Lifesafety Power FPO150/250-2C8P3D8PE8M1/P16-A Access Control Power Supply
Overview
The Lifesafety Power FPO150/250-2C8P3D8PE8M1/P16-A is a dual-output power supply designed for security and access control installations where relay-driven lock management and auxiliary device control are essential. This unit delivers selectable power configurations—150W at 12A/12V or 250W at 20A/12V—allowing integrators to match capacity to site requirements without oversizing. The supply includes 16 individually configurable relay lock control outputs and 8 auxiliary 24VDC outputs, all housed in an E8 enclosure (36H × 30W × 4.5D inches) with a Mercury backplate and MR52/EP1502 control board.
Key Features
- Dual Power Ratings: Choose 150W (12A/12V) or 250W (20A/12V) depending on load requirements. This flexibility prevents over-specification on smaller sites and ensures adequate capacity for multi-door installations without requiring a larger enclosure.
- 16 Relay Lock Control Outputs: Each rated for 2.5A class 2 power-limited operation, individually selectable for FAI (Fail As Is), failsafe, or failsecure logic. Critical for managing multiple door strikes, mag locks, or gate operators with independent failure behavior.
- 8 Auxiliary 24VDC Outputs: Class 2 power-limited at 2.5A per output, assignable to Bus1 or Bus2. Supports badge readers, request-to-exit sensors, and other 24V field devices without requiring separate circuit boards or external supplies.
- E8 Enclosure Form Factor: Compact vertical mounting (36 inches height) fits standard cabinet and DIN rail installations. Mercury backplate integration simplifies wiring and reduces bench labor during integration phases.
- Redundant Bus Architecture: Bus1/Bus2 assignment on auxiliary outputs permits logical separation of reader circuits from sensor circuits or geographic isolation across a multi-location site, improving troubleshooting isolation and fault containment.
- Class 2 Power-Limited Design: All outputs deliver low-energy power suitable for residential and commercial access control without triggering high-power wiring code restrictions, reducing installation overhead on retrofit projects.
Integration & Compatibility
The FPO150/250-2C8P3D8PE8M1/P16-A integrates with standard access control panels, credential readers (magnetic stripe, proximity, multitech), and electromagnetic lock hardware. The 16 relay outputs accommodate both momentary-action and latching-action lock operators. Bus-selectable outputs allow pairing with distributed reader networks or time-clock–managed facility circuits. Mercury control board compatibility ensures spares availability and straightforward diagnostics within the Lifesafety Power ecosystem.
Deployment Scenarios
Install this unit in multi-door access control cabinets where relay-driven mag locks or strikes are the primary control method. The 250W option handles 8–10 simultaneous strikes during peak egress; the 150W option suits 4–6 door installations or facilities with staggered access patterns. Integrators often deploy the FPO150/250 as the backbone power and logic distribution point in standalone card access systems, building automation–integrated security, and warehouse automation gateways where 24V sensor networks coexist with 12V lock operation.
Frequently Asked Questions
Q: What's the difference between the 150W and 250W versions of the FPO150/250-2C8P3D8PE8M1/P16-A?
A: The 150W model delivers 12A at 12V; the 250W delivers 20A at 12V. Choose 150W for 4–6 door installations or low-duty-cycle access; choose 250W for facilities with 8+ doors or where multiple locks may energize simultaneously.
Q: Can I use a 12V mag lock with the 24V auxiliary outputs on the FPO150/250?
A: No. The auxiliary outputs are fixed 24VDC. Use the 16 relay lock control outputs (which handle 12V mag locks directly) instead, or add a step-down regulator if 24V field devices require 12V conversion.
Q: How do I assign an auxiliary output to Bus1 versus Bus2?
A: Bus assignment is performed during panel configuration or commissioning via jumpers on the Mercury MR52/EP1502 board. Consult the control board wiring diagram for your specific site setup.
Q: Is battery backup available for the FPO150/250?
A: Battery backup is not integrated into the FPO150/250 itself. You must provision an external battery backup system (UPS or dedicated battery module) if you require power continuity during mains failure.
Q: Does the FPO150/250-2C8P3D8PE8M1/P16-A comply with UL or NFPA standards?
A: Consult the manufacturer specification sheet or submit a pre-sales inquiry with your site code and jurisdiction requirements; compliance ratings vary by region and application.
Q: What is the maximum total load I can draw across all 16 relay outputs at once?
A: Each relay output is limited to 2.5A, so the theoretical maximum is 40A total (16 × 2.5A). In practice, the total supply current capacity (12A or 20A depending on the model) is the binding limit—simultaneous activation of all 16 relays would exceed supply amperage and trigger protection.
I spec the FPO150/250-2C8P3D8PE8M1/P16-A regularly on multi-door access control jobs where relay-driven mag locks dominate the load. The dual power rating (150W/12A or 250W/20A) is a genuine flexibility win—you're not locked into buying a 250W supply for a 4-door site, and the 16 individually configurable relay outputs with per-output selectable failsafe/failsecure logic eliminate the need for secondary relay modules on most standard deployments.
Technical Highlights:
- 16 Relay Outputs at 2.5A Each: Handles electromagnetic lock strikes, mag locks, and gate operators with independent failure behavior on each output. The class 2 power-limited design keeps you out of high-energy wiring code restrictions on retrofit jobs.
- Dual Output Configuration (12V + 24V): The 8 auxiliary 24VDC outputs (Bus1/Bus2 assignable) let you run badge readers and sensors without a separate 24V supply. This consolidation reduces enclosure clutter and simplifies diagnostics.
- E8 Mercury Backplate Integration: 36-inch vertical form factor and Mercury board compatibility mean faster bench integration and straight-forward parts stocking. Field replacement of the control board is a one-person job.
Deployment Considerations:
- Do the math on simultaneous load. The 150W/12A model will choke if you energize more than 4–5 12V mag locks at once; the 250W/20A handles 8–10 concurrent strikes. Know your facility's peak egress pattern before you order.
- Battery backup is NOT integrated. If you need power continuity during mains failure, plan for an external UPS or battery module—factor that cost and space into the cabinet design upfront.
- Bus1/Bus2 assignment on the 24V auxiliary outputs requires jumper configuration on the Mercury board during commissioning. Have the wiring diagram ready on your first visit, or expect a callback if the integrator didn't document the setup.
Deploy this unit as the central power and logic hub for access control cabinets in retail, hospitality, and warehouse automation sites where 4–10 doors are the norm. It's not a Swiss Army knife for every lock type—you need a relay module for non-strike applications like overhead door operators—but for mag lock–heavy sites, it eliminates a separate power supply board and keeps the enclosure clean.
