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 autonomous load sharing.
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Standard hot-swappable 2.9kW telecom rectifier module for Delta power shelves.
Eliminates power disturbances and cuts site electricity bills with high efficiency in harsh grid environments.
Wireless cellular base stations, optical remote shelters, utility SCADA rooms, and railway wayside racks.
| Key specifications | Value |
|---|---|
| DC Output Voltage | -48VDC (-42V ~ -58V) V DC |
| Rated Output Current | 50 A |
| AC Input Voltage Range | 80 ~ 300 V AC |
| Power Conversion Efficiency | ≥ 95.5% |
| Overall System Efficiency | Up to 96.2% (Gold Standard) |
| Acoustic Noise | ≤ 55 dBA (at 25°C ambient load) |
| Ingress Protection Rating | IP20 (Indoor Dust & Finger Proof) |
| Physical Dimensions | 132 × 85 × 287 mm |
| Operating Temperature Range | -40°C ~ +75°C |
| Dielectric Withstand Voltage | 3000VAC Input to Ground (< 5mA) |
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-G-DGC is an advanced high-efficiency telecom rectifier delivering -48V 50A (2900W) with a gold-finger blind-mate interface, boasting >96% peak efficiency for carrier green energy targets.
