Name of Series
Environment
Model Series
Description
Mounting Type
Select-A-Strobe
Indoor
RSB24-153075
Strobe
Wall/Ceiling
Select-A-Strobe
Indoor
RSD24-153075
Strobe
Wall/Ceiling
Select-A-Strobe
Indoor
RSD24-75110
Strobe
Wall/Ceiling
Select-A-Strobe
Indoor
SA24 SERIES
Strobe
Wall
Select-A-Strobe
Indoor
SAD24-153075
Strobe
Wall/Ceiling
Select-A-Strobe
Indoor
SAD24-75110
Strobe
Wall
Gentex Compatible NAC Devices
The Sigma A-CP Fire Control Panel accepts compatible Gentex NAC devices for use on the special
application outputs of NAC 1 and NAC 2. The number of compatible devices that NAC 1 and NAC 2 can
each safely operate is limited by a 2.5 A current threshold. Installers must limit the population of
compatible devices in each NAC circuit by this 2.5 A threshold.
A circuit design is limited by the power source and device-loads connected to it. A combination of
device-loads can be safely installed in a circuit when the circuit is operated within the constraints of
the power source threshold. There are no exclusions for the amount of device-loads that can be safely
installed in the circuit as long as the maximum current load is below the output current available from
the power source.
The Sigma A-CP Fire Control Panel can also safely operate combinations of device-loads on NAC 1 and
NAC 2. These device-loads can include combinations such as strobes, horns, strobe/chimes,
strobe/horns and speaker strobes. The sum of this device-load combination is limited by the 2.5 A
available from each NAC output.
Kentec recommends designing and installing combinations of NAC circuits based on this “device-
load” versus “current-available” understanding.
Reference manufacturer data sheets for individual device loads and then total the loads to determine if the
sum exceeds the 2.5 A threshold of each NAC output.
Reference Section 1, Installation Wiring Documents, Notification Appliance Circuit (NAC), Specifications for
additional parameters related to the NAC 1 and NAC 2 outputs.
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