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.
Input 24VAC, 40VA. Class 2 transformer.
Fire Alarm Panel or Access Control trigger input.
12VDC or 24VDC selectable outputs.
12VDC @ 1.75A or 24VDC @ 0.9A supply current.
Two (2) Class 2 Rated power-limited outputs.
Fail-Safe/Fail-Secure lock output (switched).
Auxiliary power output (unswitched).
PTC protected outputs, rated @ 2.5A.
Filtered and electronically regulated output.
Short circuit and thermal overload protection.
Built-in charger for sealed lead acid or gel type batteries.
Automatic switch over to stand-by battery when AC fails.
AC fail supervision (form "C" contacts).
Supervised Fire Alarm Disconnect (Latching w/reset or Non-Latching).
AC input and DC output LED indicators.
Operating: 0° C to 49° C (32° F to 120° F).
Storage: - 20° C to 70° C ( - 4° F to 158° F).
Relative Humidity 85% +/- 5%.
BTU/Hr (approx.): 11 BTU/Hr.