
Agency Listings:
• UL Recognized component for Access Control
System Units (UL 294), Standard for Safety
for Fire Protective Signaling Systems (UL 1481).
Input:
• Input 115VAC / 60Hz, 4.4 amp.
Output:
• 24VDC output (UL 1481).
•
8 amp continuous supply current with 10 amp
supply current during alarm.
• 24VAC @ 10 amp (UL 294).
•
Filtered and electronically regulated output.
Battery Backup:
• Built-in charger for sealed lead acid or gel type batteries.
• Maximum charge current 3.6 amp.
Battery Backup (continued):
• Automatic switch over to stand-by battery
when AC fails.
• Zero voltage drop when switched over to battery backup.
Visual Indicators:
• AC input and DC output LED indicators.
Supervision:
• AC fail supervision (form "C" contacts).
•
Low battery and battery presence supervision
(form "C" contacts).
Additional Features:
• Short circuit and thermal overload protection.
Board Dimensions (approximate):
5.2”W x 7.7”L x 2.5”H
Stand-by Specifications:
Output 15 Min. of Stand-by & 4 hr. of Stand-by & 24 hr. of Stand-by & 60 hr. of Stand-by &
5 Mins. of Alarm 5 Mins. of Alarm 5 Mins. of Alarm 5 Mins. of Alarm
24VDC / 12AH Battery Stand-by = 8 amp Stand-by = 1.5 amp Stand-by = 200mA Stand-by = 100mA
Alarm = 10 amp Alarm = 10 amp Alarm = 10 amp Alarm = 10 amp
24VDC / 65AH Battery Stand-by = 8.0 amp Stand-by = 1.5 amp Stand-by = 500mA
Alarm = 10 amp Alarm = 10 amp Alarm = 10 amp
Installation Instructions:
The AL1024ULXB should be installed in accordance with article 760 of The National Electrical Code as well as
NFP
A 72 and all applicab
le Local Codes.
1. Mount the AL1024ULXB in desired location/enclosure.
2. Connect unswitched AC power (115VAC 60Hz to terminals marked [L, G, N]
(Fig. 1). Use 14 AWG or larger
for all po
wer connections (Battery, AC input, DC output). Use 22 AWG to 18 AWG for power limited circuits
(AC Fail/Low Battery reporting).
Keep power limited wiring separate from non-power limited wiring
(115VAC / 60Hz Input, Battery Wires). DC output Minimum .25” spacing must be provided.
3. Connect devices to be powered to terminals marked [-- DC +] (Fig. 1).
4.
Measure output voltage before connecting devices. This helps avoid potential damage.
5.
F
or Access Control applications, batteries are optional. When batteries are not used, a loss of AC will result in the
loss of output v
oltage.
When the use of stand-b
y batteries is desired
, they must be lead acid or gel type. Connect
battery to terminals marked [+ BAT -]
(Fig. 1).
6. It is required to connect appropriate signaling notification devices to AC FAIL & BAT FAIL
(Fig. 1) supervisory
relay outputs. Use 22AWG to 18AWG wires. AC FAIL will report in 5 minutes.
T
o dela
y report 6 hours cut “AC delay” jumper.
AL1024ULXB - UL Recognized,
Power Supply/Charger
Rev. 041602
Overview:
The AL1024ULXB is a power supply that converts a 115VAC / 60Hz input, to a 24VDC non-power limited output,
(see specifications).
Specifications:
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