SPD244803 is a 480W three-phase AC/DC switching power supply designed for DIN rail installation in industrial automation applications. It features universal AC three-phase input with a full range of 340–575 VAC (also usable as single-phase 480 VAC), delivering a regulated output of 24 VDC at 30A with high efficiency up to 91%. The unit incorporates power factor correction (PFC) as standard, parallel connection capability, and compact dimensions (124 × 150 × 118.8 mm), with output voltage regulation of ±1% in single mode and ±5% in parallel mode. Protection features include overvoltage protection (30–33 VDC range for 24V model), internal surge protection via varistor, and output short-circuit protection with selectable continuous fold-forward or discontinuous 3-second shutdown modes. The supply is rated for ambient temperatures from -30°C to +71°C, offers 500 VDC electrical isolation, and holds UL/cUL, TUV/CE, and RoHS compliance, making it ideal for demanding industrial control and automation systems requiring reliable, compact power delivery.