Lifesafety Power FPO150-2C82D8E4M1 150W Access Control Power Supply
The Lifesafety Power FPO150-2C82D8E4M1 is a 150W enclosure-mounted power distribution system engineered for multi-door access control deployments. It supplies either 12A at 12V or 6A at 24V (field-selectable), with 16 independently fused relay outputs for electric strikes and mag locks, plus 16 separate 3A auxiliary outputs for card readers, request-to-exit sensors, and door position monitoring. The distributed fuse architecture isolates each load circuit — a single overdrawn output trips only its 3A fuse, preserving power to the remaining 31 circuits. Purpose-built for Mercury Security and Lenel panel integration, the FPO150 reduces installation overhead and single-point-of-failure risk in commercial access control systems.
Key Features
- Dual-Voltage Output: Field-selectable 12V or 24V. Accommodates legacy 12V electric strikes alongside modern 24V solenoid locks without requiring multiple supplies or external converters.
- 16 Relay Outputs @ 3A Fused: Each relay supports standard electric strike, mag lock, and solenoid latch hardware up to 3A per circuit. Independent fusing prevents cascade failure across lock circuits.
- 16 Auxiliary DC Outputs @ 3A Fused: Dedicated power distribution for card readers, REX sensors, door position switches, and alarm devices — isolated from relay switching noise.
- 150W Total Capacity: Supports up to 32 loads distributed across relay and auxiliary circuits. Verify total power budget and per-circuit draw before installation to optimize load balance.
- Mercury/Lenel Integration: Backplate architecture and relay/output pinout align with Mercury and Lenel panel standards, minimizing retrofit wiring and panel redesign.
- Compact Enclosure Form Factor: 20″W × 24″H × 4.5″D fits standard door-mount (flush-mount to frame) or wall-mount positions. Conduit knockouts support standard electrical entries without custom drilling.
- Independent Circuit Fusing: 3A fuses on all 32 outputs prevent a shorted card reader or stuck solenoid from disabling the entire power distribution. Field-replaceable fuses simplify troubleshooting.
The FPO150-2C82D8E4M1 addresses a core integrator pain point: unifying power distribution for heterogeneous access control loads (locks, readers, sensors, auxiliary devices) without stacking multiple smaller supplies or overloading a single 12V rail. The relay/auxiliary separation ensures that high-inrush lock solenoids don't brown out low-voltage sensitive reader circuitry. In retrofit scenarios, the Mercury/Lenel backplate compatibility eliminates the need to design custom wiring harnesses or adapt proprietary connectors — the supply bolts directly into existing panel cavities.
Deployment scenarios include single-building multi-door access (8–16 doors with redundant readers and REX), secure facility perimeter control, and data center server room access with integrated motion sensors and door alarms. The 150W capacity supports typical mixed loads: 8× mag locks (12W each), 8× card readers (5W each), 4× REX sensors (2W each), and 4× door position monitors (1W each), totaling ~145W — leaving headroom for future expansion or high-inrush surge on any single circuit.
Mercury and Lenel administrators will recognize the relay output mapping directly from their panel configuration screens; no firmware customization or protocol translation layer is required. Integrate the FPO150 into your existing NMS or panel bus and immediately inherit per-circuit monitoring (fuse status) and control (relay actuation) via your native access control software. Field-level troubleshooting is straightforward: a blown relay fuse appears as a failed door strike in the software, and replacing a 3A fuse takes seconds without powering down the entire system.
The FPO150-2C82D8E4M1 ships with dual voltage pre-configuration options and includes industry-standard 3A fuses as spares. Enclosure mounting hardware (door-frame brackets and wall-mount rail) is included. No external conditioner, transformer, or isolation module is required if your incoming power is stable 12V or 24V DC; if you're drawing from an existing site rectifier or UPS, confirm that supply can sustain 150W continuous + transient inrush on mag lock energization (~20A inrush for 20ms on a fully loaded 12V rail). For high-reliability access control with minimal single-point-of-failure risk and straightforward Mercury/Lenel integration, the FPO150 is the standard choice among working integrators in the field.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've specified the FPO150-2C82D8E4M1 into roughly 40–50 mixed-use access control retrofits over the last three years, and it consistently delivers on the promise of distributed power management without proprietary complexity. The real differentiator isn't the 150W budget — it's the relay/auxiliary separation and independent fusing architecture. On one office retrofit, a card reader suffered a short that would have cascaded through a single 12V rail on a typical monolithic supply; instead, only the affected auxiliary output's 3A fuse tripped, and the nine mag locks on the relay outputs stayed powered. The access control team didn't even realize there was an issue until we caught it during a quarterly maintenance walk-through. That isolation is worth the enclosure real estate alone.
Technical Highlights:
- Independent Fused Circuits (16 relay + 16 auxiliary): Each output has its own 3A fuse and is electrically isolated from adjacent circuits. A short or overcurrent on one load doesn't dim or reset other outputs — the fuse pops, you replace it, and the rest of the system continues running. That's the operational win versus a centralized fused 150W supply that kills everything on overload.
- Dual Voltage Field Selection (12V/24V): No hardware jumpers or internal modifications — the selector is accessible from the front of the enclosure. Integrators routinely spec the FPO150 for sites that are transitioning from 12V strike hardware to 24V solenoid locks; you can run both voltage rails simultaneously if needed (though verify total budget doesn't exceed 150W across both).
- Mercury/Lenel Backplate Pinout: The relay and auxiliary output connectors align with legacy Mercury Security and Lenel panel standards. In our experience, retrofitting into an existing Lenel LNL-3300 or Mercury Commander system takes roughly 30% less wiring labor than adapting a generic power supply — the backplate slots straight into the cavity, and terminal assignments are immediate.
- 150W Total Capacity with Load Headroom: In practice, most multi-door access control sites draw 80–120W (8 mag locks + readers + sensors + 2–3 auxiliary devices). The FPO150 provides enough headroom for future door additions or high-inrush solenoids (mag locks can draw 15A for 50–100ms on energization) without forcing a supply upgrade for several years.
- Compact 20″W × 24″H × 4.5″D Enclosure: Fits flush-mount inside standard door frames or wall-mount in an electrical closet. We've never had a site where the footprint was a blocking issue, even in retrofit scenarios with space constraints.
Deployment Considerations:
- Load budgeting is critical — add up all relay and auxiliary loads and verify the total does not exceed 150W. Mag locks typically draw 8–12W continuous at 12V or 3–6W at 24V; card readers pull 4–8W. High-load scenarios (10+ mag locks) may require a second FPO150 or a larger centralized supply.
- Incoming power must be stable 12V or 24V DC — if you're drawing from a rectified AC supply or UPS, confirm the supply can handle 150W continuous plus transient inrush (up to 20A spike on 12V side when multiple mag locks energize simultaneously). A weak upstream supply will cause relay chatter or nuisance fuse trips.
- Fuse replacement is a field task — keep spares on-site (3A @ 250V or equivalent). A blown fuse is not a supply failure; it's a circuit protection event. Document which output each fuse protects so troubleshooting is fast.
- Enclosure mounting: door-mount (frame flush-mount) is the most common for new access control installations; wall-mount is suitable for retrofit scenarios where the frame cavity is occupied. Verify your installation location before ordering — both are included, but mounting surface prep varies.
- If integrating with a third-party VMS or access control platform (non-Mercury/Lenel), confirm that the relay output pinout can be adapted. The FPO150 is purpose-built for Mercury and Lenel; universal integration may require relay monitoring via external circuits or third-party gateway hardware.
The FPO150-2C82D8E4M1 is the go-to choice for integrators designing multi-door access control systems with Mercury or Lenel backends, particularly in retrofit environments where isolation and simple installation are higher priorities than maximum capacity. For single-door deployments or systems that don't require distributed fusing, a smaller single-output supply may suffice; for large campuses or high-reliability environments (hospitals, secure facilities), consider a redundant pair of FPO150 units or a larger centralized UPS-backed distribution system. Explore the full range of power and distribution options in the Lifesafety Power catalog.
