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Overview:

LPS5C24X linear power supply/charger will convert a 115VAC 50/60Hz input to a 3.5 amp 24VDC continuous true UPS
output. The output stays regulated until the battery discharges to 25% capacity.

Specifications:

Input:

• 115VAC 50/60Hz, 1.6 amp.

Output:

• 24VDC @ 3.5 amp.
• Filtered and electronically regulated.
• Thermal and overload protection and 

with autoreset.

Battery Backup:

• Built in charger for sealed lead acid batteries.
•  Automatic switchover to stand-by 

battery when AC Fails.

•  PTC battery protection. 
• Maximum charge current .3 amp.

Visual Indicators:

• AC input and DC output LED indicators.  

Supervision:

• Low battery and AC fail supervision

(dry relay outputs 1 amp @ 28VDC).

Additional Features:

• Includes battery leads.

Enclosure Dimensions:

13”H x 13.5”W x 3.25”D

Power Supply Voltage Output Specifications:

Output VDC

Maximum Load DC

24VDC

3.5 amp

Installation Instructions:

The LPS5C24X should be installed in accordance with The National Electrical Code and all applicable 
Local Regulations.
1. Mount the LPS5C24X in desired location.
2. Connect AC power to the black and white flying leads of the transformer (Fig. 1). Connect green lead to the earth 

ground. Use 18 AWG or larger for all power connections (Battery, DC output).

3. Measure output voltage before connecting devices. This helps avoid potential damage.
4. Connect devices to be powered to terminals marked [+ DC -- ] (Fig. 1)
5. Connect battery to 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.

Terminal Identification:

Terminal Legend

Function/Description

AC/AC

Low voltage AC input (12VAC 120VA). Altronix part #T24120.

+ BAT --

Stand-by battery connections.

+ DC --

24VDC @ 3.5 amp continuous output.

LPS5C24X
Linear Power Supply/Charger

Rev. 051105

Green

Lead

Battery connection (non-power limited)

Wire 
Strap
(from
Enclosure
to Door)

Battery & AC

Supervision

Circuit

(power limited)

AC

AC

+  DC  ---

+  BAT  ---

BA

T

FA

IL

NO    C   

 NC   NO  

 C    NC

24VDC

AC

FA

IL

White

Lead

Black

Lead

Input 115VAC

50/60Hz
1.6 amp

XFMR Bracket

X
F

M
R

Green

Lead

(Ground)

Battery 1

+

---

---

+

12VDC

4AH

12VDC

4AH

Battery 1

Battery 2

Fig. 1

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