Installation Instructions

Overview:
LPS3C24X 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 24VDC continuous output.
Specifications:
Input:
• Input115VAC50/60Hz,0.7amp.
Output:
• 24VDCoutput.
• 2.5ampcontinuoussupplycurrent.
• Filteredandelectronicallyregulatedoutput.
• Thermalandshortcircuitprotectionwithautoreset.
Battery Backup:
• Automaticswitchover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
24VDC 2.5 amp
Installation Instructions:
WiringmethodsshouldbeinaccordancewiththeNationalElectricalCode/NFPA70/NFPA72/ANSI,andwithalllocal
codes and authorities having jurisdiction. Product is intended for indoor use only.
1. Mountunitinthedesiredlocation.Markandpredrillholesinthewalltolineupwiththetoptwokeyholesinthe
enclosure. Install two upper fasteners and screws in the wall with the screw heads protruding. Place the enclosure’s
 upperkeyholesoverthetwoupperscrews;levelandsecure.Markthepositionofthelowertwoholes.Removethe 
 enclosure.Drillthelowerholesandinstallthreefasteners.Placetheenclosure’supperkeyholesoverthetwo
 upperscrews.Installthetwolowerscrewsandmakesuretotightenallscrews(Enclosure Dimensions, pg. 2).
Secure enclosure to earth ground.
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
(see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bat-
tery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.
LPS3C24X
Linear Power Supply/Charger
XFMR
White
Lead
Black
Lead
AC
DC
AC
AC
-- DC +
-- BAT +
SW1
12V-CLOSED
24V-OPEN
Input 115VAC
50/60Hz
.7 amp
Fig. 1