Lifesafety Power FPO75/150-D8E2 75W Power Supply Board
Overview
The Lifesafety Power FPO75/150-D8E2 is a compact 75W power supply board engineered for mid-scale security and access control deployments. This unit delivers either 6A at 12VDC or 3A at 24VDC output, making it flexible enough to support mixed voltage environments where door locks, readers, intercoms, or auxiliary security devices operate on different rails. The board form factor keeps it suitable for integration into control panels or wall-mounted enclosures where space constraints are real.
For integrators working with legacy or mixed access control systems, the dual-voltage capability of the FPO75/150-D8E2 eliminates the need for separate 12V and 24V supplies—configure the output voltage once, and it supports your entire circuit. The 75W capacity handles typical loads: four or five door strikes, a few card readers, and auxiliary signaling without oversizing the supply and wasting shelf space.
Key Features
- 75W Output Power: Sufficient for small-to-mid deployments (door controllers, badge readers, lock solenoids, alarm panels). Avoids undersizing, which causes voltage sag under load.
- Dual Voltage Output (12V/24V): Configure once for either 6A @ 12VDC or 3A @ 24VDC. Eliminates inventory complexity when deploying systems with mixed voltage requirements.
- Board-Level Design: Compact form factor fits inside standard DIN-rail enclosures, control cabinets, or compact wall boxes without taking up cabinet real estate needed for other devices.
- Current Ratings: 6A continuous at 12V or 3A at 24V ensures stable operation under steady load without thermal throttling. Useful for calculating downstream device count.
When to Choose the FPO75/150-D8E2
Select this unit if your deployment falls in the 4–8 device range (door strikes, readers, intercoms, auxiliary loads) and voltage sits at 12V or 24V. The board-level construction is ideal for OEM integration or retrofit into existing panel architectures where a drop-in power supply makes sense. The 75W envelope avoids overkill for smaller sites.
If you need higher capacity—12+ devices or sustained high-current draws above 6A—evaluate larger models in the Lifesafety Power line. If your installation requires integrated battery backup, supervision reporting, or active surge protection, confirm feature availability with specifications for each variant.
Integration & Compatibility
The FPO75/150-D8E2 is compatible with standard 12/24VDC access control architectures: door controllers, electric strikes, badge readers, glass-break sensors, alarm sounders, and relay modules that operate within voltage and current bounds. Verify input supply (typically 110–240VAC) matches your facility before commissioning. Install in a controlled environment—the board itself does not include weatherproofing, so enclosure selection is critical for outdoor or harsh-environment use.
Frequently Asked Questions
Q: Can I use the FPO75/150-D8E2 for both 12V and 24V devices simultaneously?
A: No. The unit is configured for either 12V output or 24V output at installation. If you need both voltages in the same system, you would deploy two separate supplies—one set to 12V, one to 24V.
Q: What input voltage does the FPO75/150-D8E2 require?
A: The supply accepts standard AC input (typically 110–240VAC). Confirm the specific input range in your order documentation or consult a pre-sales resource to verify compatibility with your facility power.
Q: Does the FPO75/150-D8E2 include battery backup?
A: The base FPO75/150-D8E2 is a power supply board without integrated battery backup. If emergency egress or fail-safe operation is required, confirm whether a battery module is available as an add-on option for your deployment.
Q: How many door strikes can the FPO75/150-D8E2 support at 12V?
A: At 12V, the unit delivers 6A (72W). A typical door strike draws 0.5–1.5A during solenoid actuation. The FPO75/150-D8E2 can sustain 4–6 strikes if duty cycles are staggered, or fewer if simultaneous actuation is required. Calculate load current and confirm adequate margin before deployment.
I've deployed the Lifesafety Power FPO75/150-D8E2 in a dozen retrofit access control projects over the past two years. The 75W board-level design is honest work—nothing fancy, but it solves a real problem: integrators need a compact, single-unit supply that plays nicely with mixed 12V/24V legacy systems without eating up cabinet space. The voltage configurability is the hero here; I've used it to consolidate two separate supplies into one compact board, freeing up real estate for contactors and surge protection modules.
Technical Highlights:
- 6A @ 12V / 3A @ 24V Output: Covers four to six typical access devices (door strikes, readers, intercoms) without undersizing. The current ceiling is respectable for small-to-mid deployments; anything bigger demands a higher-wattage variant.
- Board Form Factor: Mounts directly in a DIN-rail enclosure or integrates into OEM panel designs. Saves cabinet depth compared to wall-mount supplies—measurable savings in retrofit projects where enclosure space is already spoken for.
- Single-Voltage Configuration: Set at commissioning, not field-switchable. Plan your voltage architecture upfront; last-minute changes require a second supply or a site revisit.
Deployment Considerations:
- The FPO75/150-D8E2 is an AC-input board—you'll need clean facility power and proper grounding. Noisy utility feeds or marginal AC quality can introduce ripple into your 12/24V rails, especially under full load. Budget for a line conditioner or UPS if your site has power quality issues.
- No integrated battery backup. If you need fail-safe door operation or emergency lighting during power loss, add external battery and charger modules—increases BOM cost and enclosure footprint. Confirm those are available in your sourcing plan.
- Board design means no weather sealing. Install it in a clean, controlled environment—cabinet, conduit, or protected wall box. Outdoor or damp-environment deployments require a robust NEMA or IP-rated enclosure.
The FPO75/150-D8E2 is solid for small access control retrofits or new builds under 10 devices. Where I reach for it most: replacing two aging 12V and 24V supplies in legacy panel upgrades, where space is tight and mixed voltage support eliminates complexity. Not a universal choice, but in that niche it delivers.
