The Delta DPR 48/50-D is an industrial-grade, 1U hot-swappable telecom rectifier power module engineered for carrier-grade -48V DC power distribution systems, delivering 2900W (50A) nominal output with ≥92.5% efficiency, active power factor correction, and an ultra-wide 90V to 300V AC input voltage range.
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A 1U rack-mount switch-mode power converter (SMR) featuring high-frequency LLC resonant topology, active PFC circuitry, and integrated micro-controller management for standard telecom power shelves.
Eliminates system downtime caused by unstable rural grid voltages (supports brownout operation down to 90V AC), minimizes rack footprint with 1U high power density, and prevents single-point failure via robust autonomous current sharing.
Cellular wireless macro sites, 5G distributed power enclosures, central office optical transmission nodes, and enterprise-grade critical DC backup power plants.
| Key specifications | Value |
|---|---|
| Rated Output Power | 2900W (50A @ 58V DC) |
| DC Output Voltage | -48VDC (-42V ~ -58V) |
| Rated Output Current | 50A Continuous Heavy Duty Output |
| AC Input Voltage Range | 90V AC ~ 300V AC |
| Cooling Method | Built-in Temperature-Controlled Exhaust Fan |
| Power Conversion Efficiency | ≥ 92.5% |
| Physical Dimensions | 41.5 (1U) × 125.5 × 269.9 mm |
| 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.
The Delta DPR4850-D-DCE is a high-density digital AC/DC rectifier converting single-phase AC to clean -48V DC power with active power factor correction and auto
