Lifesafety Power FPO75/75-C4P3D8PE4M 75W Power Supply Board
Overview
The FPO75/75-C4P3D8PE4M is a 75W power supply board (PSB) engineered for access control systems and lock control applications. Delivers 6A at 12V or 3A at 24V depending on configuration — a straightforward DC distribution solution for door locks, readers, and auxiliary control devices. The enclosure measures 20W × 24H × 4.5D inches and ships with a Mercury/Lenel backplate for direct mounting into standard access control racks.
Compatibility
This board integrates with Mercury Security and Lenel access control platforms. The four relay lock control outputs and 24 class 2 power-limited auxiliary DC outputs (2.5A per output maximum) support standard electromagnetic locks, electromechanical strikes, and low-current control signaling. Confirm your control panel's backplate mounting standard before ordering — the included backplate is Mercury/Lenel specific.
Installation Notes
Class 2 power-limited design means all outputs cap at 2.5A per channel. This is sufficient for single-door electromagnetic locks but limits multi-door parallel configurations — size auxiliary power distribution accordingly. The enclosure footprint (4.5 inches deep) fits standard 24-inch-wide rack installations. Ensure input AC supply matches the board's rated voltage (confirm with your Mercury/Lenel documentation). Relay lock outputs require dry-contact wiring to your lock hardware — verify relay contact ratings match your strike voltage and current draw.
