Power Supply Voltage Output Selections:
Stand-by Specifications:
Installation Instructions:
The AL400ULXB should be installed in accordance with article 760 of The National Electrical Code or NFPA 72
as well as all applicable Local Codes.
1. Mount the AL400ULXB in desired location/enclosure.
2. Set the AL400ULXB to the desired DC output voltage by setting SW1
(Fig. 2, pg. 2)
to the appropriate position
(
refer to Power Supply Voltage Output Selections chart
).
3. Connect AC power (115VAC 50/60Hz) to terminals marked [L, G, N]
(Fig. 2, pg. 2)
. Use 18 AWG or larger for all
power connections (Battery, DC output, AC input). 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).
Minimum .25” spacing must be provided.
4. Connect devices to be powered to terminals marked [ – DC +]
(Fig. 2, pg. 2)
.
5. Measure output voltage before connecting devices. This helps avoid potential damage.
6. For Access Control applications, batteries are optional. When batteries are not used a loss of AC will result in the
loss of output voltage. When the use of stand-by batteries is desired, they must be lead acid or gel type.
Connect battery to terminals marked [+ BAT – ]
(Fig. 2, pg. 2)
. Use two (2) 12VDC batteries connected in series for
24VDC operation (battery leads included).
AL400ULXB
UL Recognized Power Supply/Charger
Rev. 120600
Agency Listings:
• UL Recognized component for: Access Control
System Units (UL 294), Power Supplies for use with
Burglar-Alarm Systems (UL 603), Power Supplies
for Fire Protective Signaling Systems (UL 1481).
Input Rating:
• Input 115VAC 50/60Hz, 1.45 amp.
Output Rating:
• Class 2 Rated power limited output.
• 12VDC or 24VDC selectable output.
• 12VDC @ 4 amp or 24VDC @ 3 amp continuous
supply current.
• Filtered and electronically regulated output.
Battery Backup:
• Built-in charger for sealed lead acid or gel type batteries.
• Maximum charge current .7 amp.
• 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):
4.6”W x 7.5”L x 2.7”H
OPEN SWITCH
CLOSED SWITCH
Switch Detail
---
D
C
+
L
G
N
PTC3
NC C NO NC C NO
+
B
AT
---
DC
24V - OPEN
12V - CLOSED
AC FAIL
RL2
BAT FAIL
RL1
RL3
J1
SW1
3
.5
A
2
5
0
V
Fuse
Cover
AC
De
la
y
Fig. 1
Overview:
The AL400ULXB is a power supply/charger that converts a 115VAC 50/60Hz input, into a Class 2 Rated power limited
12VDC or 24VDC output (see specifications).
Specifications:
Output
Switch Position
12VDC
SW1 - CLOSED
(Fig. 1, on right)
24VDC
SW1 - OPEN
(Fig. 1, on right)
Output
4 hr. of Stand-by &
5 Minutes of Alarm
24 hr. of Stand-by &
5 Minutes of Alarm
60 hr. of Stand-by &
5 Minutes of Alarm
12VDC / 40AH Battery
Stand-by = 4.0 amp
Alarm = 4.0 amp
Stand-by = 1.0 amp
Alarm = 4.0 amp
Stand-by = 300mA
Alarm = 4.0 amp
24VDC / 12AH Battery
--------
Stand-by = 200mA
Alarm = 3.0 amp
--------
24VDC / 40AH Battery
Stand-by = 3.0 amp
Alarm = 3.0 amp
Stand-by = 1.0 amp
Alarm = 3.0 amp
Stand-by = 300mA
Alarm = 3.0 amp
