• AL125ULB Altronix Power supply/charger board

*Actual product and finish may vary

AL125ULB is a Two (2) Output Switching Power Supply/Charger that converts a low voltage AC input into two (2) individually PTC protected 12VDC or 24VDC outputs.

Altronix AL125ULB Information


24VAC, 40VA from UL Listed, Class 2 transformer.

Access control trigger input.


12VDC or 24VDC selectable outputs.

1 amp 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 @ 2.5 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.

Maximum charge current 0.4 amp.


AC fail supervision (form "C" contacts).

Supervised Fire Alarm Disconnect (Latching w/reset or Non-Latching).


Operating temperature: 0° C to 49° C ambient.

6.14 or 12.28 BTU/Hr.

System AC input VA requirement: 55.2VA

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AL125ULB Altronix Power supply/charger board

  • Brand: Altronix
  • Product Code: AL125ULB
  • $54.00