Specifications

Equipment list B
SHM80001
SAFETY HI-TECH
Quaestor-SZU Releasing Fire Control Panel - Installation and Operation Manual
Revision E03.04
90 of 155
The Quaestor-SZU Releasing 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 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.
UL Listing Requirement
All control panel designs restrict the number of NAC devices installed in circuits based on the rated current threshold.
Some control panel designs further restrict the number of NAC devices installed in circuits based on device
synchronization in addition to the rated current threshold. These control panel designs can reduce the population of
NAC devices below the number of devices that would be considered for the rated current threshold.
NAC outputs of the Quaestor-SZU Releasing Fire Control Panel are not limited by conditions other than the
maximum rated current threshold. NAC outputs of the Quaestor-SZU Releasing Fire Control Panel can operate
combinations of Safety High-Tech authorized NAC devices as long as the circuit load does not exceed 500 mA.
The following statement is necessary for UL qualification and excludes device-loading combinations that are
common in most FACP installations:
The following series of Gentex NAC devices are compatible for use on the special application outputs of NAC 1 and
NAC 2 when connecting Gentex synchronization modules and operating each NAC output below 500 mA:
Those model Series in italics would be Safety Hi-Tech Multiple listed versions.
Name of Series Environment Model Series Description Mount
WSSPK Series Outdoor WSSPK24-15/75 Speaker Strobe Wall
SSPK24WLP Series Indoor SSPK24WLP Speaker Strobe Wall
SSPKCLP Series Indoor SSPK24CLP Speaker Strobe Ceiling
Commander4 Series Indoor GCC24 Horn Strobe Ceiling
Commander4 Series Indoor GCS24 Strobe Ceiling
Commander3 Series Indoor
SHT
Horn Strobe Wall
Commander3 Series Indoor
SHT
Strobe Wall
Commander3 Series Indoor GEH24 Horn Wall
NAC 1 and NAC 2 of the Quaestor-SZU Releasing Fire Control Panel can each operate a maximum of
six Gentex GES3-24 strobes when configured for 15cd outputs and synchronized with a Gentex
AVSM synchronization module.