Altronix AL400ULXB2 12V/24V 4A/3A Power Supply Charger Board
The Altronix AL400ULXB2 is a power supply/charger board that delivers selectable 12VDC or 24VDC output with automatic battery backup switchover, designed to reliably power maglocks, strikes, and other access control devices.
AL400ULXB2 Power Supply/Charger Board
The AL400ULXB2 from Altronix is a low-voltage power supply and battery charger board designed to deliver reliable DC power for access control, security, and fire alarm applications. It provides a selectable output of 12 VDC or 24 VDC with a total current capacity of 4 A or 3 A respectively. The unit is equipped with short-circuit and thermal overload protection and includes battery backup capability for uninterrupted operation during power loss.
Engineered for efficiency and durability, the AL400ULXB2 automatically switches to standby battery power when AC fails, ensuring zero voltage drop during transition. LED indicators provide real-time status of AC input, DC output, and battery condition. It’s the ideal solution for powering maglocks, strikes, and other access control devices where regulated, filtered DC output is essential.
Key Features
- Selectable 12 VDC or 24 VDC output with 4 A / 3 A total current
- Automatic switch-over to backup battery during AC loss
- Thermal and short-circuit protection for system safety
- Battery charging circuit for sealed lead-acid or gel type batteries
- Supervision relays for AC fail, low battery, and battery presence
- LED indicators for quick visual diagnostics
- UL Listed for access control, fire, and burglar alarm systems
Applications
The AL400ULXB2 is ideal for powering single or multiple access devices, maglocks, electric strikes, or control panels in commercial, industrial, and institutional security environments. Its compact board-only design allows for integration into custom enclosures or OEM system builds.
Technical Specifications
- Input: 115 VAC, 60 Hz, 3 A
- Output: 12 VDC @ 4 A or 24 VDC @ 3 A (selectable)
- Battery Backup: Auto-switch to backup battery on AC failure
- Indicators: AC input, DC output, battery status LEDs
- Supervision: AC fail, low battery, and battery presence (Form “C” contacts)
- Dimensions: 4.5" W × 7.1" L × 1.44" H
- Agency Approvals: UL1481, UL294, UL603, UL1069, CSA C22.2 No. 205
- Warranty: Lifetime
Conclusion
When dependable DC power is needed in an access control or security setup, the AL400ULXB2 delivers trusted performance and safety compliance in a compact, efficient design. Built by Altronix, it’s engineered for long-term reliability and ease of integration.