Delta DPR 48/30-D is an industrial-grade switch-mode rectifier module engineered with high-frequency resonant soft-switching topology and hot-swap modularity, delivering 1740W total output (nominal 53.5V DC / 30A) across an ultra-wide 90V–300V AC input envelope for carrier-class telecom installations.
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A modular, single-phase hot-pluggable AC/DC power conversion unit designed for 19-inch subracks, featuring integrated Active Power Factor Correction (PFC), high-frequency isolation transformer stages, an intelligent microcontroller, a blind-mate high-current rear backplane connector, and intelligent front-to-back forced-air cooling.
Eliminates network downtime caused by unstable rural grid voltages, mitigates thermal degradation in harsh outdoor shelter environments, lowers maintenance OPEX via hot-swap architecture, and prevents cross-module circulating current in multi-rectifier parallel arrays.
Cellular telecom macro base stations, distributed BBU/RRU power enclosures, fiber central offices (FTTx/OLT), railway signaling and SCADA power, power utility substation DC panels, and edge telecom data cabinets.
| Key specifications | Value |
|---|---|
| Rated Output Power | 1740W (30A @ 58V DC) |
| DC Output Voltage | -48VDC (-42V ~ -58V) |
| Rated Output Current | 30A Continuous Output |
| AC Input Voltage Range | 90V AC ~ 300V AC |
| Cooling Method | Internal Temperature-Controlled Intelligent Variable Speed Fan |
| Power Conversion Efficiency | ≥ 92% |
| Power Factor & THD | ≥ 0.99 (Full Load Power Factor) |
| Operating Temperature Range | -40°C to +70°C |
Delta
The Delta DPR2900B-48 is an industry-standard 1U hot-swappable telecom rectifier module delivering -48V 50A (2900W) at >95% efficiency, engineered for extreme reliability across global wireless stations.
Carrier-grade industrial high-frequency switch-mode power supply designed for high-efficiency AC/DC conversion, bus regulation, and intelligent battery management.
The Delta DPR4830-D-DCE is an ultra-compact telecom rectifier delivering -48V 30A (1740W), engineered for micro-sites, DAS repeaters, and space-constrained indoor telecom wall boxes.
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