Delta DPR4850C High-Efficiency Telecom Switch-Mode Rectifier Module (-48V 50A 3000W Compact DC Power) - Official Front View
DeltaModel: DPR4850C

Delta DPR4850C High-Efficiency Telecom Switch-Mode Rectifier Module (-48V 50A 3000W Compact DC Power)

The Delta DPR4850C is a rugged, field-proven -48V/50A switch-mode rectifier module delivering 3000W of regulated DC power for wireless cell sites, access networks, and telecom cabinets. Featuring high power density, thermal fan management, and live hot-plug capability, it integrates seamlessly with Delta PSC supervisory controllers.

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Rated Output Voltage & Current
-48VDC (-42V ~ -58V)
AC Input Voltage Range
85Vac - 300Vac (Ultra-Wide Operational Window) VAC
Overall System Efficiency
≥ 95.5%
Power Factor & THD
PF ≥ 0.99, THD ≤ 5% Active Power Factor Correction
Cooling System & Noise Level
Intelligent DC Fan Forced-Air, Auto-Speed Regulated
Hot-Swap Mechanical Protection
Keyed Blind-Mate Connector, Live Hot-Swap Replaceable

What this product is

What this product is

The Delta DPR4850C is a rugged, field-proven -48V/50A switch-mode rectifier module delivering 3000W of regulated DC power for wireless cell sites, access networks, and telecom cabinets. Featuring high power density, thermal fan management, and live hot-plug capability, it integrates seamlessly with Delta PSC supervisory controllers.

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

  • Ultra-Wide AC Window: Maintains uninterrupted operation down to 85Vac in rural or unstable grid environments with linear derating.
  • Live Hot-Plug Reliability: Gold-plated blind-mate connectors ensure spark-free online insertion and extraction with zero downtime.
  • Full Circuit Self-Protection: Built-in AC over/undervoltage shutdown, DC overvoltage latching, thermal foldback, and short-circuit protection.
  • Low EMI Emissions: Certified to EN 55022 Class B standards, preventing high-frequency noise interference with co-located RF gear.

Technical specifications

Key specificationsValue
Rated Output Voltage & Current-48VDC (-42V ~ -58V)
Overall System Efficiency≥ 95.5%
Cooling System & Noise LevelIntelligent DC Fan Forced-Air, Auto-Speed Regulated
Hot-Swap Mechanical ProtectionKeyed Blind-Mate Connector, Live Hot-Swap Replaceable
AC Input Voltage Range85Vac - 300Vac (Ultra-Wide Operational Window) VAC
Overall System EfficiencyUp to 96.2% (Gold Standard)
Power Factor & THDPF ≥ 0.99, THD ≤ 5% Active Power Factor Correction
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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