Altronix SMP10C24X 24VDC 10A Regulated Power Supply
The Altronix SMP10C24X is a regulated 24VDC power supply rated for 10A continuous output, designed to serve as the backbone power distribution unit in security system enclosures. This unit accepts wide-range AC input (12–28VAC) and delivers single-output 24VDC power to control systems, access equipment, camera arrays, and gate operators that require stable, regulated DC voltage in mission-critical installations.
Key Features
- 24VDC @ 10A output: Rated for 10A at 24VDC, allowing you to power multiple security devices from a single enclosure-mounted supply without stacking units or straining your control panel.
- Wide AC input range (12–28VAC): Tolerates voltage fluctuation from transformer secondaries or unregulated AC feeds, reducing the risk of supply failure during brownout or marginal power conditions common in remote or industrial sites.
- Selectable 12VDC or 24VDC output: Single unit covers both 12V and 24V loads via a simple configuration switch, eliminating the need to stock multiple supply variants for mixed-voltage deployments.
- Enclosure-mountable form factor: Designed to integrate directly into DIN-rail or chassis-mounted security cabinets, saving panel space and reducing external wiring clutter compared to standalone external supplies.
- Multi-amp capability at stepped voltages: Delivers 4A @ 6VDC, 6A @ 12VDC, or 10A @ 24VDC, so you can size the load based on your actual voltage requirement without overspending on unused capacity.
- Regulated output: Internally regulated design maintains stable voltage under load variation, critical for analog access control boards and camera power distribution that are sensitive to voltage sag.
- Lifetime Limited Warranty: Factory-backed warranty reduces lifecycle cost and provides recourse if the unit fails outside normal operational parameters.
Typical Applications
The SMP10C24X is commonly deployed in security system enclosures as the primary power backbone for multi-door access control systems, gate operators, surveillance camera power distribution, and UPS float-charge or backup battery charging circuits. It is well suited to outdoor and industrial environments where enclosure-mounted supplies eliminate external power infrastructure and reduce exposure points for surge damage or tampering.
Integration Considerations
The SMP10C24X requires a DIN-rail or panel-mount chassis and AC mains wiring to the input terminals. Output terminals support 24VDC load wiring; users should verify load current does not exceed 10A continuous and should include appropriate fusing or circuit protection on the output side per local electrical code. The single regulated output port means all downstream devices share a common return; systems requiring isolated supplies will need additional external regulation. Consult the power supply category page to compare regulated and switching alternatives for your voltage and current requirements.
Comparing Supply Options
If your installation requires higher current capacity, consider larger-frame Altronix regulated supplies in the same family. For installations needing lower current (under 4A) or 12VDC-only operation, step down to a smaller capacity unit if available. For applications demanding galvanic isolation between primary and secondary circuits, investigate switching supplies or transformer-isolated designs within the Altronix line.
Frequently Asked Questions
Q: Can the SMP10C24X charge a backup battery?
A: Yes. The regulated 24VDC output is suitable for float-charge or trickle-charging lead-acid or sealed batteries in UPS or backup power circuits. Verify the charging rate does not exceed the battery manufacturer's specifications, and include a blocking diode on the output if required by your battery management system.
Q: What happens if I exceed 10A output current?
A: Exceeding 10A will likely trigger internal current limiting or cause the output voltage to sag below regulation. Always calculate your total connected load current and ensure it remains below 10A continuous at 24VDC to avoid supply shutdown or device malfunction.
Q: Does the SMP10C24X require external fusing?
A: While the supply has internal protection, installing a fused disconnect on the AC input side and an appropriately rated fuse or circuit breaker on the DC output side is standard practice per electrical code and protects downstream wiring and loads in case of a fault.
Q: Can I run multiple SMP10C24X units in parallel for higher current?
A: Parallel operation is not recommended without additional load-sharing or current-limiting circuitry. Consult the manufacturer or an electrical engineer before attempting to parallel units; most regulated supplies are not current-matched for true parallel operation.
Q: What AC input voltage range should I plan for?
A: The 12–28VAC range covers most transformer secondaries and AC mains scenarios. However, if your AC source is significantly outside this range, verify compatibility before installation. Prolonged operation outside spec may void warranty or damage the supply.
Q: Is the SMP10C24X suitable for outdoor enclosures?
A: Yes, provided it is mounted inside an appropriate NEMA or IP-rated enclosure. The supply itself is designed for enclosure integration, but the external cabinet must provide UV, water, and temperature protection per your site conditions.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The Altronix SMP10C24X occupies a straightforward role in security system architecture: it's the regulated 24VDC backbone supply for control enclosures. The unit's 10A @ 24VDC output and wide 12–28VAC input acceptance make it a reliable choice for distributed access control, multi-camera power taps, and gate operators mounted in cabinets or outdoor NEMA boxes. Where the SMP10C24X distinguishes itself is its selectable 12VDC/24VDC output and multi-amp stepped rating, which means you don't need to over-purchase capacity for mixed-voltage loads.
Technical Highlights:
- Regulated 24VDC @ 10A maximum: Unlike switching supplies that can introduce noise, this linear-regulated design delivers clean, stable voltage essential for analog access control boards and camera power distribution. At 10A, you can run a single cabinet's worth of mid-range loads without external supply stacking.
- 12–28VAC input tolerance: This wide input window absorbs typical transformer secondary sag and brownout scenarios—common in remote gate houses or industrial sites with marginal power infrastructure. No need to over-specify your AC mains transformer to keep the supply in spec.
- Selectable output voltage: A single unit covers both 12VDC and 24VDC loads via a terminal jumper. This reduces inventory overhead in multi-site deployments and eliminates the confusion of stocking separate 12V and 24V models.
- Lifetime Limited Warranty: Factory backing reduces your lifecycle cost and provides a meaningful recourse path if the supply fails outside normal parameters—a tangible advantage over no-name switching supplies.
Deployment Considerations:
- The SMP10C24X is a single output supply; all loads share a common 24VDC rail and return. If you need galvanic isolation between circuits (e.g., separate AC mains conditioning for sensitive equipment), you'll need secondary isolated supplies or transformer-isolated modules downstream.
- 10A is your hard limit. Many integrators underestimate total load current when daisy-chaining door strikes, card readers, and backup charging; always sum your steady-state current draw before committing the supply to the installation. Overshooting 10A will trigger internal current limiting and voltage sag, shutting down lower-priority loads.
- Include fusing on both AC input and DC output per local electrical code. The supply has internal protection, but external fusing protects your wiring harness and complies with insurance and inspection requirements.
Choose the SMP10C24X when you're building a mid-scale access control or multi-camera backbone supply for a cabinet or outdoor enclosure, and your total load stays under 10A continuous. It's a no-frills, field-proven workhorse. If you need higher current capacity, step up to a larger Altronix supply; if you need isolation or redundancy, add secondary supplies or UPS modules downstream. For a single-door reader or camera drop, you'll over-spec this unit—consider a smaller supply instead.
