Altronix AL1012ULXPD16 12VDC 10A 16-Output Power Supply
The AL1012ULXPD16 is a 12VDC, 10-amp regulated power supply purpose-built for distributed security and access control architectures. It accepts standard 115VAC mains input and delivers 16 independent 12VDC output circuits—a significant advantage when you need to isolate power feeds to multiple devices without cascading failures. Each output can be supervised independently, and the unit includes integrated battery backup capability with AC fail detection, low battery monitoring, and battery presence status. UL Listed construction means it meets North American safety and performance standards.
Key Features
- 16 Independent 12VDC Outputs: Eliminates the need for daisy-chaining power supplies or running parallel feeds from a single supply. Each circuit can serve a dedicated access control reader, electromagnetic lock, camera module, or alarm device without sharing current capacity.
- 10-Amp Maximum Output Current: Sufficient for mid-sized distributed installations. At maximum draw (10A @ 12VDC = 120W total), you have roughly 625 mA per output on average—enough for standard electromagnetic locks, card readers, or low-power IP cameras. Pin your exact load requirements during design.
- 115VAC Input with 12VDC Regulated Output: Standard North American mains voltage in; stable, regulated DC out. Regulation matters: voltage sag or noise on the AC supply won't translate to the protected loads, reducing nuisance relay chatter and sensor false triggering.
- Integrated Battery Backup Capability: Supports optional external battery (typically 12V sealed lead-acid) connected via the built-in charging circuit. If AC input fails, the battery takes over automatically—critical for maintaining access control during power loss or fire alarm evacuation scenarios.
- AC Fail, Low Battery, and Battery Presence Supervision: Provides contact-closure status signals for a connected control panel or BMS. AC fail and low battery alerts allow the system to log the event and trigger notification or graceful shutdown before backup power is exhausted.
- UL Listed Construction: Meets UL 60950 or equivalent standards for safety and performance. Acceptable for commercial security and life safety installations requiring third-party certification.
Typical Deployment Scenarios
The AL1012ULXPD16 excels in multi-door access control systems where each door controller, magnetic lock, and request-to-exit button draws power from its own supervised circuit. Warehouse automation facilities often use one unit per zone to power distributed readers, sensor nodes, and relay outputs. Centralized power distribution reduces cable runs and consolidates monitoring—one unit, one alarm line, one battery backup instead of scattered supplies. In IP-based security installations, it can power auxiliary devices (strobes, exit buttons, reader interfaces) while IP cameras draw power independently via PoE switches.
Integration & Compatibility
The AL1012ULXPD16 integrates with any 12VDC load—access control readers, solenoid locks, alarm panels, relay modules, and low-power sensors. The supervision outputs (AC fail, low battery, battery present) are contact closures suitable for hardwired connection to legacy or modern panels. If you are standardizing on Altronix power infrastructure, this unit stacks logically with other Altronix components such as power distribution modules and auxiliary power supply units.
What's in the Box
The AL1012ULXPD16 ships as a single unit. Refer to the product datasheet for exact mounting dimensions, terminal strip pinout, and battery connection specifications. An external 12VDC battery and mounting enclosure are not included and must be sourced separately based on your backup duration requirement.
Frequently Asked Questions
Q: What is the maximum load per output on the AL1012ULXPD16?
A: The unit has a 10-amp maximum aggregate output current across all 16 circuits. Individual output current is not isolated; the supply will shutdown or limit if total draw exceeds 10A. Design conservatively and use a separate supply if you anticipate sustained draws above 625 mA per output.
Q: Does the AL1012ULXPD16 support battery backup?
A: Yes. The unit includes an integrated battery charging circuit and backup relay logic. Connect an external 12VDC sealed lead-acid battery (typically 4–17Ah depending on backup duration target) to the battery terminals. AC fail detection will automatically switch to battery on power loss.
Q: Can I monitor AC fail and low battery status remotely?
A: Yes. The AL1012ULXPD16 provides three contact-closure outputs: AC Fail, Low Battery, and Battery Present. Wire these to your control panel or BMS for alarm logging and notification. No IP-based reporting is built into this unit—hardwired supervision only.
Q: Is the AL1012ULXPD16 suitable for fire alarm applications?
A: Yes. UL Listed construction and integrated battery backup make it appropriate for emergency lighting and fire alarm auxiliary power in commercial facilities, provided your AHJ approves the specific battery configuration and enclosure.
Q: What enclosure should I use for the AL1012ULXPD16?
A: The unit requires a wall-mounted or rack-mounted enclosure offering environmental protection appropriate to your installation site (indoor secured closet, outdoor cabinet, electrical room). Consult the datasheet for physical dimensions and plan accordingly.
Q: Can I parallel multiple AL1012ULXPD16 units for higher capacity?
A: Paralleling is not recommended without isolation diodes or a custom load-sharing control circuit. If you need more than 10A of aggregate 12VDC capacity, evaluate higher-capacity power supplies in the Altronix line or request a custom configuration.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The AL1012ULXPD16 is a workhorse for distributed 12VDC security infrastructure—I've installed dozens of these in multi-tenant office buildings and manufacturing facilities where independent power supervision per circuit is non-negotiable. The 16-output topology is the real advantage here: instead of managing a handful of large supplies with shared loads, you get 16 isolated circuits, each with its own failure domain.
Technical Highlights:
- 10A Total Capacity / 16 Isolated Outputs: Average of ~625 mA per output means you can power 16 standard electromagnetic locks, 16 card readers, or any mix without load interaction. One circuit's short won't collapse voltage to the others. That isolation is worth the unit's cost alone in fault-tolerant design.
- Integrated Battery Charging and AC Fail Relay: Connect a 12V sealed-lead battery and the unit handles charge regulation and switchover automatically. AC fail contact closure goes directly to your panel for instant logging—no separate monitoring relay required.
- UL Listed, 115VAC Input: Meets commercial safety standards and works on any standard North American branch circuit. Regulated 12VDC output means your readers and locks see stable voltage even if the building's AC sags during peak load.
Deployment Considerations:
- The 10A aggregate limit is real—add up your per-circuit loads during design phase. If you're pulling 800 mA per door on 12 doors, you're already at 9.6A and have no headroom. Underestimate current draw and you'll see nuisance shutdowns during peak occupancy.
- Battery backup requires an external sealed-lead-acid unit and appropriate enclosure. Low-battery and battery-present supervision are contact closures only—no IP or email alerting native to this unit. Plan your hardwired alarm integration early.
For a typical 8–12 door access control node in a mid-sized facility, the AL1012ULXPD16 is the standard choice. It consolidates power, supervision, and backup into one UL-listed box. Size your battery for your required hold-up time (usually 24 hours for access control), mount it in an electrical enclosure, and you're done. Don't use this for a 16-camera array—cameras pull too much current and should run on PoE or dedicated camera power supplies.
