Delta DPR4850-D-DCE High Efficiency Telecom Rectifier Module -48V 50A 2900W
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
DeltaModel: Delta DPR 2900B-48
Delta DPR 2900B-48 Industrial Telecom Rectifier Module 53.5V 50A 2900W Single Phase AC Input
The Delta DPR 2900B-48 is an industrial-grade, hot-swappable single-phase switch-mode rectifier module engineered with advanced resonant soft-switching topology and active PFC. Supporting a wide 90V AC to 300V AC input range, it delivers a nominal 53.5V DC (adjustable 42V to 58V DC) and up to 2900W/50A of clean, ultra-low ripple DC power tailored for telecommunications and critical infrastructure.
Pricing is confirmed by project configuration and quantity
Request a quote- Rated Output Power
- 2900W (50A @ 58V DC)
- Nominal DC Output Voltage
- 42V DC ~ 58V DC (Nominal 53.5V DC)
- Rated Output Current
- 50A Continuous Constant Current Output
- AC Input Voltage Range
- 90V AC ~ 300V AC (Nominal 220V AC)
- Power Conversion Efficiency
- ≥ 92% (Industrial Grade Robust Efficiency)
- Cooling Method
- Built-in Intelligent DC Exhaust Fan
What this product is
What this product is
A high-density standardized card-type power unit comprising an active PFC boost stage and an isolated high-frequency DC-DC converter. Its rear interface utilizes an integrated blind-mate blind-insertion connector combining AC input, high-current DC output, analog load share, and digital CAN bus signaling, backed by intelligent temperature-controlled forced-air front exhaust.
What problem it solves
Eliminates network downtime caused by unstable grids, brownouts, and voltage surges, while mitigating harmonic distortion fed back into local transformers; its smooth constant-power and constant-current output envelope protects battery arrays from excessive thermal stress during post-discharge bulk recharging cycles.
Who and where it is for
Telecommunication central offices (CO), cellular macro base stations (BTS/NodeB), Delta DPS 2900 series rack expansion, enterprise IT data centers, railway signaling automation, and industrial SCADA DC distribution networks.
Core advantages
- Ultra-wide 90V AC to 300V AC operating input ensures steady performance across severely degraded power grids
- High power factor (PF ≥ 0.99) and low total harmonic distortion (THD ≤ 5%) comply with international grid regulations
- True hot-plug design with autonomous active current sharing for seamless N+1 redundant parallel scaling
- Engineered with intelligent fan speed regulation and a -40°C to +70°C operating window for harsh climate durability
Technical specifications
| Key specifications | Value |
|---|---|
| Rated Output Power | 2900W (50A @ 58V DC) |
| Nominal DC Output Voltage | 42V DC ~ 58V DC (Nominal 53.5V DC) |
| Rated Output Current | 50A Continuous Constant Current Output |
| AC Input Voltage Range | 90V AC ~ 300V AC (Nominal 220V AC) |
| Power Conversion Efficiency | ≥ 92% (Industrial Grade Robust Efficiency) |
| Cooling Method | Built-in Intelligent DC Exhaust Fan |
| Output Power Factor PF | ≥ 0.99 (High Power Factor Low Grid Pollution) |
| Operating Temperature | -40°C to +70°C |
Applications
01
Telecom-grade core network switching hubs and 4G/5G wireless outdoor cabinets
02
Replacement and capacity expansion for Delta DPS 2900B modular DC power systems
03
Industrial electrical substation automation and utility emergency DC backup loops
04
Off-grid hybrid renewable energy storage systems requiring ruggedized AC-DC rectification
Frequently asked questions
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