Altronix ALTV2416ULX 16-Output 24/28VAC Power Supply
The ALTV2416ULX is a wall-mounted AC power supply engineered to distribute 24/28VAC to access control readers, door locks, PTZ camera motors, and auxiliary security devices across 16 independently fused circuits. Operating from standard 115VAC input with a 7A maximum current capacity, this unit consolidates power distribution for small-to-medium security installations without requiring central DC conversion or additional transformers. Individual fusing on each output means a fault on one circuit won't cascade to the rest of your system—a practical safety measure when you're powering critical readers or strike plates in parallel.
Key Features
- 16 individually fused outputs: Each circuit is independently protected, so a short or overload on one output won't trip the entire supply. This is essential in access control where one failed reader shouldn't take down readers on adjacent circuits. Fuses are field-replaceable.
- 24/28VAC selectable output voltage: Matches the native voltage rating of most commercial access control devices (readers, strikes, mag locks) and auxiliary equipment. No intermediate step-down required—what you specify is what you get at the terminals.
- 7A maximum current capacity: Sufficient to power multiple readers and solenoid devices simultaneously. At 24VAC, this delivers up to 168 watts total; at 28VAC, slightly higher. Size your branch circuits accordingly—do not assume all 16 outputs can draw full rated current simultaneously from the 7A main input; diversity matters.
- 115VAC input compatibility: Connects to standard single-phase mains without special wiring. No three-phase requirement or exotic power conditioning needed.
- UL Listed and CE approved: Meets North American and European electrical safety standards. Required for code-compliant installation in most jurisdictions. Verify with your AHJ before specifying.
- Wall-mount form factor: Space-efficient installation in closets, electrical rooms, or security cabinets. Smaller footprint than rack-mount alternatives, but less suitable for large multi-zone deployments requiring dozens of outputs.
Typical Applications
- Access control power distribution: Powers multiple readers, request-to-exit buttons, and relay outputs across a single entrance or security zone. Individual circuit fusing protects against reader short-circuits.
- PTZ camera motor power: Supplies dedicated 24VAC to pan-tilt-zoom camera motors while keeping camera PoE on a separate circuit. Prevents motor current surges from affecting video stream stability.
- Door lock and strike plate circuits: Common deployment in small office or warehouse access points where mag locks and strike solenoids require direct AC rather than DC conversion.
- Alarm system auxiliary devices: Supports siren modules, relay boards, and other 24VAC-rated sensors and control devices in integrated security systems.
Integration and Compatibility
The ALTV2416ULX outputs standard 24/28VAC with no proprietary signaling or data layer—it is purely a power distribution device. Compatible with any 24VAC-rated access control reader, door strike, PTZ motor, or auxiliary device. Does not interface with software, VMS platforms, or networked controllers. Use relay outputs from your access control system or separate 24VAC-rated control logic to manage load switching if time-based or alarm-triggered power cycling is required.
Sizing Considerations
Verify total connected load does not exceed 7A at 115VAC input. For example, if powering six dual-reader access control panels (typical ~0.5A each) plus a PTZ motor (typical ~1.5A), you are within budget. However, do not assume the ALTV2416ULX can support 16 devices each drawing 0.5A continuously from the same AC mains circuit—diversity and peak-load analysis are essential. In warehouse automation or multi-zone access deployments, consider multiple ALTV2416ULX units on separate mains circuits or upgrade to a higher-capacity Altronix power supply family member if centralized power is a constraint.
Reliability and Warranty
Backed by Altronix's Lifetime Limited Warranty, covering defects in materials and workmanship. Normal wear, user-caused damage, and component replacement are excluded. Lifetime limited is standard across the Altronix power supply line and reflects the brand's conservative engineering philosophy—transformer-based AC supplies are inherently simpler and longer-lived than switch-mode designs in stable environments.
Frequently Asked Questions
Q: Can I use the ALTV2416ULX to power 16 devices simultaneously at full load?
A: No. The ALTV2416ULX's 7A maximum input current at 115VAC is the system constraint. Individual fuses protect each output, but the total power available is limited by the AC mains supply. Typical deployments use 6–10 outputs, depending on device current draw and duty cycle. Verify total load before installation.
Q: Is the ALTV2416ULX suitable for outdoor mounting?
A: No. This is a wall-mount AC power supply designed for indoor electrical rooms, closets, or security cabinets. It is not rated for rain, freezing temperatures, or direct sunlight. For outdoor deployments, use an Altronix outdoor-rated power supply in a NEMA 4X or IP66-rated enclosure.
Q: What happens if one output fuse blows?
A: That output immediately loses power, but all other 15 circuits remain active. Replace the blown fuse with the correct amperage (typically 1.5A–2A per circuit, depending on load). The fuse type and holder design are shown in the product datasheet.
Q: Does the ALTV2416ULX include remote power monitoring or status reporting?
A: No. This is a passive AC transformer with fused distribution. It has no network interface, status lights, or alarm relay outputs. For monitored power, consider an Altronix NetWay power supply with SNMP or Modbus connectivity.
Q: Can I select 24VAC and 28VAC outputs on different circuits?
A: No. The ALTV2416ULX has a single selectable output voltage—you set it to either 24VAC or 28VAC at installation, and all 16 outputs use that same voltage. Verify your device voltage requirements before selecting the supply voltage.
Q: Is the ALTV2416ULX NDAA Section 889 compliant?
A: Not stated in product documentation. For federal compliance verification, contact the manufacturer or an specialty distributor.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The ALTV2416ULX is a straightforward transformer-based AC power supply—no switching electronics, no regulated DC output—which means it is inherently fault-tolerant and long-lived. The 16 individually fused outputs are the real design strength here: each circuit is protected at the source, so a short in an access control reader or door strike doesn't cascade into a total system shutdown. That isolation is worth the extra cable runs and fuse management in small-to-medium deployments.
Technical Highlights:
- 7A maximum input current at 115VAC: Translates to roughly 168 watts at 24VAC (or slightly higher at 28VAC). This is tight if you're planning to fully load all 16 outputs; real-world access control and door lock circuits typically draw 0.3–1.5A each, so you will likely max out at 8–10 active circuits before hitting the mains limit. Know your device ratings before you deploy.
- Individual fusing per output: Prevents a single fault from affecting the other 15 circuits. Fuses are field-replaceable and standardized—no special ordering. The trade-off is that you need to stock spares and know which fuse rating applies to each circuit.
- Selectable 24/28VAC output: A single voltage setting across all 16 outputs. Most access control devices are rated for either 24VAC or 28VAC; verify your entire connected load uses the same voltage before you turn this on. Mixing voltage classes on a single supply is not supported and risks equipment damage.
Deployment Considerations:
- This is a passive power supply with no remote monitoring, status reporting, or alarm outputs. If you need to know whether the supply is online or if a fuse has blown, you will need external monitoring (e.g., a relay contact closure from your access control panel when power is lost, wired to a separate alarm circuit).
- The wall-mount form factor is space-efficient in a small electrical closet, but it is not suitable for rack installations or large multi-zone deployments. If you are powering more than 16 circuits, either deploy multiple ALTV2416ULX units on separate mains feeds or specify a larger Altronix power supply model.
- Watch the total load diversity: do not assume you can draw 7A continuously from the mains just because the supply is rated for it. Peak demand during alarm conditions (multiple solenoids firing) or maintenance (all readers powered simultaneously) can exceed safe breaker limits if not sized carefully.
The ALTV2416ULX is the right choice for warehouse access points, small office security zones, or auxiliary power for PTZ camera motors where individual circuit protection and AC-native operation matter more than remote monitoring. Skip this if you need intelligent power management, outdoor rating, or integration with a larger networked power infrastructure—that is what Altronix NetWay or higher-end modular supplies handle.
