Altronix PD8ULCB 8-Output Power Distribution Board
The Altronix PD8ULCB is a UL-recognized power distribution module engineered for multi-output DC and AC applications in security and access control systems. This board-form factor unit consolidates eight independent 28VAC/VDC outputs into a single compact assembly, reducing installation wiring complexity and improving system reliability when powering arrays of electric locks, card readers, sensors, and auxiliary control devices from a centralized power source.
Key Features
- Eight Independent 28VAC/VDC Outputs: Each output can be individually controlled and isolated, allowing you to segment power feeds across different security zones or building areas without needing separate distribution panels — saves floor space and consolidates wiring harnesses.
- Dual Voltage Compatibility: Supports both 28VAC and 28VDC operation on the same board, eliminating the need to stock separate AC and DC distribution modules. Pair AC-powered readers with DC locks on the same unit without redesign.
- UL-Recognized Design: Certified for security infrastructure deployments in North America, meeting code requirements for professional installations. Critical for systems subject to permit or inspection.
- Board Form Factor: Designed for integration into custom enclosures, standard 19-inch power distribution panels, or OEM equipment racks. Reduces footprint compared to standalone distribution units and simplifies mounting in tight equipment rooms.
- Compact Architecture: Minimizes installation footprint, making it ideal for retrofit projects where panel space is constrained or for new deployments requiring dense integration across multiple security subsystems.
- Lifetime Limited Warranty: Covers manufacturing defects over the product lifetime, providing long-term investment protection and reducing replacement risk on infrastructure that typically serves 10+ year deployment cycles.
Integration & Compatibility
The PD8ULCB integrates directly into access control architectures, surveillance infrastructure, and integrated security panels where centralized power management feeds multiple independent circuits. It pairs well with power distribution and backup power systems that require modular output isolation. When building multi-door access control networks, the eight outputs eliminate the need to daisy-chain separate boards or wire individual lock power supplies across the building.
As a board-level component, the PD8ULCB is suitable for systems integrators designing custom security enclosures or engineers consolidating power feeds in retrofit installations. The dual voltage support makes it particularly effective in mixed-device environments where some readers or sensors operate on AC and others on DC — a common scenario in large commercial facilities transitioning between system generations.
Typical Applications
- Access control systems requiring distributed power to multiple electric strikes, magnetic locks, and door position sensors
- Card reader networks across multi-door deployments in office buildings, hotels, or data centers
- Surveillance infrastructure providing independent circuit feeds to cameras and auxiliary equipment without overloading a single power branch
- Integrated security panels consolidating power distribution for sensors, alarms, and control modules in a single equipment room
- Building automation integration where centralized power management feeds physical security, HVAC sensors, and lighting control from one distribution point
Frequently Asked Questions
Q: Can the PD8ULCB power both AC and DC devices simultaneously?
A: Yes. The PD8ULCB supports both 28VAC and 28VDC operation on the same board, allowing you to configure individual outputs for AC or DC devices. Each output is independently selectable.
Q: What is the per-output current rating on the PD8ULCB?
A: Refer to the manufacturer datasheet for per-output current specifications. Current capacity determines how many locks, readers, or sensors can be powered on each output without exceeding safe load limits.
Q: Is the PD8ULCB suitable for retrofit installations in existing security panels?
A: Yes. The board form factor is designed for integration into custom enclosures and standard power distribution panels, making it suitable for retrofit projects where space or modularity is a constraint.
Q: Does the PD8ULCB include built-in surge protection or fusing?
A: Refer to the manufacturer datasheet for circuit protection details. Most power distribution boards include individual fusing or resettable protection per output to isolate faults and prevent cascade failures across the system.
Q: What is the warranty coverage on the PD8ULCB?
A: The PD8ULCB includes a Lifetime Limited Warranty covering manufacturing defects and material failures, providing long-term protection for security infrastructure deployments.
Q: Can I use the PD8ULCB in outdoor or harsh-environment installations?
A: The PD8ULCB is a board-level component intended for mounting inside enclosures or panels. Refer to the datasheet for environmental operating ranges. Outdoor use requires proper enclosure selection and environmental sealing.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The Altronix PD8ULCB is a workhorse consolidation play for any system where you're managing eight or more independent low-voltage security circuits. If you're building out a multi-story access control network or retrofitting a facility where lock power, reader power, and sensor power currently run on separate distribution points, the PD8ULCB centralizes that into one board-mounted assembly.
Technical Highlights:
- Eight Independent Outputs at 28VAC/VDC: Each output is individually isolated, so a fault on one circuit (e.g., a short in one lock strike) won't cascade to the others. This isolation is critical for availability — you lose one door, not eight.
- Dual Voltage Support: The real benefit here is flexibility. In a typical retrofit, you inherit a mix of AC readers (older installations) and DC locks (newer). Rather than deploying two separate boards, you configure outputs on a single PD8ULCB for both. One board, half the wiring, smaller footprint.
- UL Recognition: Non-negotiable for code compliance. If your jurisdiction requires third-party certification on power distribution in security systems, the UL mark satisfies that gate. Without it, you'll face inspectors pushing back on custom solutions.
Deployment Considerations:
- Board form factor means you have to mount it — it's not a standalone enclosure. Pair it with a compatible power distribution panel or build a custom enclosure around it. Plan for that in your BOM.
- Per-output current capacity isn't stated in available spec summaries. Before sizing loads, pull the full datasheet and verify that each output can handle your intended load (e.g., how many locks per output). Exceeding per-output limits without proper fusing is a common integration mistake.
- Eight outputs sounds like a lot, but on a 10-door facility, two outputs per door (strike + position sensor) consume the board quickly. Plan ahead if you anticipate growth or auxiliary circuits.
The PD8ULCB is the right choice for integrators who need to consolidate power distribution in access control retrofits or new builds where space and modularity matter. It's not glamorous — it's infrastructure — but that's exactly when you want something UL-certified and compact.
