What this product is
Architecturally, the R48-5800E integrates a wide-input (85V AC to 300V AC) single/three-phase-compatible active PFC front-end stage that boosts incoming AC to a regulated high-voltage DC link with input THD under 5%. The secondary power stage employs an isolated zero-voltage-switching (ZVS) LLC resonant converter with synchronous rectification to yield low-noise, tightly regulated -48V DC power. Autonomous hardware-level active current sharing and robust internal monitoring logic guarantee seamless parallel expansion.
What problem it solves
It resolves footprint congestion, excessive thermal dissipation, and erratic power disruptions in high-density telecom central offices. By offering an expansive input tolerance and automatic power derating under low-voltage conditions, it prevents nuisance dropouts caused by voltage sags and rolling brownouts. Advanced self-locking over-voltage protection (OVP) and thermal foldback circuitry protect critical battery strings and radio equipment from overstress and thermal runaway.
Who and where it is for
Ideal for major telecom central offices (COs), 5G macro base station hub sites, enterprise hyperscale data centers requiring -48V DC distribution, large-scale optical transmission transport nodes, and industrial power plants where superior availability and low PUE metrics are paramount.
