Lifesafety Power FPO250-D8E1M 250W Power Supply
Overview
The FPO250-D8E1M is a 250W access control power supply built for distributed security installations where you need to power multiple door controllers, readers, and ancillary devices from a single DIN-mount or wall-mount location. It delivers 20A at 12V or 10A at 24V — enough capacity to run a small to mid-sized access control network without the complexity of daisy-chaining multiple smaller supplies. The E1 enclosure (14H × 12W × 4.5D inches) fits standard electrical cabinets and uses a Mercury back plate for positive terminal distribution.
Compatibility
The FPO250-D8E1M is designed for Lifesafety Power Bus1 and Bus2 ecosystems. Eight DC auxiliary outputs are independently fused at 3A per output, and each output is selectable for Bus1 or Bus2 operation — giving you flexible load balancing across two separate distribution busses without requiring a second power supply. This architecture supports mixed-voltage installations where some circuits run 12V and others run 24V, provided you use a compatible dual-output module or configure outputs accordingly. Verify compatibility with your specific access control panel, door strike power requirements, and reader voltage specifications before installation.
Installation Notes
Mount the FPO250-D8E1M in a secure electrical enclosure or cabinet with forced-air cooling if ambient temperature exceeds 40°C; the internal components generate significant heat under full load. Secure 12V and 24V inputs according to your regional electrical code and UPS integration (if applicable). Each 3A output fuse protects a single circuit — a door strike, reader, or relay coil. Do not exceed 3A per output; oversized loads will trip the fuse and disable that output. Use appropriate gauge wiring for current draw and distance; voltage drop becomes significant on long runs to remote readers. Label all output circuits clearly for future troubleshooting.
