Lifesafety Power FPO250-2D8E8M3 250W Power Supply Board

Overview

The FPO250-2D8E8M3 is a 250W power supply board designed for access control and security system integration in cabinet and enclosure-based deployments. It delivers either 20A at 12VDC or 10A at 24VDC as primary output, with 16 auxiliary fused DC outputs rated 3A each — a common requirement for door strike feeds, lock controllers, and sensor circuits in multi-door access control systems. The board mounts in a standard enclosure measuring 30W × 36H × 4.5D inches with an included backplate capable of holding up to 12 Mercury/Lenel expansion boards, making it suitable for mid-to-large access control installations where centralized power distribution and modular board stacking are required.

Compatibility

The FPO250-2D8E8M3 is designed for use with Mercury and Lenel access control platforms that require multi-channel DC power distribution. The enclosure footprint and backplate design accommodate up to 12 compatible expansion boards, enabling scaled installations. Verify your specific Mercury or Lenel controller model supports this supply board before ordering — compatibility depends on your panel revision and firmware.

Installation Notes

The board requires standard 120VAC input (confirm your facility supply voltage before installation). Mounting is via the included backplate within a compatible enclosure. All 16 auxiliary outputs are independently fused at 3A per channel — ensure load calculations do not exceed 3A per circuit to avoid nuisance fusing. The 250W total capacity must account for primary output draw plus all auxiliary loads combined. Ensure adequate ventilation within the enclosure to prevent thermal stress during sustained operation.