Lifesafety Power FPO150-C8D8E4X 150W Access Control Power Supply
Overview
The Lifesafety Power FPO150-C8D8E4X is a 150W enclosure-mount power supply built for mid-scale access control deployments where independent lock control and peripheral device supervision matter. It delivers 12A at 12VDC or 6A at 24VDC—selectable at installation time—making it versatile enough to support diverse door hardware ecosystems. The real value is in the output configuration: 8 independently fused relay lock control outputs (3A per circuit), each configurable for failsafe, failsecure, or fail-as-is operation, plus 8 supervised DC auxiliary outputs that support dual-bus monitoring (Bus1 or Bus2). This combination is essential when a single facility needs mixed egress policies—some doors must unlock on power loss for life safety, others must lock.
Key Features
- Selectable Output Voltage: Choose 12VDC @ 12A or 24VDC @ 6A at installation. This flexibility avoids stocking multiple SKUs when integrating with different reader and lock manufacturers, each of which may standardize on one voltage or the other.
- 8 Relay Lock Outputs, 3A Each: Each relay is independently fused and selectable for failsafe (de-energize to unlock), failsecure (energize to lock), or fail-as-is. In a mixed-use office or warehouse, you can set emergency exits to failsafe while keeping secure storage areas failsecure—all from one power supply without additional logic modules.
- 8 Supervised Auxiliary DC Outputs, 3A Each: Support peripherals like door sensors, REX buttons, or alarm annunciators. Dual-bus supervision (Bus1 or Bus2) means you can monitor two independent circuits from a single power supply, catching open-door or tampering events in real time.
- Dual-Bus Supervision Architecture: Monitor separate zones or device chains on Bus1 and Bus2 simultaneously. If a sensor line is cut or a door wedged, the access control panel sees the event immediately. This prevents the silent failures that plague unmoniored deployments.
- Enclosure-Mount Form Factor: Designed for DIN-rail or cabinet installation behind the access control panel. Keeps power distribution organized and protects terminals from accidental contact in busy rack environments.
- Independent Fusing Per Output: A short on one lock circuit does not take down the entire supply. Each of the 8 relay and 8 auxiliary outputs is separately fused at 3A, so a solenoid failure or wiring fault isolates to a single door without cascading outage.
Integration & Compatibility
The FPO150-C8D8E4X integrates with any access control panel or standalone reader that accepts 12VDC or 24VDC supervised power and drives solenoid locks via relay signals. Typical deployments include:
- 4–8 door mid-scale access control systems requiring per-door failsafe/failsecure policy.
- Facilities mixing electric strikes, magnetic locks, and motorized latches—each with its own relay output and fusing.
- Deployments where door sensors, REX buttons, or alarm devices must be supervised to catch faults or tampering.
If your deployment requires fewer than 8 lock outputs or does not need independent failsafe/failsecure selection per door, a lower-channel power supply in the Lifesafety Power catalog may reduce cost and simplify wiring. Conversely, if you need more than 8 supervised relay outputs, redundant power architecture, or integrated battery backup for extended hold-up time, consult your access control system design documentation to determine whether a modular or larger-capacity power solution is warranted.
Frequently Asked Questions
Q: Can I change the output voltage after installation?
A: The FPO150-C8D8E4X is selectable between 12VDC @ 12A and 24VDC @ 6A at installation. Changing the selection later requires power-down and reconfiguration; it is not a field-swappable setting. Plan the voltage requirement during system design.
Q: What happens if a lock circuit is short-circuited?
A: Each relay lock output is independently fused at 3A. A short on one lock will blow its fuse, isolating that door without affecting the other 7 relay outputs or the auxiliary outputs. Replace the fuse to restore that circuit.
Q: Do the auxiliary outputs support sensor supervision?
A: Yes. The 8 auxiliary outputs support dual-bus supervision (Bus1 or Bus2), allowing you to monitor door sensors, REX buttons, or alarm devices. The access control panel detects open-circuit or short-circuit faults on the supervised line in real time.
Q: Can each relay output be set independently to failsafe or failsecure?
A: Yes. Each of the 8 relay outputs is selectable for failsafe (de-energize to unlock), failsecure (energize to lock), or fail-as-is operation. This allows a single power supply to support mixed egress policies across multiple doors.
Q: What is the maximum current per relay and auxiliary output?
A: Each relay lock output and each auxiliary output is rated 3A. Total available current depends on the voltage setting: 12A @ 12VDC or 6A @ 24VDC. Plan solenoid and sensor loads accordingly.
Q: Is battery backup available with the FPO150-C8D8E4X?
A: Battery backup capability is not included in this model. If you require hold-up power for failsafe unlock or extended access during power loss, consult a higher-tier Lifesafety Power supply with integrated battery charging, or design a separate UPS architecture.
The FPO150-C8D8E4X solves a specific problem: multi-door access control where one-size-fits-all failsafe doesn't work. Many integrators are caught between buying eight separate single-relay supplies or over-speccing a modular platform. This 150W unit with its 8 independently selectable relay outputs and dual-bus supervision backbone lets you deploy per-door policy without architectural bloat.
Technical Highlights:
- Per-Output Fusing (3A each relay and auxiliary): Eliminates cascading failures. A short on one electric strike does not kill the adjacent REX button or alarm annunciator—critical in busy facilities where downtime compounds quickly.
- Dual Voltage Selectable (12A @ 12V or 6A @ 24V): Matches diverse hardware ecosystems without stock-keeping. If your readers are 24V and your locks are 12V on the same job, you now design two systems with identical power architecture rather than custom spec sheets.
- Failsafe + Failsecure in One Enclosure: Emergency exits unlock on power loss; secure storage stays locked. Eliminates the need for external relay logic or a second power supply to achieve mixed safety policy.
Deployment Considerations:
- This unit has no onboard battery backup. If you need 30+ minutes of hold-up for controlled failsafe egress during outage, plan a separate UPS or design for a battery-capable variant in the Lifesafety Power line.
- The 3A per-output ceiling is tight for high-inrush solenoids. Verify your electric strike or magnetic lock does not exceed 3A steady-state; oversized hardware will blow the fuse repeatedly.
- Dual-bus supervision assumes your access control panel has two independent supervision inputs. Older panels may have only one. Confirm before specifying both Bus1 and Bus2 monitoring.
Deploy the FPO150-C8D8E4X when you have 4–8 doors with mixed egress requirements and each door's policy must be independently settable. Office buildings with emergency exits (failsafe) and server room entry (failsecure) are the textbook use case. If all doors share the same policy, drop down to a simpler supply. If you need battery hold-up or more than 8 relay outputs, step up to a modular or redundant architecture.
