
AL175ULB is a power-limited power supply/charger that converts a 24VAC input
into two (2) individual PTC protected 12VDC or 24VDC outputs (see specifications).
It is intended for use in applications requiring UL Listing for Access Control (UL294)
and applications requiring an interface with Fire Alarm Control Panels.
AL175ULB
Switching Power Supply/Charger
Rev. DSAL175ULB_08292013
Overview
Specifications
Altronix Corp. - 140 58th Street, Brooklyn, NY 11220 • 718-567-8181 • 888-258-7669 • altronix.com
UL Recognized component for Access Control System Units (UL 294).
Agency Approvals
2.4"
0.41”
(10.41mm)
0.29”
(7.37mm)
4.9”
(124.46mm)
3.0”
(76.2mm)
5.8”
147.32mm
0.156”
(3.92mm)
AL175ULB
Board Dimensions (W x L x H) (approximate):
3.0” x 5.8” x 1.5” (76.2mm x 147.32mm x 38.1mm)
Input:
• Input28VAC/56VA.
• Accesscontroltriggerinput.
Output:
• 12VDC or 24VDC selectable outputs.
•1.75ampsupplycurrent.
• Two(2)Class 2 Rated power-limited outputs.
- Fail-Safe/Fail-Secure lock output (switched).
- Auxiliary power output (unswitched).
• PTCprotectedoutputs,rated@2.5amp.
• Filteredandelectronicallyregulatedoutput.
• Shortcircuitandthermaloverloadprotection.
Battery Backup:
• Built-inchargerforsealedleadacidor
gel type batteries.
Battery Backup (cont’d):
• Automaticswitchovertostand-bybattery
when AC fails.
• Maximumchargecurrent0.4amp.
Supervision:
• ACfailsupervision(form“C”contacts).
• SupervisedFireAlarmDisconnect
(Latching w/reset or Non-Latching).
Visual Indicators:
• ACinputandDCoutputLEDindicators.
Electrical:
• Operatingtemperature:0ºCto49ºCambient.
• 10.75-21.5BTU/Hr.
Mechanical:
• Productweight(approx.):1.5 lbs. (0.68 kg.).
• Shippingweight(approx.):1.9lbs.(0.86kg.).
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