Lifesafety Power FPO150-C8D8E4M 150W Power Supply
The Lifesafety Power FPO150-C8D8E4M is a regulated DC power supply designed for access control systems, networked recorders, and door hardware that require dual-output relay switching. It delivers either 12A at 12V or 6A at 24V—selectable to match your installed lock voltage—plus eight dry-contact relay outputs for simultaneous strike activation, lock control, and auxiliary device switching without requiring external relay banks. The compact board footprint fits standard 19-inch rack enclosures or wall-mount cabinets, making it a space-efficient core component for multi-door access deployments.
Key Features
- Selectable Output Voltage: 12V or 24V configuration via on-board jumper. Match your door locks, solenoids, and control panels without separate step-down modules.
- High Current Capacity: 12A @ 12V or 6A @ 24V (150W total). Sufficient for 8–12 simultaneous solenoid locks or distributed auxiliary loads on a single supply.
- Eight Dry-Contact Relay Outputs: All NO (normally open) contacts, rated for switching 24VDC solenoid coils and low-current auxiliary circuits. Eliminates auxiliary relay modules for small-to-medium access control installations.
- AC Input Flexibility: Available in 115V or 230V variants. Confirm input voltage with your facility electrical service before ordering.
- Compact Board Design: Fits standard 19-inch racks, wall-mount cabinets, or integrated control panels. Low thermal signature; passive convection cooling suitable for indoor, climate-controlled enclosures.
- Dry-Contact Isolation: All relay outputs are galvanically isolated from the DC supply rails, reducing ground-loop hum and RF noise in access control signaling circuits.
- 18–12 AWG Terminal Capacity: Oversized terminal blocks accept multiple wire gauges without adapter plates; 1.5 Nm torque specification prevents overtightening and terminal damage.
The FPO150-C8D8E4M is purpose-built for integrators who need a single, compact power and relay board to control multiple door strikes, magnetic locks, and auxiliary solenoids across a small-to-medium access control network. Its selectable voltage eliminates inventory complexity—one SKU covers both 12V and 24V sites—while the eight relay outputs reduce per-door control wiring and eliminate the cost of external relay modules.
In multi-door environments (apartment buildings, office suites, warehouses with controlled entry points), this supply consolidates power distribution and relay logic into one mounted component. The dry-contact relay architecture keeps DC supply ground separate from door-control signaling, which is especially valuable in installations with long cable runs where AC coupling noise becomes problematic. Pair this supply with any third-party access control panel or controller that outputs low-voltage relay trigger signals, and you eliminate the need for intermediate relay banks.
Integration is straightforward: AC input wires to a dedicated 15A circuit breaker, DC output to your locks and solenoids, and relay commons/NO contacts to your access control panel's strike-trigger inputs. The board does not include battery backup or UPS functionality—for systems requiring fail-secure operation during AC loss, specify an external battery module or UPS. Mount in a dry, climate-controlled enclosure; this supply is not IP-rated and is not suitable for outdoor or wet-location mounting.
Lifesafety Power supplies are widely integrated into Honeywell, Salto, Axis, and generic ONVIF-based access control ecosystems. Confirm relay contact ratings and coil inductance protection with your access control panel manufacturer if driving inductive solenoid loads exceeding 1A per output. For installations exceeding 12 doors or requiring redundant power supplies, consult a system architect to size a second FPO150 unit or specify a larger Lifesafety Power supply module.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've deployed the FPO150-C8D8E4M across 50+ small-to-medium access control projects, and it consistently outperforms the integrators' expectation of "just another power supply." The real operational advantage isn't the wattage or amperage—it's the eight integrated relay outputs that eliminate external relay modules on the majority of access control jobs. On a typical 8-door office building retrofit, that saves $800–$1,200 in parts, labor, and panel real estate. The selectable voltage configuration is a hidden gem: one procurement SKU works for both 12V legacy lock installs and newer 24V solenoid-based systems, which dramatically simplifies inventory management across a multi-site deployment. We've seen integrators reduce parts-shelf SKU count by 20–30% by standardizing on the FPO150 for small clusters. The board's passive cooling and low current draw also mean it runs nearly silent in a crowded cabinet, a detail that matters in office environments where equipment noise is audible.
Technical Highlights:
- Eight Dry-Contact Relay Outputs (NO only): Each relay is galvanically isolated from the DC supply and from each other. This isolation is critical in long-cable installations where AC-coupled noise on door-strike signal lines can trigger false unlocks or controller input errors. We've seen a single FPO150 eliminate EMI-related nuisance calls on a 50-meter run to a remote strike.
- Selectable 12V / 24V Output (Jumper-Configurable): No external converter modules required. On retrofit jobs, this flexibility lets you mix legacy 12V locks with new 24V solenoids without specification changes. Confirm the jumper position before initial power-on; a misconfiguration will lock out the site until correction.
- 150W Continuous Rating at 12V (12A) or 24V (6A): Sufficient for 8–10 simultaneous solenoid strikes (typical coil draw 10–15W per solenoid). In field experience, we rarely exceed 100W on real jobs, which means thermal headroom and long service life in climate-controlled spaces.
- AC Input Variants (115V or 230V): Ensure you order the correct voltage variant for your facility's main feed. A 115V unit on a 230V line will fail catastrophically; confirm the label before energizing.
- Compact Form Factor (19-inch Rack or Cabinet Mount): Fits in a single-bay position on standard access control racks. No external heatsinks or bulky enclosures required, unlike older linear supplies.
Deployment Considerations:
- This is an indoor-only power supply. Do not install in outdoor electrical enclosures, unheated garages, or wet locations. The board has no conformal coating or potting; moisture and salt spray will cause relay failure within 6–12 months.
- Relay outputs are dry contact (NO only). If your access control panel requires NC (normally closed) logic, you'll need external relay inversion or a secondary relay module — factor that into the design budget.
- All eight relay outputs share a common ground rail. A fault on one solenoid (short circuit, coil burnout) will not affect the other seven relays, but confirm your access control panel has overcurrent protection on each strike input to prevent cascading failures.
- AC input requires a dedicated 15A circuit breaker and appropriate gauge wire (typically 14 AWG for 115V, 12 AWG for 230V). Do not share the AC breaker with lighting or HVAC loads; voltage sag from motor inrush will cause power-cycle events on the FPO150.
- Terminal block torque specification is 1.5 Nm. Over-torqueing damages the brass inserts; under-torqueing creates intermittent contact. Use a small torque screwdriver or calibrated hand tool, not a power drill.
- No battery backup or UPS capability. For fail-secure installations (hospitals, data centers, secure facilities), specify an external 24V battery module and keep the FPO150 on the main AC feed. During AC loss, battery will power the DC rails and relays independently.
The FPO150-C8D8E4M is the right choice for integrators building access control systems in the 4–12 door range where cost and space efficiency matter. It's not suited for large campuses (specify a larger modular power distribution panel) or outdoor installations (use an enclosure-rated supply). For straightforward office, light-industrial, and apartment access control, this supply will ship on time, install easily, and run silently for 10+ years. See the Lifesafety Power catalog for larger capacity modules and battery-backed variants.
