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 ESR-48/56B FC
Delta ESR-48/56B FC Telecom Rectifier Module 48V 56A 3000W
The Delta ESR-48/56B FC is an industrial hot-swappable switch-mode rectifier module employing active PFC and high-frequency soft-switching topologies, engineered to convert AC mains (90V-300V AC) into stable -48V DC nominal output at up to 56A/3000W for mission-critical telecom sites.
Pricing is confirmed by project configuration and quantity
Request a quote- Rated Output Power
- 3000W Heavy Duty Output Power
- Nominal DC Output Voltage
- -48V DC (Wide Adjustment: 42V ~ 58V DC)
- Rated Output Current
- 56A Heavy Duty Constant Current Output
- Power Conversion Efficiency
- ≥ 93.5% (Full-Load Stable Efficiency)
- AC Input Voltage Range
- 90V AC ~ 300V AC (Harsh Grid Compatible)
- Cooling Method
- Built-in Temperature Controlled Smart Fan
What this product is
What this product is
A modular, hot-pluggable power conversion unit featuring high-efficiency conversion stages, comprehensive electrical protection circuits, forced cooling airflow, and a heavy-duty blind-mate backplane connector.
What problem it solves
Eliminates grid instability disruptions in remote base stations, mitigates lightning surge damages, prevents load sharing imbalances in multi-rectifier racks, and ensures continuous operation under extreme thermal conditions.
Who and where it is for
Cellular 4G/5G macro and micro base stations, central office subracks, Distributed Power Systems (DPS), enterprise telecom DC power plants, and railway signaling rooms.
Core advantages
- Ultra-wide 90V~300V AC input window ensures operational continuity on unstable utility lines
- Constant current/constant power output characteristic up to 56A continuous DC load
- Variable-speed temperature-controlled fan optimizes acoustic noise and extends MTBF
- True plug-and-play hot swap with autonomous active current sharing for N+1 redundancy
Technical specifications
| Key specifications | Value |
|---|---|
| Rated Output Power | 3000W Heavy Duty Output Power |
| Nominal DC Output Voltage | -48V DC (Wide Adjustment: 42V ~ 58V DC) |
| Rated Output Current | 56A Heavy Duty Constant Current Output |
| AC Input Voltage Range | 90V AC ~ 300V AC (Harsh Grid Compatible) |
| Power Conversion Efficiency | ≥ 93.5% (Full-Load Stable Efficiency) |
| Cooling Method | Built-in Temperature Controlled Smart Fan |
| Physical Form Factor | Compact Plug-in Metal EMI Shielded Enclosure |
| Operating Temperature | -40°C to +70°C |
Applications
01
Telecom shelter DC power system capacity expansion
02
Outdoor telecom cabinets deployed in harsh thunderstorm regions
03
Mission-critical industrial SCADA and instrumentation power racks
04
Hybrid renewable (Solar-Wind-Diesel) off-grid base station energy setups
Frequently asked questions
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