Lifesafety Power FPO250/250-2D8E2 250W Board Power Supply
Overview
The Lifesafety Power FPO250/250-2D8E2 is a 250W industrial board-level power supply engineered for distributed 12VDC and 24VDC systems in access control, video surveillance, and alarm infrastructure. This model delivers selectable primary output (20A at 12VDC or 10A at 24VDC) plus 16 independent auxiliary DC outputs — each protected by its own 3A fuse — all housed in a compact 18.5W × 20H × 4.5D-inch enclosure. The board-format design supports direct rackmounting or panel integration, making it a foundation component for multi-load security deployments where redundancy and compartmentalized circuit protection matter.
Key Features
- Dual Primary Output Voltage: Select 20A @ 12VDC or 10A @ 24VDC depending on downstream equipment requirements. 24VDC is often favored in longer wire runs or noise-sensitive analog circuits because the higher voltage reduces I²R losses over distance — critical when devices sit more than 100 feet from the supply.
- 16 Individually Fused Auxiliary Outputs: Each rated 3A and independently fused, meaning a single shorted load won't cascade and disable the entire system. This compartmentalization is essential in warehouse automation or access control where dozens of readers, relays, and locks depend on the same supply.
- Compact Board Form Factor: At 4.5 inches deep, the FPO250/250-2D8E2 fits within standard panel cavity depths and integrates directly into rackmount or wall-mounted enclosures without requiring a separate chassis — reducing footprint and wiring complexity on larger jobs.
- 250W Total Power Budget: Adequate for mixed loads: up to 16 mag locks, 8–12 IP cameras pulling auxiliary power, multiple input modules, and relay circuits on a single supply. Verify exact current draw per load during design phase.
- Industrial Voltage Stability: Board-level regulation holds output voltage within acceptable tolerance across normal line and load conditions, minimizing nuisance faults on sensitive electronics like biometric readers or low-voltage switching modules.
- Fused Circuit Protection: Each auxiliary output carries its own 3A fuse; the primary output is also protected. This design prevents one failing load from affecting others — a reliability feature that simplifies troubleshooting in multi-tenant or modular deployments.
Integration and Deployment Considerations
The FPO250/250-2D8E2 integrates directly into industrial power distribution boards and access control cabinets. Its board-level interface supports both screw-terminal and printed-circuit connections, depending on your installation methodology. When planning a distributed access control system, size the primary output for your largest single load (typically a power supply for a controller or expansion module) and use the auxiliary outputs for door readers, request-to-exit buttons, and relay coils. Wire sizing is critical: 12VDC current draws are roughly double the 24VDC equivalent at the same wattage, so use heavier gauge wire if you select 12V. Always verify input AC voltage stability and total system current budget before commissioning; undersized upstream AC supplies or loose breaker connections can degrade performance across all 16 auxiliary channels.
What's in the Box
Exact package contents are not documented in available manufacturer materials. Contact the supplier or manufacturer directly for a complete parts list and any included wiring harnesses, fuse types, or terminal blocks.
Frequently Asked Questions
Q: Can I use the FPO250/250-2D8E2 in a 24-hour monitored access control system?
A: Yes — the unit is rated for continuous duty in commercial environments. However, this power supply does not include integrated battery backup. If you require uninterruptible power during AC failures, you will need to provision a separate UPS or battery backup module upstream of the FPO250/250-2D8E2.
Q: What happens if one of the 16 auxiliary outputs overloads?
A: The 3A fuse protecting that output will open, isolating the fault and protecting the remaining 15 channels and the primary output. Replace the fuse once the load is corrected or disconnected.
Q: Can I run both 12VDC and 24VDC outputs simultaneously?
A: No. The primary output is selectable — you choose either 12V or 24V at installation time. All auxiliary outputs follow the same voltage as the primary. If your system requires both 12V and 24V, provision two separate power supplies.
Q: What input AC voltage does the FPO250/250-2D8E2 require?
A: Manufacturer documentation does not explicitly state the input AC voltage range. Contact the supplier for AC input specifications and ensure your facility AC is within spec before wiring.
Q: Is the FPO250/250-2D8E2 suitable for outdoor or damp environments?
A: As a board-level supply, it is designed for indoor, climate-controlled cabinet or rack mounting. Outdoor or wet-location mounting requires an external weatherproof enclosure and is beyond the unit's standard design envelope.
The Lifesafety Power FPO250/250-2D8E2 is a workhorse board supply for integrators building mid-scale access control and surveillance infrastructures. The real value is the 16 independently fused auxiliary outputs — each rated 3A and protected separately. That architecture means a shorted mag lock reader or a relay failure on one circuit doesn't kill the entire system; you isolate it, replace the fuse, and move on.
Technical Highlights:
- 250W capacity with dual voltage output: 20A @ 12V or 10A @ 24V. Select 24V if your wire runs exceed 100 feet — the higher voltage drops I²R loss significantly, reducing voltage sag to relays and readers at the far end of the bus.
- 16 fused auxiliary channels @ 3A each: Compartmentalized protection is the selling point. If you're wiring 12 door readers, 4 request-to-exit buttons, and a relay module, each load sits on its own circuit breaker. A stuck relay won't drag down the readers.
- Compact enclosure (4.5-inch depth): Fits standard wall and rackmount cavities without modification. Simplifies panel design and reduces installation time on jobs where space is tight.
Deployment Considerations:
- This board has no integrated battery backup or supercap hold-up — an AC blink will drop all outputs immediately. If you need ride-through power, provision a UPS or separate battery backup board upstream.
- Do the math on 12V vs. 24V at design time. If your site plan shows runs over 100 feet from supply to load, use 24V and run smaller wire gauge. 12V on long runs burns unnecessary power and invites nuisance faults in biometric readers and relay circuits.
- Verify input AC voltage spec with the manufacturer — documentation supplied does not state the AC input range. Confirm your facility AC is within tolerance before installation.
Position the FPO250/250-2D8E2 as the core power distribution for access control cabinets serving 50–150 card readers across a single floor or zone. Its fused architecture and dual-voltage flexibility make it a reliable choice where load isolation and serviceability outweigh the need for integrated battery backup.
