Elk Products ELK-P112 User manual

PO Box 100 • Hildebran, NC 28637 • 800-797-9355 • 828-397-4200
Fax[phone]•www.elkproducts.com•[e-mail]
Power Supply in Metal Can
The ELK-P112 (12 Volt @ 1Amp) and ELK-P124 (24
Volt @ .8Amps) 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.
• 12 VDC Output (P112) or 24 VDC Output (P124)
• Auto Reset “fuseless” Overload Protection (PTC).
• VisualAC and DC Power Indicators.
• Heavy Duty Metal Enclosure
• AC and DC Surge Suppression.
• Lifetime Limited Warranty.
• Battery Recharging Capacity: 1.2Ah to 10Ah.
• Input P112: 16.5 VAC (TRG-1640 Transformer)
P124: 24 VAC (TRG-2440 Transformer)
• Output P112: 12VDC @ 1.2Amps
P124: 24VDC @ .8 Amps
• Dimensions: 7.5”W x 12.5”H x 3.75”D.
ELK-P112 / P112K
Features Specifications
ELK
PRODUCTS, INC.
ELK-P124 / P124K
[ELK-P112K pictured]
ELK- P412 / P412K
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 ifAC power is off for an
extended time. It may be ordered with a 12V, 8Ah
rechargeable battery by adding the “K” suffix.
• 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.
Features 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: 7.5”W x 12.5”H x 3.75”D.
[ELK-P412K pictured]
03/04

Instructions ELK-P112 / P124
AC Transformer Input Terminals
IMPORTANT! Connect proper Transformer
according to desired output voltage!
For
6V DC Output, connect a 12V, 40VA
For 12V DC Output, connect a 16.5, 40VA
For 24V DC Output, connect a 24V, 40VA
LED Status Indicators
(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. Step
down Transformer is defective or unplugged, or the
AC outlet is off. Battery will eventually discharge.
ON / OFF AC input is on / DC output is off. The auto-reset
overload protector is likely open due to an overload
short circuit. Try reducing some of the device load.
OFF / OFF AC input is off / DC output is off.
Battery Wires
Connect to rechargable
Lead-acid battery
1.2 Ah up to 10 Ah
(Red = "+", Black = "-")
Caution!
Heatsink
may be
Hot!
AC
TRANSFORMER - +
DC OUTPUT AC DC BATTERY
+
-
F12.5AMP
JP1 JP2 ON FOR 12V
ON FOR 24V
BOTH OFF=6V
.
..
.
BLKRED
ELK-624 6, 12, OR 24V POWER SUPPLY
Auto-Reset (Fuseless) Overload
Protector - 2.5 Amp
Automatically resets when short or
overload is removed.
JP1 JP2
6V
.
..
.
JP1 JP2
12V
.
..
..
.
.
.
JP1 JP2
24V
DC Output Terminals
Connect device(s) to be powered.
Observe + / - polarity!
P112-12VOLTOPERATION
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.
12V Powered Device
1.0A Maximum
Continuous Current
-
+
16.5V
40VA
Transformer
+ -
12V Battery
AC
TRANSFORMER
- +
DC OUTPUT AC DC BATTERY
+
-
F12.5AMP
JP1 JP2
ON FOR 12V ON FOR 24V
BOTH OFF=6V
.
..
.
BLKRED
ELK-624 6, 12, OR 24V POWER SUPPLY
24V Powered Device
800mA Maximum
Continuous Current
-
+
24V
40VA
Transformer
+ -
24V Battery
AC
TRANSFORMER
- +
DC OUTPUT AC DC BATTERY
+
-
F12.5AMP
JP1 JP2
ON FOR 12V ON FOR 24V
BOTH OFF=6V
.
..
.
BLKRED
ELK-624 6, 12, OR 24V POWER SUPPLY
P124-24VOLTOPERATION
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.

INSTALLATION / OPERATION
1. Set Master Power Switch (SW1) to Off.
2. Mountenclosurein securelocationnear
an AC power outlet that is not controlled
by a switch.(supplied power cord is 6 feet
long)
3. Connectdevicestobepowered tothe
screwterminalsforDCoutput.Thepower
distributionboard has three sets of
outputs, each set is limited to 2.5 amps.
Ifa device requires morethat 2.5 Amps,
paralleltwo setsof terminals. (DONOT
EXCEED4AMPS)
4. Connect Battery to the battery wires,
observepolarity.
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
overloadedcondition).Theconnected
devicesarenowpowered.
7. If AC power is lost, the Low Battery
circuit will disconnect the battery if it's
voltagedrops below 10Vdc. This helpsto
prevent"deepdischarging"ofthebattery.
Instructions ELK-P412
ELK-1280
12 Volt Battery
(Included with ELK-P412K)
AC
INPUT
BLACK
NEG
BATTERY
+
-
POWER
ON
POWER ON LEDS
LN -V+V
DC
OUTPUT
EARTH
GROUND
4 AMP POWER SUPPLY
ELK-967 POWER DISTRIBUTION MODULE
POWER
OFF
SW1
14.5VDC IN
+
-
RED
+12V
OUTPUT 1 NEG +12V OUTPUT 2 NEG +12V OUTPUT 3
120VAC POWER CORD (6')
GRDNEUTRLLINE
Before plugging
in the power
cord, replace
the snap-on
cover over the
AC terminals for
shock
protection
AC
POWER
ON LED
DO NOT ADJUST
(FACTORY SET)
LOAD 1
LOAD 2
LOAD 3
WARNING
SHOCK
HAZARD
FILE E127738