Delta DPR2900B-48 Telecom Power Rectifier Module (48V 50A 2900W Hot-Swap) - Isometric 45-Degree Angled View
DeltaModel: DPR2900B-48

Delta DPR2900B-48 Telecom Power Rectifier Module (48V 50A 2900W Hot-Swap)

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.

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Rated Output VA / Wattage
2900W (50A Nominal Output)
Nominal DC Output Voltage
-48VDC (-42V ~ -58V)
AC Input Voltage
85V - 300V AC Wide Range
Peak Energy Efficiency
≥ 95.5%
Chassis Form Factor
132 × 85 × 287 mm
Cooling System Architecture
Internal Smart Speed-Controlled DC Fan

What this product is

What this product is

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.

What problem it solves

Resolves power grid instability, excessive OPEX energy dissipation, battery degradation, and rack footprint constraints.

Who and where it is for

5G cellular cell sites, core telecom DC plants, AI data centers, transport networks, and critical industrial DC UPS.

Core advantages

  • Delta Tier-1 Industrial Craftsmanship: Premium magnetic components and low failure rate across millions of operational hours.
  • 1U Ultra-Slim Power Density: Compact 1U profile preserves valuable rack space for servers and baseband units.
  • Autonomous Digital Current Sharing: Automatic load balancing across paralleled units ensures high availability.
  • Severe Grid Fluctuation Defense: Integrated input surge suppressors handle extreme spikes in rural electrical grids.

Technical specifications

Key specificationsValue
AC Input Voltage85V - 300V AC Wide Range
Chassis Form Factor132 × 85 × 287 mm
Rated Output VA / Wattage2900W (50A Nominal Output)
Nominal DC Output Voltage-48VDC (-42V ~ -58V)
Cooling System ArchitectureInternal Smart Speed-Controlled DC Fan
Peak Energy Efficiency≥ 95.5%
Overall System EfficiencyUp to 96.2% (Gold Standard)
Acoustic Noise≤ 55 dBA (at 25°C ambient load)
Ingress Protection RatingIP20 (Indoor Dust & Finger Proof)
Dielectric Withstand Voltage3000VAC Input to Ground (< 5mA)

Applications

01

Telecom 4G/5G macro cellular base stations and distributed remote power sites

02

Enterprise-grade cloud data center mission-critical -48V DC power distribution lineups

03

Utility power grid dispatch centers and high-voltage substation DC switchgear rooms

04

Railway transit signaling, automated train control, and communications equipment rooms

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