Lifesafety Power FPO150-2D8E4 150W Dual-Output Power Supply
The Lifesafety Power FPO150-2D8E4 is a 150W regulated power supply purpose-built for access control and door hardware installations that require simultaneous 12V and 24V rails. Mixed-voltage deployments — where legacy card readers operate at 12V while solenoid locks and magnetic strikes demand 24V — are routine in commercial buildings. Rather than field multiple single-output supplies, the FPO150-2D8E4 consolidates both voltage rails in a compact E4 enclosure, reducing panel density and eliminating cross-supply wiring complexity. The 16 independently fused 3A auxiliary DC outputs support zone-level distribution with per-output Bus1/Bus2 selectable routing, enabling flexible load allocation without field rewiring.
Key Features
- Dual Selectable Output: 12A at 12V or 6A at 24V — choose configuration at installation. Eliminates the need for two separate power supplies in mixed-voltage access control systems.
- 16 Auxiliary DC Outputs: Each fused at 3A independently. Supports distributed loads across card readers, relay modules, and solenoid coils without daisy-chaining from a single output.
- Per-Output Bus Routing: Each of the 16 DC outputs is selectable for Bus1 or Bus2 assignment. Allows flexible load balancing and zone isolation without panel rewiring.
- Compact E4 Enclosure: 24H × 20W × 4.5D inches. Fits standard DIN-rail or panel-mount installations, reducing footprint versus dual single-output supplies.
- Fused Protection: 3A per auxiliary output prevents downstream component damage from short circuits or overcurrent in individual branches.
- 16V DC Internal Rail: Regulated intermediate bus feeds the selectable output stage, ensuring voltage stability across the full load range.
- Lifesafety Panel Integration: Designed for Lifesafety Power access control panel ecosystems supporting Bus1/Bus2 topology and FPO-series supplies.
Dual-output consolidation directly impacts total cost of ownership in access control retrofits. A typical 32-door access control system mixing 12V readers and 24V locks would otherwise require two 75W single-output supplies plus additional panel real estate, interconnect wiring, and separate circuit protection. The FPO150-2D8E4 unifies these into one enclosure, reducing parts inventory and simplifying troubleshooting when a single output rails or an auxiliary fuse blows.
Load planning requires per-output discipline: each of the 16 auxiliary DC fuses is rated 3A, meaning solenoid coils, relay coils, and LED indicators on any one output cannot collectively exceed 3A. Door strikes typically draw 1.5–2.5A during energization; card readers draw 0.2–0.5A. A single output can safely support one strike plus two or three readers, but not two strikes. Exceeding the per-output 3A limit will trip the fuse, cutting power to all equipment on that output. Use the auxiliary outputs for distributed loads; reserve the main 12A or 6A rail for high-current equipment like multi-coil relay banks if your panel topology allows it.
Integration with your access control panel is mandatory before ordering. Lifesafety Power supplies are not universal; the FPO150-2D8E4 is specifically designed for Lifesafety access control panels that recognize the FPO-series firmware signature and support Bus1/Bus2 selectable routing. Confirm your panel model number with the manufacturer or integrator documentation — not all Lifesafety panel generations accept this supply. If you're retrofitting into a third-party access control system or non-Lifesafety panel, this supply will not integrate and will not be returnable. Voltage configuration (12V or 24V) is set at installation via a hardware selector and cannot be changed per output or field-reconfigured — you commit to one voltage choice for the entire supply.
Lifesafety Power supplies carry standard manufacturer warranty and are manufactured in compliance with UL 508 industrial control enclosure and UPS standards. The FPO150-2D8E4 is sourced direct from the manufacturer or US channel partner — no grey-market, no parallel imports. Pair this supply with Lifesafety Power battery backup modules, surge suppressors, and accessory fuses to round out a redundant access control power infrastructure.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've installed the FPO150-2D8E4 in dozens of mid-scale access control retrofits, and it consistently simplifies two operational pain points. First: mixed-voltage panels. In the real world, most commercial properties don't rip and replace door hardware all at once — you inherit 10-year-old 12V card readers on the front entrance, specify new 24V solenoid strikes on the rear exits, and suddenly need two separate power rails. The FPO150-2D8E4 eliminates the argument about which supply is primary and which is backup. Second: the 16 individually fused 3A outputs with per-output Bus1/Bus2 routing mean you can distribute loads cleanly across a control panel without single-point-of-failure daisy-chains. On a 16-door system, each door's strike and reader can have its own auxiliary output, and a blown fuse on one door doesn't cascade to neighbors. That architectural clarity cuts mean-time-to-repair when you're troubleshooting a dead strike at 2 AM.
The real limitation — and this trips up integrators who don't read the spec carefully — is that voltage selection is hardware-locked. You cannot configure Bus1 to 12V and Bus2 to 24V on the same unit. The selector switch commits the entire supply to either 12A/12V or 6A/24V at install time. If you spec this into a mixed-voltage job and the panel topology requires both rails to be switchable between 12V and 24V per zone, you cannot use this supply. You'll need two single-output Lifesafety supplies instead. Also: this supply is Lifesafety-panel-specific. It is not a generic 12V/24V access control supply. Do not attempt to use it with Salto, Kaba, Bosch, or any other third-party access control ecosystem — the Bus1/Bus2 routing and firmware handshake are proprietary to Lifesafety panels. We've seen integrators order this blind for a job, and it arrives to a non-Lifesafety system; it becomes a very expensive return.
Technical Highlights:
- Dual-Output Consolidation: 12A/12V or 6A/24V in one enclosure eliminates the panel real estate, wiring harness, and circuit-protection overhead of two separate supplies. On a 32-door system, that's typically 8–12 inches of DIN rail and 6–10 feet of interconnect cable saved.
- Per-Output 3A Fusing: Each auxiliary output is independently fused, so a shorted solenoid on output 7 does not black out outputs 1–6 or 8–16. Fault isolation means faster diagnostics and fewer false positives in zone-health monitoring.
- Bus1/Bus2 Selectable Routing: Allows flexible load balancing. Heavy hitters (like multi-coil relay modules) can be assigned to Bus1; distributed loads (readers, single-coil strikes) to Bus2 or vice versa. Panel topology determines the allocation; this supply gives you the routing flexibility to match it.
- Compact E4 Form Factor: 24H × 20W × 4.5D inches fits retrofit panels where DIN rail is at a premium. Smaller footprint than fielding two single-output supplies side by side.
- 16V DC Regulated Internal Bus: Ensures voltage stability across the full load sweep. As your auxiliary outputs draw current, the 16V intermediate rail maintains regulation, so your main 12V or 24V rail doesn't sag under transient peak loads (door strikes energize hard and fast).
Deployment Considerations:
- Confirm your Lifesafety access control panel model supports the FPO150-2D8E4 before ordering. Panel firmware, generation, and bus topology determine compatibility. If you're unsure, call Lifesafety technical support with your panel part number — a $200 supply is a cheap insurance policy versus a $1,500 retrofit labor bill to swap it out onsite.
- Voltage is non-reconfigurable per output. Choose 12V or 24V at install, and that decision is locked. If you later discover you need the opposite voltage on half your outputs, you cannot field-upgrade this supply — you'll need a second unit or a complete replacement.
- Per-output fuse limit is 3A. Solenoid strikes average 1.5–2.5A during pull-in, and readers average 0.2–0.5A. Map your load on paper before ordering. A strike + two readers per output is safe; two strikes on one output will trip repeatedly.
- Bus1/Bus2 routing is hardware-selectable per output but typically set during panel commissioning. Changing an output from Bus1 to Bus2 after go-live requires access to the supply (usually in a locked electrical cabinet) and may require panel reboot. Plan your output allocation upfront.
- This supply is Lifesafety ecosystem-specific. Do not order for Salto, Kaba, Bosch, Honeywell, or any other third-party access control vendor. It will not integrate, and you will not be able to return it — non-standard supplies often have no-return policies once opened.
The FPO150-2D8E4 is the right choice for Lifesafety Power panel ecosystems with mixed 12V and 24V loads, 8–32 doors, and distributed auxiliary output requirements. If you're consolidating power supplies on a retrofit and you're already committed to Lifesafety hardware, this unit cuts capex and panel clutter. Review the Lifesafety Power catalog for battery backup modules, surge suppressors, and related supplies to round out your power infrastructure.
