Lifesafety Power FPO250/250-E4 Expandable Dual Voltage Power System
Overview
The FPO250/250-E4 is a 250W expandable power supply rated for 20A at 12V or 10A at 24V — designed for mid-scale IP camera and access control deployments where you need either single or dual voltage rails from one enclosure. The E4 form factor houses both outputs in a compact, wall- or rack-mountable chassis, eliminating the need for separate 12V and 24V supplies when your site mixes voltage requirements across devices.
Compatibility
The FPO250/250-E4 serves installations running a mix of 12V and 24V devices: PoE injectors, non-PoE IP cameras, access control readers, lock controllers, and ancillary equipment. Verify your total load does not exceed 20A on the 12V rail or 10A on the 24V rail — typical integrated hubs and small camera arrays fall within this budget. For deployments requiring redundancy or higher total wattage, the expandable architecture allows stacking or parallel operation (consult the manufacturer for configuration details).
Installation Notes
Mount the E4 enclosure on a DIN rail or wall surface with proper ventilation — the 250W output generates heat under sustained load. Ensure input AC supply is stable and within the rated voltage range; undersized breakers or unstable mains will reduce effective output or trigger protective shutdowns. Use correctly gauged wire for output connections (typically 10 or 12 AWG depending on run length and amperage) to avoid voltage sag to downstream devices. Keep the enclosure away from moisture-heavy areas unless rated for outdoor installation — consult the spec sheet for environmental limits.
