Altronix SAV182D 18-Output 12VDC CCTV Power Supply
The Altronix SAV182D is a distributed power supply purpose-built for multi-camera surveillance installations and access control systems. It delivers 12VDC across 18 isolated outputs, each capable of independent load management — meaning a short or failure on one output won't cascade across your entire camera array. With an 11A maximum capacity at 12VDC, the SAV182D supports mid-scale deployments ranging from 15 to 25 cameras depending on individual device current draw, making it a practical middle ground between compact single-output supplies and high-capacity enterprise-grade units.
Key Features
- 18 Isolated Outputs: Each output operates independently at 12VDC, so a camera failure or power surge on one branch doesn't disable others. Critical for uptime in multi-zone facilities.
- 11A Maximum Capacity: Total current headroom supports 15–25 cameras or sensor devices in typical mid-scale installations. Plan for peak draw, not nominal — many cameras spike on startup.
- Class 2 Safety Rating: Approved for safety-critical applications where code requires low-voltage isolation. Simplifies compliance in commercial and industrial environments.
- 115VAC Input: Standard North American mains power; no special power conditioning required. UPS backup is still recommended for 24/7 surveillance.
- BC300 Compact Enclosure: Fits standard electrical cabinets and rack-mounted installations without excessive footprint. Screw-terminal outputs allow direct wiring without breakout harnesses.
- Lifetime Limited Warranty: Manufacturer backing reduces long-term risk for integrators planning multi-year system lifecycles.
Integration & Deployment Context
The SAV182D works well in small-to-medium CCTV power supply scenarios: retail chains with 12–18 camera locations per site, warehouse perimeter feeds, or access control installations with multiple readers and gate operators. Pair it with a network NVR for centralized recording and analytics. For larger estates (50+ cameras) or sites requiring UPS integration, step up to a higher-amperage unit in the Altronix line or consider redundant supplies.
The Class 2 designation matters: building codes in many jurisdictions mandate low-voltage power isolation for certain threat-critical systems. Verify your local electrical code before finalizing the installation. If you're unsure whether 12VDC or 24VDC is correct for your camera set, consult your equipment manufacturer's power specifications — mixing voltage standards mid-install is a common (and costly) field mistake.
Typical Load Planning
An 11A @ 12VDC supply delivers 132 watts total. A single analog camera or low-power IP dome typically draws 300–600mA; a PTZ or heater-equipped turret can draw 1–2A. Sketch your camera list with datasheet power specs, sum the worst-case peaks (not averages), and verify headroom remains at 80% utilization — standard industry practice for power margin. If you're below 50% utilization, the SAV182D is sized right. If you're above 85%, the next tier up is justified.
Why This Model Matters
The 18-output configuration addresses a real gap: single- or dual-output supplies are too limiting for moderate deployments, while 24–32 output units often carry excess capacity and cost for smaller integrations. The SAV182D (model reference SAV182D) lands in the practical sweet spot, reducing wiring complexity and panel clutter while keeping unit cost reasonable. Its isolated outputs and Class 2 certification also lower your liability surface in commercial installs where building inspectors are involved.
When to Choose a Different Model
If your site exceeds 25 cameras or requires higher redundancy (dual-supply failover), look to higher-amperage models in the Altronix power supply family. If you need 24VDC instead of 12VDC, confirm compatibility with your camera specs before ordering — the wrong voltage will damage equipment. For very small installations (3–5 cameras), a single-output supply may be more cost-effective and easier to mount.
Frequently Asked Questions
Q: Is the SAV182D suitable for outdoor installations?
A: The SAV182D itself is not rated for outdoor mounting. Install it indoors in a weatherproof electrical enclosure or cabinet, and run hardened cable to outdoor cameras. This separation also simplifies service and reduces environmental stress on the supply.
Q: Can I use the SAV182D with 24VDC cameras?
A: No. The SAV182D outputs 12VDC only. Applying 12VDC to a 24VDC device will under-power it; applying a 24VDC supply to this unit's inputs will damage it. Verify all downstream loads are 12VDC-rated before commissioning.
Q: What is the warranty on the SAV182D?
A: Altronix offers a Lifetime Limited Warranty on the SAV182D. Coverage details (parts, labor, exclusions) are defined in the manufacturer's warranty terms — request the full policy from your distributor or Altronix support.
Q: How many cameras can the SAV182D actually power?
A: That depends on each camera's current draw. At 11A total capacity, you can support roughly 15–25 cameras with typical analog or low-power IP models (300–700mA each). Always check your specific camera datasheets and size for peak (startup) draw, not idle draw. Use a power calculator or spreadsheet to avoid undersizing.
Q: Does the SAV182D include a battery backup option?
A: No. The SAV182D is a line-powered supply. If 24/7 uptime is critical, add an external UPS between your mains and the supply's AC input to bridge short power interruptions.
Q: Can I daisy-chain multiple SAV182D units?
A: Not directly. Each unit has its own AC input and isolated DC outputs. For additional capacity, install separate units on separate AC circuits and label them clearly, or choose a higher-amperage single supply if your code and space allow.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The SAV182D is a workhorse in the middle tier of CCTV power infrastructure. Most integrators underestimate the value of isolated outputs — it's not glamorous, but a single shorted camera feed that takes down your entire surveillance backbone is a real pain in the field. The 18 isolated outputs on the SAV182D mean you can troubleshoot and replace a failed device without powering down 17 other feeds, and that operational margin alone justifies the platform for any multi-camera commercial or industrial site.
Technical Highlights:
- 11A @ 12VDC Capacity: Delivers 132 watts total — sufficient for 15–25 cameras at typical 5–8W draw per device. Peak load (camera startup) can spike 20–30% above nominal; always size with headroom to avoid nuisance breaker trips.
- 18 Isolated Outputs: Each output operates on its own circuit path, preventing one device failure or short from cascading. Critical for uptime-sensitive deployments in retail, warehousing, and access control where camera downtime triggers false alarms.
- Class 2 Safety Certification: Eliminates compliance friction with building inspectors and code reviewers. Many jurisdictions mandate Class 2 low-voltage isolation for threat-critical systems; this pre-qualifies the unit for those applications without additional certification overhead.
Deployment Considerations:
- Plan for surge and inrush current. Analog cameras with thermal-electric heaters or PTZ domes under load can momentarily draw 1.5–2.5A each. If you stack multiple high-draw cameras on a single supply, confirm your AC circuit and upstream breaker rating can sustain the peak surge without nuisance trips. A 15A mains circuit is the bare minimum; 20A is safer.
- The BC300 enclosure form factor assumes cabinet or wall mounting indoors only. If your site lacks a secure electrical enclosure, you'll need to supply one separately. Outdoor installations require a NEMA 4X or equivalent weatherproof cabinet, which adds cost and complexity.
- No integral UPS or battery backup — if mains power blinks, all outputs go dark. For critical access control or alarm-connected cameras, provision a small UPS (500–1000VA) on the AC input side. This bridges most mains dips without full-system loss.
The SAV182D (model reference SAV182D) is best suited to mid-scale commercial and industrial camera installations where distributed power and isolation matter more than ultra-high capacity. Retail chains with multi-location deployments, warehouses with perimeter and dock feeds, and access control systems with multiple readers all benefit from its balanced power budget and fault-tolerant architecture. If your site is smaller (under 10 cameras), a simpler single- or dual-output supply is more cost-effective. If you're scaling beyond 30 cameras, look to higher-amperage units to avoid supply stacking and panel clutter.
