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-48/56CN
Delta ESR-48/56CN 3000W 56A Telecom Switch Rectifier Module (-48V DC)
The Delta ESR-48/56CN is a high-performance, 3000W industrial-grade hot-swappable switch-mode rectifier module engineered for carrier-grade telecom macro stations and DC power systems. Featuring an advanced soft-switching topology and active digital PFC, it converts ultra-wide AC inputs ranging from 88V AC to 300V AC into a highly stabilized -48V DC (adjustable 42V~58V) output at 56A with an efficiency exceeding 94%, delivering superior power density and rugged environmental resilience.
Pricing is confirmed by project configuration and quantity
Request a quote- Rated Output Power
- 3000W High Efficiency Output Power
- Nominal DC Output Voltage
- -48V DC (Adjustment Range: 42V ~ 58V DC)
- Rated Output Current
- 56A (-48V DC Continuous Constant Current)
- Power Conversion Efficiency
- ≥ 94% (Industrial Robust Reliable Efficiency)
- AC Input Voltage Range
- 88V AC ~ 300V AC (Nominal 220V AC)
- Cooling Method
- Built-in Temperature Controlled DC Exhaust Fan
What this product is
What this product is
The Delta ESR-48/56CN utilizes a compact plug-in metal form factor integrating active power factor correction, high-frequency isolated conversion stages, and digital DSP control. It features a blind-mating rear connector carrying AC power, DC busbars, and communication lines, with a front-facing extraction handle and intelligent fan grille.
What problem it solves
Eliminates telecom power outage risks caused by severe utility voltage fluctuations, lightning surges, and harsh environments in remote sites, while cutting cooling loads and OPEX costs through ≥94% high-efficiency conversion.
Who and where it is for
4G/5G macro cellular sites, broadband access nodes, microwave transmission stations, IDC DC distribution frames, utility substation DC panels, and rail transit automation systems.
Core advantages
- Ultra-Wide Input Grid Range: Operates reliably from 88V AC to 300V AC, ensuring continuous operation on erratic power grids.
- High Efficiency & Energy Savings: Delivers ≥94% conversion efficiency, significantly lowering heat dissipation and operating costs.
- Intelligent Thermal Management: Industrial operating temperature span of -40°C to +70°C with smart speed-controlled cooling fans.
- Hot-Swappable N+1 Redundancy: Seamless online replacement and active current sharing ensure 99.999% system availability.
Technical specifications
| Key specifications | Value |
|---|---|
| Rated Output Power | 3000W High Efficiency Output Power |
| Nominal DC Output Voltage | -48V DC (Adjustment Range: 42V ~ 58V DC) |
| Rated Output Current | 56A (-48V DC Continuous Constant Current) |
| AC Input Voltage Range | 88V AC ~ 300V AC (Nominal 220V AC) |
| Power Conversion Efficiency | ≥ 94% (Industrial Robust Reliable Efficiency) |
| Cooling Method | Built-in Temperature Controlled DC Exhaust Fan |
| Physical Form Factor | Standard Plug-in Hot-Swappable Module Design |
| Operating Temperature | -40°C to +70°C |
Applications
01
Telecom operator outdoor macro cell sites and transmission stations
02
Enterprise IDC data center -48V DC central distribution cabinets
03
Railway signaling, communications, and trackside emergency power
04
Utility substation SCADA systems and renewable energy remote RTU panels
Frequently asked questions
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