Lifesafety Power FPO75-B100C4D8PE4M/T4-A Dual-Voltage Redundant Power Supply
Overview
The FPO75-B100C4D8PE4M/T4-A is a 75-watt redundant power supply designed for access control and security systems requiring dual-voltage distribution. It supplies both 12VDC at 2A and 24VDC at 2A on separate circuits — a configuration that eliminates the need to choose between voltage standards and lets you support mixed legacy and modern equipment on the same infrastructure.
The four dedicated door lock ports handle the largest current draw in access control installations (locks typically pull 1–2A during strike). Separating lock power from auxiliary circuits reduces voltage sag on low-amperage sensors and relays, improving reliability and reducing nuisance failures in dense deployments.
Compatibility & Configuration
Field-wired connection via 1502/MR52 tie wrap (included in standard configuration). The unit supports four independent lock channels plus eight auxiliary outputs, enabling a single supply to feed multiple door stations, mag locks, request-to-exit sensors, and door position switches without daisy-chaining power blocks across the cabinet.
Redundant architecture allows installation of parallel units for failover — critical in facilities where access system downtime creates security or life-safety liability. The T4-A variant indicates remote status monitoring capability, common in networked access control environments.
When to Choose a Different Model
If you need higher total wattage (multiple strikes or heavy solenoid loads), consider the FPO120 series from the same manufacturer. If your installation requires integrated battery backup, Lifesafety Power offers supervised supply models with UPS conditioning in the FPO series line. For systems running exclusively 24VDC without legacy 12V equipment, a single-voltage supply may simplify spare inventory.
