Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

Altronix AL400ULMX 12/24VDC Power Supply with Battery Backup

The Altronix AL400ULMX is a UL-listed power supply designed for security systems requiring selectable 12VDC or 24VDC output. The AL400ULMX integrates battery backup capability, making it suitable for applications where power continuity is critical. Dual output voltage options eliminate the need for separate units across mixed-voltage installations.

Key Features

  • UL Listed for reliable performance in regulated installations
  • Selectable 12VDC or 24VDC output configuration
  • Battery backup functionality for ride-through during power loss
  • 0.5A output at 12VDC; 8A to 10A output at 24VDC depending on configuration
  • Compact form factor suited for cabinet and enclosure mounting
  • Lifetime Limited Warranty coverage

Applications

  • Access control systems in commercial facilities
  • Alarm monitoring and signaling equipment backup power
  • Mixed-voltage security deployments requiring single supply unit

Specifications

  • Model: AL400ULMX
  • Output Voltage: 12VDC / 24VDC (selectable)
  • Maximum Current: 0.5A @ 12VDC; 8A to 10A @ 24VDC
  • Battery Backup: Yes
  • Certification: UL Listed
  • Warranty: Lifetime Limited
Specifications
Product Type: Power Supply/Charger
Approvals: UL Listed
Output Voltage: 12VDC / 24VDC
Max Current: .5A @ 12VDC / 10A @ 24VDC / 8A @ 24VDC
Type: Power Supply
Warranty: Lifetime
Battery Backup: Yes
Package Contents: VR6 Voltage Regulator and ACMS8CB Dual input Access Power Controller
Poe Power: PoE++ (802.3bt)
Mount Type: Wall; Pole; Rack
Q&A
Reviews

Altronix AL400ULMX 12/24VDC 4A UL Power Supply

$446.99
$245.99

RELATED PRODUCTS

Save $349.54
Altronix WAYPOINT5CEV 12/24VDC 4A Power Supply (view 3)
Add to Cart The item has been added

Altronix WAYPOINT5CEV

Altronix WAYPOINT5CEV 12/24VDC 4A Power Supply

Selectable 12/24VDC 4A supply for access control and surveillance

  • 12/24VDC 4A power supply with NEMA-rated enclosure
  • Field-selectable output for mixed-voltage devices
  • CE certification for international code compliance
Usually Ships in 2-3 Weeks Free shipping over $499
$775.53 $425.99 Save $349.54
The item has been added Add to quote
$775.53 $425.99 Save $349.54
Save $349.54 Add to cart Add to quote
Save $88.39
Altronix SMP5CTX 12/24VDC 4A Power Supply (view 3)
Add to Cart The item has been added

Altronix SMP5CTX

Altronix SMP5CTX 12/24VDC 4A Power Supply

Selectable 12/24VDC 4A supply for dual-voltage cabin deployments

  • 12/24VDC 4A selectable supply, field-configurable jumper
  • Lifetime warranty for permanent installation lifecycle
  • Single SKU handles legacy 12V and modern 24V hardware
In stock · Ships same business day Free shipping over $499
$288.38 $199.99 Save $88.39
The item has been added Add to quote
$288.38 $199.99 Save $88.39
Save $88.39 Add to cart Add to quote
Save $273.10
Altronix ALTV1224DCF 12/24VDC 4A Power Supply
Add to Cart The item has been added

Altronix ALTV1224DCF

Altronix ALTV1224DCF 12/24VDC 4A Power Supply

Selectable 12/24VDC compact supply with 8 fused outputs for access control

  • 4A maximum current across 8 individually fused circuits for circuit-level protection
  • Selectable 12VDC or 24VDC output to match existing security infrastructure voltage
  • Compact cabinet or wall-mount form factor fits tight equipment closet installations
Usually Ships in 2-3 Weeks Free shipping over $499
$606.09 $332.99 Save $273.10
The item has been added Add to quote
$606.09 $332.99 Save $273.10
Save $273.10 Add to cart Add to quote
Save $198.20
Altronix AL400M220 power supply terminals and connections detail
Add to Cart The item has been added

Altronix AL400M220

Altronix AL400M220 12/24VDC Power Supply 4A/3A

Dual-voltage 12/24VDC power supply for security systems, 4A/3A

  • Selectable output with momentary switch between 12VDC at 4A or 24VDC at 3A
  • UL-listed regulated output for access control, cameras, and door locks
  • Compact form factor fits standard racks and equipment enclosures
Usually Ships in 2-3 Weeks Free shipping over $499
$440.19 $241.99 Save $198.20
The item has been added Add to quote
$440.19 $241.99 Save $198.20
Save $198.20 Add to cart Add to quote
Save $197.07
Altronix AL400ULPD8CBR 12/24VDC 4A Power Supply Charger
Add to Cart The item has been added

Altronix AL400ULPD8CBR

Altronix AL400ULPD8CBR 12/24VDC 4A Power Supply Charger

Dual-voltage 12/24VDC charger with battery backup for security systems

  • Selectable 12VDC @ 4A or 24VDC @ 3A output for access control and alarms
  • Integrated sealed lead-acid battery charger with AC fail detection
  • Battery presence and low-voltage supervision for continuous operation monitoring
Usually Ships in 2-3 Weeks Free shipping over $499
$438.06 $240.99 Save $197.07
The item has been added Add to quote
$438.06 $240.99 Save $197.07
Save $197.07 Add to cart Add to quote

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources