Altronix AL1024ULACMCBJ Power Supply Charger with Accessory Power Control
Overview
The Altronix AL1024ULACMCBJ is a box-form AC/DC power supply designed for distributed power management in security and access control installations. It accepts standard 115VAC mains input and delivers selectable 12VDC or 24VDC output with eight independently controlled PTC Class 2 relay outputs — each capable of switching auxiliary loads like door strikes, magnetic locks, or auxiliary sensors. UL Listed for safety-critical deployments, the AL1024ULACMCBJ supports configurable current delivery across its outputs, making it suitable for control enclosures where modular power distribution and load isolation are required.
Key Features
- Selectable dual-voltage output (12VDC or 24VDC): Choose the voltage that matches your field equipment at setup time — eliminates the need to stock two different PSU models across multiple installations.
- 8 PTC Class 2 relay outputs: Each relay independently controls one accessory load — ideal for sequencing door strikes, monitoring circuits, or managing solenoid valves without external relay banks.
- Configurable current capacity: Supports up to 4A @ 12VDC, 3A @ 24VDC, or 10A @ 12VDC depending on configuration — you scale output current to match your load mix without over-provisioning.
- 115VAC mains input: Works directly off standard North American AC power — no step-down transformer or external adapter required.
- PTC (Positive Temperature Coefficient) protected relays: Automatic overload protection on each relay output prevents cascading failures if a single load shorts — that's a real reliability win in unattended cabinet installations.
- UL Listed: Safety certification for fire-alarm, life-safety, and secure access control applications where listing is a regulatory requirement.
- Box form factor: Mounts directly into standard 19-inch relay racks or control enclosures — fits alongside other DIN-rail or panel-mount gear without special adapters.
- Lifetime Limited Warranty: Altronix backs this unit for the life of the product — minimizes replacement logistics on long-deployed systems.
Integration & Compatibility
The AL1024ULACMCBJ integrates into access control panels, door controller assemblies, and security system power distribution architectures where auxiliary loads require individual relay switching. The selectable output voltage means you can pair the same unit with either 12VDC or 24VDC field devices — common in mixed-brand deployments where standardizing on a single PSU reduces inventory. The eight relay outputs are suitable for typical access control scenarios: driving electromagnetic door locks, controlling strobe lights, managing sensor circuits, or sequencing entry-point devices. If your installation requires more than eight independently switched loads, consider cascading multiple units or upgrading to a larger Altronix power and relay control platform.
When to Choose a Different Model
If your deployment requires more than 8 relay outputs, look to larger Altronix power distribution modules or multi-output relay control boards in their catalog. If you need redundant or backup power, consider a model with built-in battery backup capability. For field devices requiring higher current (above 10A @ 12VDC continuous), you may need a dedicated higher-capacity power supply paired with separate industrial relay modules.
Frequently Asked Questions
Q: Can I use the AL1024ULACMCBJ with both 12VDC and 24VDC devices in the same installation?
A: No — the output voltage (12VDC or 24VDC) is selectable at setup time, not switchable per relay. You configure it once for your entire load mix. If you need mixed voltages, deploy two separate units or use a multi-output power supply.
Q: What is the maximum current I can draw per relay output?
A: Each PTC relay is individually protected, but total system current depends on your configuration: up to 4A @ 12VDC, 3A @ 24VDC, or 10A @ 12VDC. Check the datasheet for the specific load curve matching your voltage selection.
Q: Is the AL1024ULACMCBJ suitable for outdoor installations?
A: No — this is a box-form enclosure for indoor mounting in control cabinets or equipment rooms. For outdoor access control or remote installations, use a NEMA-rated enclosure with optional weatherproof cover, or select an outdoor-rated power distribution unit.
Q: Does the AL1024ULACMCBJ include a backup battery or UPS function?
A: No — this is a mains-powered supply only. If you need emergency or hold-up power for door strikes during a power outage, add an external battery backup module or specify a power supply with integrated battery charging.
Q: Is the AL1024ULACMCBJ UL Listed?
A: Yes — UL Listed for safety-critical installations. This is mandatory for many fire-alarm, life-safety, and secure access control projects. Confirm listing requirements with your local Authority Having Jurisdiction (AHJ).
Q: What is the warranty on the AL1024ULACMCBJ?
A: Lifetime Limited Warranty — covers defects in materials and workmanship for the operational life of the product.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The AL1024ULACMCBJ fills a specific role in access control power distribution: it lets you eliminate an external relay bank by building relay switching directly into the power supply. Eight PTC-protected outputs mean you're not sacrificing load isolation or overload safety — each relay is independent, so a fault on one door strike won't cascade into the next. That's the kind of engineering detail that saves troubleshooting time in a real deployment.
Technical Highlights:
- 8 individually protected PTC relays: Each relay switches independently, so you can sequence multiple auxiliary loads without external relay modules or common-bus faults. A short on relay 3 won't kill relays 1, 2, 4–8.
- Selectable 12VDC or 24VDC output: Configurable at setup, supporting 4A @ 12VDC, 3A @ 24VDC, or 10A @ 12VDC — you pick the voltage and current curve that matches your field equipment mix, then lock it in. No jumpers to re-solder during service calls.
- UL Listed for life-safety and secure access: Meets the listing requirements for fire-alarm panels, life-safety systems, and regulated access control — a non-negotiable checkbox for many jurisdictions and integrator contracts.
Deployment Considerations:
- Voltage selection is one-time only at installation — confirm your load mix supports either 12VDC or 24VDC before wiring. Changing voltage mid-deployment requires reconfiguration and potentially field rewiring.
- The total current budget is shared across all eight relays. If you're drawing 3A @ 24VDC, you're at capacity — adding a ninth load requires a second unit or a move to a higher-capacity platform.
- This is mains-powered (115VAC input) with no battery backup. In a commercial access control install where door strikes must remain powered during a fire-alarm evacuation, add a separate battery backup module or UPS conditioned to this supply.
The AL1024ULACMCBJ is the right call for mid-scale access control retrofits and new builds where you need distributed relay switching in a compact form — cabinet mount, UL Listed, and redundancy-ready. Oversizing to a multi-output platform wastes capacity and budget; going cheaper with external relays trades reliability for upfront cost.
