Specifications

Equipment list B
Name of Series Environment Model Series Description Mount
SpectrAlert Advance
Outdoor PC4 (K) Horn Strobe,
4-Wire
Ceiling
SpectrAlert Advance
Outdoor SC (K) Strobe Ceiling
SpectrAlert Advance
Outdoor H (K) Horn Wall/Ceiling
SpectrAlert Advance
Indoor CH Chime Wall/Ceiling
SpectrAlert Advance
Indoor CHS Chime Strobe Wall
SpectrAlert
Indoor CH24MC Chime Strobe Wall
SpectrAlert
Indoor CH1224 Chime Wall/Ceiling
SpectrAlert
Indoor SP2x1224MC Speaker Strobe Wall
SpectrAlert
Indoor SP3x1224MC Speaker Strobe Wall
SpectrAlert
Outdoor SP2R1224MCK Speaker Strobe Wall
SpectrAlert
S1224MC Strobe Wall
SpectrAlert
P1224MC Horn Strobe,
4-Wire
Wal
l
SpectrAlert
H12/24 Horn Wall/Ceiling
Cooper/Wheelock Compatible NAC Devices
The Quaestor-SZU Releasing Fire Control Panel accepts compatible Cooper/Wheelock 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 500 mA current threshold. Installers must limit the population of
compatible devices in each NAC circuit by this 500 mA threshold.
As with any circuit, 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 Quaestor-SZU Releasing Fire Control Panel can also safely operate combinations of device-loads on NAC 1 and
NAC2. 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 500 mA available from each NAC output. Safety High-
Tech 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 500 mA threshold of each NAC output.
SAFETY HI-TECH
Quaestor-SZU Releasing Fire Control Panel - Installation and Operation Manual
Revision E03.04
SHM80001
94 of 155