Lifesafety Power FPO250-4D8PE8M2 250W Dual-Bus Power Supply

Overview

The FPO250-4D8PE8M2 is a 250W power supply designed for distributed security and access control installations requiring multiple independent power feeds. It delivers either 20A at 12VDC or 10A at 24VDC — the dual-voltage output flexibility lets you match legacy 12V systems or migrate to 24V infrastructure without board-level redesign. The 32 class 2 power-limited outputs, each selectable for Bus 1 or Bus 2, allow you to isolate circuits by function or floor, reducing single-point failure risk in multi-building or campus deployments.

Compatibility

This unit integrates into any security backbone requiring PoE switch backup or auxiliary low-voltage distribution — access control panels, alarm signaling, door strikes, motion sensors, and low-power IP cameras with local 12/24V supplies. The two independent buses enable you to power separate subsystems (e.g., north and south entry points) from a single enclosure while maintaining electrical isolation for troubleshooting and maintenance.

Physical & Environmental

The E8 enclosure measures 36H × 30W × 4.5D inches with a 16 DR Mercury back plate, fitting standard 19-inch rack deployments or direct wall mount in telecom closets. Each output is capped at 2.5A to prevent cascading failures — if one circuit shorts, the remaining 31 outputs remain live. This current-limiting design is essential in wet or contaminated environments where insulation integrity cannot be guaranteed.