APS-300 Series Installation continued
APS-300 Instructions
Page 2
500-33315_A
Description
The APS-300 Series Power Supplies are heavy duty self contained, efficient clean off-line switching power supplies that are
selectable between 9.8VDC-13.7VDC at 2.8 Amps, and 20.0VDC-27.5VDC at 1.4 Amps. With the universal AC input, these
supplies may be connected anywhere in the world with no plug-in transformer or any alterations. These power supplies have
exceptional brown out capability with operation down to 60VAC. The extensive filtering system provides a very clean DC output
that can power the most sensitive electronic controls and reader where a linear power supply is recommended. All of the supplies
are power limited and thermally protected. All output faults are self restoring.
The APS-300 series have a precision lead acid battery(s) charger that obtains maximum battery life while providing a 9.8VDC-
13.7VDC or 20.0VDC-27.5VDC uninterruptible power supply. The APS-300 Series are protected against Battery(s) reversal,
shorting or overloading. Before connecting AC and battery(s), set 12V/24V selector jumpers to the desired voltage.
Caution
, damage will occur if jumpers are moved with DC output load or Battery connected. Confirm proper voltage before
connecting devices.
The APS-300 has the additional supervisory features of a set of form “C” relay contacts that indicates AC power status and a
special electronic circuit that limits the output current to provide power limiting and load disconnect when battery is depleted.
Specifications
AC Input: L, N, G - 3P Orange Terminal block
Safety block with recessed hardware insulation that will
accept up to 12AWG
L= Line, N= Neutral, and G = Ground
AC Input Rating ....................... 110-240VAC/47-63Hz 130W
Note: The Ground connection on the APS-300 is connected to
the enclosure with a metal standoff.
AC LED Indicator (Next to AC Input Terminal)
The AC indicator is a green LED, which is illuminated when
AC is present.
AC Line Primary Fuse
Fuse: GMA-2 5mm x 20mm 2A 250VAC
Replace this fuse only while the equipment is electrically
disconnected from the branch-circuit supply. The proper
size 2A fuse must be used.
DC VOLTAGE SELECTOR JUMPER J1
The selector jumper J1 selects the voltage to 12 or 24VDC.
As marked on the PCB, jumping 1&2 and 3&4 sets the supply
to 12V range. Jumping 2&3 sets the supply to the 24V range.
CAUTION
To prevent damage, remove DC load and
battery(s) connections before switching selector J1 jumpers.
DC OUTPUT: 2P Terminal block
Output voltage Range: 12V/24V
................................... 9.8VDC-13.7VDC/20.0VDC-27.5VDC
Output voltage typical AC ON .................. 13.65/27.30VDC
Output continuous current 12V/24V .................... 2.8A/1.4A
Current Overload Short Circuit Protection ................... Yes
Thermal runaway Protection ......................................... Yes
Current Overload and Thermal shutdown will auto-restart
without removing load.
Power limiting ................................................................. Yes
Ambient operating temp. range ....... -32
o
F(0
o
) to 120
oF
(49
o
C)
Storage Temperature .................................... -60
o
F to 190
o
F
Switching Frequency ................................................ 132KHz
DC LED Indicator (Adjacent to DC Output) ...................
Red
Battery Connector: ...............
(Header plug marked [–Bat+])
The battery charger is set to charge 12V or 24V sealed or wet
lead acid batteries. Two 12V batteries are connected in
series for 24V with a provided wire assembly p/n: WA-24SW.
A 15” Battery cable assembly p/n: WA-15IBAT is provided
that plugs from module battery connector to the battery. Red
(+) 12VDC, Black (–) Neg.
Each of the 3 wires listed above that connect to the standby
Batteries are covered with special clear tubing that provides
additional insulation to ensure proper separation or Power
Limited and NON Power Limited wires
.
Supports any type of lead acid Battery(s)
.......................................................................... 12v 4AH-18Ah
UL evaluated with 18Ah on 12V and (2) 9Ah on 24V sealed
lead acid battery(s)
Battery(s) PTC self resetting Circuit Breaker ............... 3A PTC
Battery(s) Reverse hookup protection .............................. Yes
To estimate the recharge time in hours for depleted battery(s),
multiply the AH rating times 4 (Ah x 4). As an example, a 24V
system with two depleted 12v 7Ah batteries would take about
28 hours to re-charge.
