Lifesafety Power FPO150-B100C8D8E4X 150W Power Supply
Overview
The Lifesafety Power FPO150-B100C8D8E4X is a 150W distributed power supply designed for access control, door locks, and auxiliary load integration in mid-scale security deployments. It delivers either 12A at 12VDC or 6A at 24VDC — enough headroom to power multiple electrified locks plus auxiliary circuits without cascading voltage sag across your control network. The FPO150-B100C8D8E4X includes 8 individually fused relay outputs for lock control and 8 DC auxiliary outputs, each selectable between two independent buses. This architecture lets you isolate power domains, preventing a single load fault from dragging down unrelated circuits.
Key Features
- Primary Output Rating (12VDC): 12A continuous capacity gives you roughly 144W of available load before voltage regulation begins to sag — a practical threshold for powering 4–6 electrified locks plus triggered solenoids without undersizing the supply.
- Selectable Voltage Output: 12A @ 12VDC or 6A @ 24VDC from a single unit means you configure once and deploy across multiple door zones using the voltage your lock controllers expect. No need to stock two SKUs for mixed voltage sites.
- 8 Relay Lock Control Outputs (3A Fused): Each relay is independently fused at 3A and selectable for FAI (Fail As Is), failsafe, or failsecure mode — critical when a relay failure must not leave a door unsecured or inaccessible. You set the behavior per output, not globally.
- 8 DC Auxiliary Outputs (3A Fused): Separate fused channels let you power auxiliary loads (strobes, request-to-exit sensors, secondary control circuits) without consuming relay capacity or mixing high-inrush loads with lock solenoids.
- Dual Bus Architecture: Outputs selectable for Bus1 or Bus2 allow you to partition power distribution, ensuring that a short in one zone doesn't collapse voltage to unrelated door controllers or monitoring circuits.
- Adjustable Secondary Output (5–18VDC @ 4A Max): A secondary 12V module delivers up to 4A across the 5–18VDC range, useful for powering sensor interfaces or legacy control modules that operate outside the main 12/24VDC band.
- Class 2 Power-Limited Design: Meets safety standards for fire-rated installations where power-limited circuits must be physically separated from non-limited circuits — matters if your site requires UL 2044 or NFPA 70 compliance.
Integration & Compatibility
The FPO150-B100C8D8E4X integrates into any access control system using dry-contact relay actuation or 12/24VDC auxiliary control loops. Its failsafe/failsecure selectivity per output works with standard electric strike controllers, magnetic locks, and door-hold solenoids. The dual-bus output architecture suits multi-zone deployments where you run separate supervision circuits or power domains — common in warehouse automation systems where different dock zones need independent power supervision. Pair this supply with a UL-listed access control panel to automate lock sequencing and monitoring across multiple doors.
When to Choose a Different Model
If your deployment requires more than 8 relay outputs or exceeds 150W total load, step up to a higher-capacity Lifesafety Power supply or a modular power distribution unit. If you need integrated battery backup (UPS-style runtime on power loss), confirm whether your site requires automatic failover — some Lifesafety Power models add backup capacity, but the FPO150-B100C8D8E4X is line-powered only. For sub-50W auxiliary applications (single-door retrofits), a smaller 60W or 90W unit reduces cost and footprint.
The FPO150-B100C8D8E4X (often searched as FPO150 B100C8D8E4X) is a solid workhorse for mid-scale access systems where you need independent control of multiple door zones without voltage collapse risk. The per-output failsafe/failsecure selectivity is the real differentiator here — you're not locking the entire supply into one fail mode, which saves integration time and guards against mode-conflict mistakes during commissioning.
Technical Highlights:
- 12A @ 12VDC: 144W of available power lets you run 4–6 medium-draw locks (18–24W each) plus auxiliary loads on the same supply without regulation sag. Budget conservatively — a 5V sag under peak inrush can cause controller dropout.
- Fused Relay + Aux Outputs: Each of the 8 relay and 8 auxiliary outputs is independently fused at 3A. This means a stuck solenoid on one output doesn't blow the entire supply or the next relay in a daisy-chain — the fuse pops, that output goes dead, and the other 7 keep working.
- Selectable Bus Assignment: Bus1 and Bus2 outputs let you supervise power distribution independently — critical if your fire-rated system requires separate power paths or if you're splitting load between two separate ATS (Automatic Transfer Switch) domains.
- 5–18VDC Secondary Module: The adjustable 12V secondary at 4A max handles legacy card readers, analog sensor interfaces, or niche control modules that expect non-standard voltages — less common in new builds but valuable in retrofit situations.
Deployment Considerations:
- No Battery Backup in Base Model: The FPO150-B100C8D8E4X is line-powered only. If your site requires failsecure behavior on power loss, you'll need to size and wire a separate UPS or battery module — confirm early with your AHJ (Authority Having Jurisdiction) during design phase.
- Fuse Coordination: Each output is protected at 3A — fine for electrified strikes and low-current solenoids. If you're pushing 4–5A per lock (uncommon but possible on heavy-duty magnetic locks), current limiting kicks in; verify lock inrush specs against the supply's voltage regulation curve before final wiring.
- Thermal Margin: At full 12A load (144W dissipated), the supply will heat moderately. Mount in a well-ventilated enclosure or DIN rail setup — a hot supply reduces component life. Most integrators allow 10–15% headroom for thermal margin.
Deploy the FPO150-B100C8D8E4X into multi-door warehouse dock systems, mid-scale office access installations, or retrofit scenarios where you're replacing a single monolithic power supply with distributed per-zone control. The dual-bus and per-output failsafe selectivity shine in those environments.
Frequently Asked Questions
Q: Can I configure different outputs on the FPO150-B100C8D8E4X for failsafe and failsecure on the same supply?
A: Yes. Each of the 8 relay outputs is independently selectable for FAI (Fail As Is), failsafe, or failsecure mode. You can set door 1 to failsafe and door 2 to failsecure on the same supply — no need for separate power units per mode.
Q: What is the continuous power capacity of the FPO150-B100C8D8E4X at 12VDC?
A: The unit delivers 12A at 12VDC, which equals approximately 144W of continuous load capacity. Each output (relay and auxiliary) is fused at 3A, so you must respect individual branch limits.
Q: Does the FPO150-B100C8D8E4X include battery backup for power failure?
A: No. The FPO150-B100C8D8E4X is a line-powered supply without integrated battery backup. If your deployment requires UPS-style failover, you will need to provision a separate battery module or uninterruptible power supply.
Q: Can I use the FPO150-B100C8D8E4X to power both 12VDC and 24VDC loads on the same unit?
A: No. The primary output is selectable as either 12A @ 12VDC or 6A @ 24VDC — you choose one at configuration. However, the secondary 12V module (5–18VDC adjustable @ 4A) can deliver intermediate voltages for auxiliary loads if needed.
Q: What is the maximum current per relay and auxiliary output on the FPO150-B100C8D8E4X?
A: Each relay lock control output and each DC auxiliary output is fused and rated for a maximum of 3A. This protects the internal wiring and the fuse itself; exceeding 3A on any single output will trip the fuse for that output only.
Q: Is the FPO150-B100C8D8E4X suitable for use in fire-rated access control systems?
A: The unit is Class 2 power-limited, which meets safety standards for fire-rated installations where power-limited and non-power-limited circuits must be separated. Confirm with your local AHJ and the system designer that power-limited routing meets your site's requirements.
