Lifesafety Power FPO250-B100C8D8E4 250W Dual-Output Power Supply Board
Overview
The FPO250-B100C8D8E4 is a 250W secondary power supply board designed to distribute power across multi-door access control and security integrations. It selects either 12VDC @ 20A or 24VDC @ 10A—critical for matching your lock voltage architecture without running separate supply lines. The adjustable 5–18V secondary output at 4A maximum handles auxiliary devices (sensors, keypads, LED status indicators), reducing the need for additional transformers in dense cabinet installations.
Compatibility
This board integrates into legacy and current access control frames where a centralized power supply manages multiple electronic locks, magnetic locks, and door readers. The 8 relay lock control outputs (fused at 3A per output) support fail-safe or fail-secure lock solenoids, while the 8 auxiliary DC outputs (also 3A per output) distribute standby and supervisory power. Total load capacity of 24A on primary output and 4A on secondary constrains installation scope—account for inrush current on solenoid energization when calculating concurrent door operations.
Installation Notes
The FPO250-B100C8D8E4 fits a Size 24 enclosure (20W × 24H × 4.5D inches), making it suitable for vertical distribution panels in electrical closets or equipment rooms. Input voltage selection and fuse ratings must be verified during integration; each relay and auxiliary output is independently fused at 3A to prevent cascade failures if a single lock or device draws excessive current. No battery backup is integrated—pair this with an external UPS or dedicated battery backup module if power continuity is required during outages.
