Securitron AQU243-8C - Manual (Page 3)

Installation Instructions AQU126, AQU126-8C, AQU243 and AQU243-8C
AQU126, AQU126-8C, AQU243 and AQU243-8C Instructions Doc.# 500-33025 Rev. B
Page 3 of 6
The AQU243 and AQU126 DC output is not class II power limited. The DC output of the AQU243 or AQU126 is fed
to the distribution board where each output has a PTC circuit breaker. The outputs from the PTC circuit breakers are
class II power-limited. You must keep a .25” minimum spacing of power-limited wires to non-power limited wiring.
The input and output terminals on the PDB-8C are self-clamping and can accept multiple wires from 10awg to
24awg. Each output has a Green LED adjacent to its output that indicates voltage present. Adjacent to the input
terminals of the PDB-8C board is main Power LED and Fuse. The fuse is an ATO automotive type. Replace with
recommended size. The main power LED will be Green when main power is on. If polarity is incorrect the main LED
will light RED.
DC Power LED adjacent to battery connector is ON Red when main DC is on.
Battery Connector is marked –Bat+. This is a .156” 2 position header with lock. The provided battery cable plugs
in to this. The provided cable is 12” long. For remote battery mounting, a 36” battery cable is available, part WA-
36IBAT. The battery cable wires are Red and Black. The red connects to the positive and black to the negative of
the battery. The AQU243 24vdc model comes with a 15” black wire with female slip on connectors on each end for
connecting 2 12v batteries in series.
Specifications
AC Input: 3 position terminal block in High Voltage barrier. Line, Neutral, and Earth Ground
AC Input ............................................................................................................................... 90-250vac/47-63Hz/150W
AC Led indicator .................................................................................................................................................. Green
Note: The Ground connection is connected to the enclosure back with a metal stand off. In the case of
enclosures with a removable lid, a ground wire is used to ensure the ground continuity to the lid. If lid is
removed, this ground wire must be reconnected securely.
Wide range AC input does not require any selection switching. Earth ground terminal must be properly connected to
earth ground.
AC Fuse Link is inside unit for catastrophic failure. This fuse is not field replaceable, unit must be returned to factory
for service should this fuse blow. A blown fuse is indicated by the AC Led indicator off with AC power applied.
DC Outputs:
AQU243 Total Continuous Output rating (not power limited) ................................... 20.0-27.8vdc, 24vdc nominal, 3A
AQU243-8C with PDB-8C-.720A Outputs 1-8 Power Limited Class II PTC circuit breakers rating .................. 720ma
AQU126 Total Continuous Output rating (not power limited) ................................... 10.0-13.9vdc, 12vdc nominal, 6A
AQU126-8C with PDB-8C-1.5 Outputs 1-8 Power Limited Class II PTC circuit breakers rating ......................... 1.50A
PDB-8C (C option) has main LED and 8 output LEDs adjacent to each output (8) ............................................ Green
Typical Output Voltage AQU243/AQU126 ........................................................................................ 27.3vdc/13.65vdc
Typical Output Ripple & Noise AQU243/AQU126 ...................................................................................... 50mv/25mv
Current Overload Short Circuit Protection ............................................................................................................... Yes
Battery PTC Circuit Breaker AQU243/AQU126 .................................................................................................. 3A/6A
Main Power LED adjacent to battery connector .................................................................................................... RED
Over Temperature protection ................................................................................................................................... Yes
Ambient Operating Temperature Range .................................................................................................... 0
o
C to 49
o
C
Switching Frequency ......................................................................................................................................... 27KHz
Supervisory Functions:
Battery Cutoff Voltage AQU243/AQU126 ............................................................................................ 10.2vdc/20.4vdc
Battery Cutoff relay contacts (no user connections) ............................................................................... 15A Resistive
AC fail trip point AQU243/AQU126 .................................................................................................. <25.8vdc/12.9vdc
AC fail trip point equates to about 99% battery capacity remaining
AC fail relay form C Contacts .............................................................................................................. 2A up to 120vac
Low battery trip point AQU243/AQU126 ................................................................................................ <22.0/11.0vdc
Low battery relay form C Contacts ...................................................................................................... 2A up to 120vac
AC fail, Low Battery, and Battery cut-off Relays are normally energized for fail-safe operation.
Battery Charging: (Header plug marked –Bat+)
The battery charger is precision set to float charge 12v or 24v sealed or wet lead acid batteries. Typically two 12v
batteries are connected in series for 24v. The Amp hour capacity must be between 4Ah and 40Ah capacity.
Mechanical Characteristics: