Altronix AL600ULB, a UL-recognized power supply/charger designed for access control and security systems:

 Core Specifications

• Input Voltage: Two 28VAC/100VA transformers (connected in parallel)
• Output Voltage: Selectable 12VDC or 24VDC
• Output Current: Up to 6A continuous supply
• Battery Charging:
  • Built-in charger for sealed lead acid or gel batteries
  • Max charge current: 0.7A
  • Automatic switchover to battery during AC failure
  • Zero voltage drop during backup mode

 Supervision & Indicators

• AC Fail Supervision: Form “C” contacts
• Low Battery & Battery Presence Supervision: Form “C” contacts
• LED Indicators: AC input and DC output status

 Safety & Compliance

• Filtered and electronically regulated output
• Short circuit and thermal overload protection
• UL294 & UL1481 listed, RoHS compliant

 Physical & Environmental