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AL176X220
Overview:
The AL176X220 is a power supply/charger that converts a 220VAC (working range 198VAC - 256VAC), 50/60Hz input
into 12VDC or 24VDC output (see specifications). It must be installed in accordance with National and Local Electrical
Codes and Regulations.
Specifications:
Power Supply Output Specifications:
Output VDC
Jumper
Max. Stand-by Load DC
Max. Alarm Load DC
Battery (optional)
12VDC
Jumper Removed
1.75 amp
1.75 amp
12VDC
24VDC
Jumper On
1.75 amp
1.75 amp
24VDC
Stand-by Specifications:
Output
4 hr. of Stand-by and 5 Minutes of Alarm
12VDC / 7 AH Battery
Stand-by = 1.25 amp
Alarm = 1.25 amp
24VDC / 7 AH Battery
Installation Instructions:
Wiring methods must 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.
See Terminal Identification Chart on page 3 for a description of each terminal function.
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 the 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. 4).
Secure enclosure to earth ground.
2. Connect AC power to the black and white flying leads of the transformer. Secure green wire lead to earth ground.
Use 18 AWG or larger for all power connections (Battery, AC input). Use 22 AWG to 18 AWG for power-limited
circuits (DC output, AC FAIL and LOW BAT supervisory relays).
Keep power-limited wiring separate from non power-limited wiring (220VAC 50/60Hz Input, Battery Wires).
Minimum 0.25” spacing must be provided.
3. Set the AL176X220 to the desired DC output voltage by either removing or leaving the jumper.
(Power Supply Output Specification Table).
4. Measure output voltage before connecting devices. This helps avoiding potential damage.
5. Connect battery to the terminals marked [+ BAT -] on the power supply board (battery leads included). Use two
(2) 12VDC batteries connected in series for 24VDC operation.
Note: 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.
AL176X220
Access Control Power Supply/Charger
Input:
• Input 220VAC (working range 198VAC - 256VAC),
50/60Hz, 0.3 amp.
Output:
• 12VDC or 24VDC selectable output.
• 1.75 amp supply current.
• PTC protected output, rated @ 2.5 amp.
• Filtered and electronically regulated output.
• Short circuit and thermal overload protection.
Battery Backup:
• Built-in charger for sealed lead acid or gel type batteries.
• Automatic switch over to stand-by battery when AC fails.
Battery Backup
(cont’d)
:
• Maximum charge current 0.4 amp.
Supervision:
• AC fail supervision (form “C” contacts).
• Low battery supervision (form “C” contacts).
Visual Indicators:
• AC input and DC output LED indicators.
Enclosure Dimensions
(H x W x D approx.)
:
13.5” x 13” x 3.25” (342.9mm x 330.2mm x 82.55mm).
- Accommodates up to two (2) 12VDC/7AH batteries.
