Installation Instructions

Overview:
LPS3C12X linear power supply/charger is specifically designed to provide the power needed by the most demanding
security and access control applications. It converts a 115VAC 50/60Hz input to a 2.5 amp, 12VDC output.
Specifications:
Input:
• Input115VAC50/60Hz,0.5amp.
Output:
• 12VDCoutput.
•2.5ampcontinuoussupplycurrent.
•Filteredandelectronicallyregulatedoutput.
•Thermalandshortcircuitprotectionwithautoreset.
Battery Backup:
•Automaticswitchovertostand-bybatterywhenACFails.
•Built-inchargerforsealedleadacidorgeltypebatteries.
• Maximumchargecurrent0.5amp.
•Fusedbatteryprotection(circuitbreakersavailable).
• Includesbatteryleads.
Visual Indicators:
• ACinputandDCoutputLEDindicators.
Enclosure Dimensions (H x W x D):
15.5”x12”x4.5”(393.7mmx304.8mmx114.3mm)
Power Supply Voltage Output Specifications:
Output VDC Maximum Load DC
12VDC 2.5 amp
Installation Instructions:
TheLPS3C12XshouldbeinstalledinaccordancewithTheNationalElectricalCodeandallapplicableLocalRegulations.
1. MountLPS3C12Xinthedesiredlocation.
2. ConnectACpowertotheblackandwhiteflyingleadsofthetransformer(Fig. 1).
Use18AWGorlargerforallpowerconnections(Battery,DCoutput).
3. Measureoutputvoltagebeforeconnectingdevices.Thishelpsavoidingpotentialdamage.
Keep power-limited wiring separate from non power-limited wiring (115VAC / 60Hz Input, Battery Wires).
Minimum 0.25” spacing must be provided.
CAUTION: Do not touch exposed metal parts. Shut branch circuit power before installing or servicing equipment.
There are no user serviceable parts inside. Refer installation and servicing to qualified service personnel.
4. Connectdevicestobepoweredtotheterminalsmarked[–DC+](Fig. 1).
5. Connectbatterytotheterminalsmarked[–BAT+](Fig. 1)ontheunit(batteryleadsincluded).
Note:Whenbatteriesarenotused,alossofACwillresultinlossofoutputvoltage.
Maintenance:
Unit should be tested at least once a year for the proper operation as follows:
Output Voltage Test:UndernormalloadconditionstheDCoutputvoltageshouldbecheckedforthepropervoltagelevel
(Power Supply Voltage Output Specifications Chart).
Battery Test:Undernormalloadconditionscheckthatthebatteryisfullycharged,checkspecifiedvoltagebothatthebattery
terminalandattheboardterminalsmarked[–BAT+]toensurethatthereisnobreakinthebatteryconnectionwires.
Note:Maximumchargingcurrentunderdischargeis500mA.
Note:Expectedbatterylifeis5years;however,itisrecommendedchangingbatteriesin4yearsorlessifneeded.
LPS3C12X
Linear Power Supply/Charger
XFMR
White
Lead
Black
Lead
Input 115VAC
50/60Hz
0.5 amp
AC
DC
AC
AC
-- DC +
-- BAT +
SW1
12V-CLOSED
24V-OPEN
Fig. 1

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