 10K Ohm
1W EOLR
Figure 3-3
Wiring Diagram for Visual Notification Appliance Output
CAUTION: Do not loop wire under terminals. Break wire run to provide supervision of
connection.
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