Lifesafety Power FPO150/250-2C8P3D8PE8M1-WP-AMZ01 Dual-Output Access Control Power Supply
Overview
The Lifesafety Power FPO150/250-2C8P3D8PE8M1-WP-AMZ01 is a configurable 24VDC power supply designed for small-to-mid-scale access control and security systems. It ships pre-configured for either 150W or 250W operation, with selectable 12VDC or 24VDC outputs and 16 total control outputs (8 relay lock controllers and 8 auxiliary DC channels). The unit fits inside an E8 enclosure (36H × 30W × 4.5D inches) with Mercury back plate, making it suited for wall or panel mounting in electrical closets, server rooms, or dedicated security racks. If you're integrating door locks, badge readers, or access control cabinets that demand Class 2 power-limited outputs with manual failsafe/failsecure switching per output, this supply handles that without external relays.
Key Features
- Dual Power Rating (150W / 250W): Choose 150W (12A at 12VDC or 6A at 24VDC) or 250W (20A at 12VDC or 10A at 24VDC) depending on your lock and reader load. Larger capacity reduces the risk of brownout when multiple doors actuate simultaneously — a real concern in multi-tenant buildings or campus deployments where simultaneous exit attempts are common.
- 16 Class 2 Control Outputs: Eight relay lock control outputs, each rated 2.5A and individually selectable for FAI (fail-as-is), failsafe, or failsecure operation. Eight additional 24VDC auxiliary outputs at 2.5A each, assignable to Bus1 or Bus2. This granular per-output configuration eliminates the need for external relay logic panels in many small installations.
- Selectable Output Voltage: Configure for either 12VDC or 24VDC operation. Allows you to match legacy 12V lock hardware or newer 24V systems without requiring a separate step-down converter. Most modern badge readers and electronic locks run 24V, but this flexibility is useful when retrofitting older security infrastructure.
- Bus1 / Bus2 Auxiliary Channels: Eight independent 24VDC auxiliary outputs split across two bus domains — Bus1 or Bus2 — so you can isolate different subsystems (e.g., one bus for door strikes, another for motion sensors) and apply separate supervision or monitoring logic.
- E8 Enclosure with Mercury Back Plate: 36H × 30W × 4.5D form factor houses the supply, terminal blocks, and fusing in a standard electrical cabinet-compatible shell. Mercury back plate provides a grounded mounting surface and simplifies wiring termination. Fits standard 36-inch-tall security cabinets.
- Per-Output Failsafe/Failsecure Selection: Each of the eight relay outputs is independently configurable for failsafe (de-energize to unlock on power loss) or failsecure (remain locked on power loss), and FAI mode for stateful operation. This avoids one-size-fits-all logic and adapts to mixed-use facilities where some doors must fail open (fire egress) and others fail closed (server room, cash vault).
Integration & Deployment Context
This unit is purpose-built for small access control installations — typically under 8 doors with a mix of electronic locks, badge readers, and auxiliary sensors. It integrates directly with most access control panels via hardwired relay loops or supervised DC outputs. The 24VDC main rail and auxiliary circuits work with standard access control wiring practices (18 AWG twisted pair is typical). Because both the lock relay outputs and auxiliary DC outputs are Class 2 power-limited, installation does not require licensed electrician involvement in many jurisdictions — check local codes. For larger deployments (16+ doors or multiple buildings), consider higher-capacity power supply options or multi-unit configurations.
Frequently Asked Questions
Q: Can the FPO150/250-2C8P3D8PE8M1-WP-AMZ01 be configured for both 12VDC and 24VDC outputs simultaneously?
A: No. The unit is configured at the factory for either 12VDC or 24VDC output. If you need both voltages in a single installation, you'll need a second supply or a multi-output unit. Confirm your voltage requirement with the control panel manufacturer before ordering.
Q: What happens if a relay lock output shorts to ground?
A: Each relay output is Class 2 power-limited at 2.5A, so a short will trip the output's fuse or internal current limit. The other seven relay outputs and auxiliary channels remain active. Check for wiring shorts at the lock or reader, and verify fuse rating before re-energizing.
Q: Does the FPO150/250 include battery backup or UPS functionality?
A: No. This is a straightforward 24VDC supply with no internal battery charging or backup capability. If you require power-loss holdover for electronic locks, integrate an external UPS or add a dedicated battery backup module to the cabinet.
Q: Is the Mercury back plate conductive?
A: Yes. The Mercury back plate is grounded and provides a common rail for equipment mounting and bonding. Use it to ground the cabinet frame and interconnected devices, following NEC/local electrical code.
Q: Can I field-configure the outputs from failsafe to failsecure mode?
A: Each relay output has a physical selector or jumper for FAI/failsafe/failsecure mode. These are set at the factory but can be changed in the field by opening the enclosure and adjusting the selector. Refer to the terminal block label or contact support for jumper location.
Q: What's the recommended wire gauge for the 24VDC main output and lock relay circuits?
A: Use 18 AWG (0.82 mm²) twisted pair for typical runs up to 500 feet from the supply to locks and readers. For longer runs or heavier loads (multiple locks per circuit), step up to 16 AWG or 14 AWG to minimize voltage drop. Always respect the 2.5A per-output limit and verify fuse sizing with your control panel documentation.
The FPO150/250-2C8P3D8PE8M1-WP-AMZ01 (often searched as FPO150/250 2C8P3D8PE8M1 WP AMZ01) fills a specific niche in small access control installations where you need granular failsafe/failsecure control on individual door circuits without building a custom relay cabinet. The eight selectable relay lock outputs are the real workhorse here — each one independently configurable for failsafe, failsecure, or FAI mode lets you handle mixed security policies in a single unit. That matters when a facility has both fire-exit doors (must fail open) and sensitive areas like server rooms or cash cages (must fail locked).
Technical Highlights:
- 250W maximum capacity (10A at 24VDC): Adequate for 8–10 standard electronic locks and badge readers running concurrently. The 150W option cuts this roughly in half, so right-sizing at procurement prevents false economy. If you're installing mag locks that draw 0.8A each, the 250W unit keeps you in the safety zone even with three simultaneous actuations plus auxiliary load.
- Eight Class 2 relay outputs at 2.5A each: Means no external relay card is needed for a standard 8-door installation. Each output is independently jumpered for fail mode, eliminating the need for parallel programming or a control panel with 16 relay outputs — saves cabinet space and cost in retrofit work.
- Bus1 / Bus2 auxiliary DC outputs: The eight additional 24VDC circuits can be split between two supervision domains. Useful when integrating motion sensors or request-to-exit buttons that need independent monitoring — you can wire Bus1 directly to a panel input without cross-talking with door lock supervisory logic.
Deployment Considerations:
- Factory-set voltage (12V or 24V) cannot be field-changed. Confirm your hardware voltage before ordering — mixing a 12V-configured supply with 24V locks or vice versa will either provide insufficient voltage or blow fuses immediately.
- Class 2 power-limited outputs mean you don't need licensed electrician sign-off in most jurisdictions, but that also means each output cannot source more than 2.5A. A single large mag lock or bank of readers on one output will hit that ceiling — you'll need to parallelize the load across two outputs or use a pre-amplified lock controller.
- No battery backup or UPS integration. If your facility requires power-loss holdover (e.g., enabling emergency egress for 30 minutes after main power loss), budget for an external UPS cabinet or add a standalone battery module and charging circuit — the FPO150/250 will not support that natively.
Best suited for warehouse access points, small office multi-unit buildings, or retrofit jobs where you need per-door failsafe logic without a complex panel or external relay racks. If you're standardizing across a larger enterprise or deploying more than 12 doors, evaluate network-based access control or higher-capacity centralized supplies instead.
