Power Supply in Metal Can
ELK-P112 / P112K
ELK-P124 / P124K
The ELK-P112 (12 Volt @ 1 Amp) and ELK-P124
(24 Volt @ .8 Amps) are high quality Power Supplies
featuring plug-in transformer and metal enclosure.
Both feature automatic resetting “fuseless” overload
protection and diagnostic LED indicators. They are
ideal for alarm, access control, CCTV, and many other
applications. Each can be ordered complete with
rechargeable battery by adding the “K” suffix. The
P112K includes a 12V 5Ah battery and the P124K
includes two (2) 12V 5Ah batteries.
[ELK-P112K pictured]
Features
• 12 VDC Output (P112) or 24 VDC Output (P124)
• Auto Reset “fuseless” Overload Protection (PTC).
• Visual AC and DC Power Indicators.
• Heavy Duty Metal Enclosure
• AC and DC Surge Suppression.
• Lifetime Limited Warranty.
ELK-P412
The ELK-P412 is a high current power supply packed
complete with metal can, AC power cord, and a power
distribution board. The distribution board features
three (3) sets of DC power terminals, each with
automatic resetting overload protection and power
ON indicator. It also features a master On/Off switch
and built-in low battery cut-off to protect the backup
battery from deep discharging if AC power is off for an
extended time.
Specifications
• Battery Recharging Capacity: 1.2Ah to 10 Ah.
• Input P112: 16.5 VAC (TRG-1640 Transformer)
P124: 24 VAC (TRG-2440 Transformer)
• Output P112: 12VDC @ 1.2 Amps
P124: 24VDC @ .8 Amps
• Dimensions: 12”W x 12”H x 3.5”D.
[ELK-P412 pictured]
Features
• Switching Power Supply, no transformer needed.
• Auto Reset “fuseless” Overload Protection (PTC).
• Three (3) Individual Power Outputs.
• Master Power On/Off Switch.
• Built-in Low Battery Cutoff Circuit.
• Visual Power Indicators.
• AC and DC Surge Suppression.
• Lifetime Limited Warranty.
PO Box 100 • Hildebran, NC 28637 • 800-797-9355 • 828-397-4200
Fax 828-397-4415 • www.elkproducts.com • info@elkproducts.com
08/08
Specifications
• Regulated 12 Volts D.C. Output.
• Continuous Current Rating: 4 Amps.
• AC Input Voltage Range: 85~264 VAC @ 47-63Hz.
• Low Battery Cutoff: ~/= 10 Volts.
• Ripple and Noise: 100mV p-p.
• Dimensions: 12”W x 12”H x 3.5”D.
ELK
PRODUCTS, INC.
Instructions
AC Transformer Input Terminals
IMPORTANT! Connect proper Transformer
according to desired output voltage!
For
6V DC
For
For
Output, connect a
12V DC
24V DC
Output, connect a
Output, connect a
12V, 40VA
16.5, 40VA
24V, 40VA
ELK-P112 / P124
JP1
JP2
JP2
....
12V
6V
ELK-624 6, 12, OR 24V POWER SUPPLY
TRANSFORMER
AC
JP1
JP2
JP1
.
.
.
.
....
24V
DC Output Terminals
Connect device(s) to be powered.
Observe + / - polarity!
(Green) (Red)
AC DC Indication
ON / ON AC input is on / DC output is on. Normal.
OFF / ON AC input is off / DC output is from Battery only
ON / OFF AC input is on / DC output is off. The auto-reset
OFF / OFF AC input is off / DC output is off.
LED Status Indicators
down Transformer is defective or unplugged, or the
AC outlet is off. Battery will eventually discharge.
overload protector is likely open due to an overload
short circuit. Try reducing some of the device load.
16.5V
40VA
Transformer
12V Powered Device
1.0A Maximum
Continuous Current
+-
12V Battery
-
+
. Step
DC OUTPUT
- +
AC DC
+
BATTERY
BLKRED
F12.5AMP
-
Battery Wires
Connect to rechargable
Lead-acid battery
1.2 Ah up to 10 Ah
(Red = "+", Black = "-")
ELK-624 6, 12, OR 24V POWER SUPPLY
TRANSFORMER
AC
DC OUTPUT
- +
AC DC
+
BATTERY
BLKRED
F12.5AMP
-
BOTH OFF=6V
JP1
JP2
....
ON FOR 12V
ON FOR 24V
JP1
JP2
....
BOTH OFF=6V
ON FOR 12V
ON FOR 24V
Auto-Reset (Fuseless) Overload
Protector - 2.5 Amp
Automatically resets when short or
overload is removed.
Caution!
Heatsink
may be
Hot!
P112 - 12 VOLT OPERATION
For 12 volt output, place the small black mini-jumper on the header pins marked JP1. (See Figure 1 above) Make certain that header pin JP2 is vacant.
Connect a 16.5 Vac, 40VA transformer to the AC TRANSFORMER terminals and connect a 12V battery to the red (+) and black (-) battery wires.
24V
40VA
Transformer
24V Powered Device
800mA Maximum
Continuous Current
+
24V Battery
-
+
-
ELK-624 6, 12, OR 24V POWER SUPPLY
TRANSFORMER
AC
DC OUTPUT
- +
AC DC
+
BATTERY
BLKRED
F12.5AMP
-
BOTH OFF=6V
JP1
JP2
....
ON FOR 12V
ON FOR 24V
P124 - 24 VOLT OPERATION
For 24 volt output, place the small black mini-jumper on the header pins marked JP2. (See Figure 1 above) Connect a 24 Vac, 40VA transformer to
the AC TRANSFORMER terminals. Connect two (2) 12V batteries in series using a jumper wire and the red (+) and black (-) battery wires.
Instructions
ELK-P412
INSTALLATION / OPERATION
1. Set Master Power Switch (SW1) to Off.
2. Mount enclosure in secure location near
an AC power outlet that is not controlled
by a switch.(supplied power cord is 6 feet
long)
3. Connect devices to be powered to the
screw terminals for DC output.The power
distribution board has three sets of
outputs, each set is limited to 2.5 amps.
If a device requires more that 2.5 Amps,
parallel two sets of terminals. (DO NOT
EXCEED 4 AMPS)
4. Connect Battery to the battery wires,
observe polarity.
5. Plug in the AC cord. Warning High
Voltage is now present at the power
supply AC input terminals.
6. Set the Master Power Switch to Power
On. The LEDs at the power outputs
should be on (if any are off, check for
overloaded condition). The connected
devices are now powered.
7. If AC power is lost, the Low Battery
circuit will disconnect the battery if it's
voltage drops below 10 Vdc. This helps to
prevent "deep discharging" of the battery.
ELK-967 POWER DISTRIBUTI ON MODULE
POWER
ON
SW1
POWER
OFF
POWER ON LEDS
NEG
+12V
NEG +12V
OUTPUT 2
LOAD 2
NEG +12V
OUTPUT 3
LOAD 3
OUTPUT 1
LOAD 1
4 AMP POWER SUPPLY
FILE E127738
Before plugging
in the power
cord, replace
the snap-on
cover over the
AC terminals for
shock
protection
+
14.5VDC IN
-
+
BATTERY
-
EARTH
GROUND
AC
INPUT
LN -V+V
GRDNEUTRLLINE
120VAC POWER CORD (6')
DC
OUTPUT
WARNING
SHOCK
HAZARD
AC
POWER
ON LED
DO NOT ADJUST
(FACTORY SET)
BLACK
ELK-1280
12 Volt Battery
(Included with ELK-P412K)
RED
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