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Delta ESR-48/60A A High-Power Telecom Switch-Mode Rectifier Module (-48V 60A 3200W) - Official Front View
DeltaModel: ESR-48/60A A

Delta ESR-48/60A A High-Power Telecom Switch-Mode Rectifier Module (-48V 60A 3200W)

The Delta ESR-48/60A A is a high-power switch-mode telecom rectifier module delivering nominal -48V DC, 60A maximum output current, and 3200W rated power, engineered for large switching centers and IDC facilities.

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Nominal DC Output Voltage
-48VDC (-42V ~ -58V)
Rated DC Output Current
-48VDC (-42V ~ -58V)
Rated Output VA / Wattage
3200W
AC Input Voltage
88V to 300V AC (Nominal 220V/230V)
Current Share Imbalance
< 3% (50% to 100% load)
Cooling & Form Factor
Forced Air Cooling / Subrack Hot-Swap

What this product is

What this product is

This unit populates large-scale Delta floor-standing power cabinets or modular subracks, paralleling to form systems delivering hundreds to thousands of amperes for core telecom infrastructure.

What problem it solves

Meets demanding power requirements of modern 5G macro hubs and cloud data centers, reducing the slot count needed in power racks and optimizing spatial density.

Who and where it is for

Engineered for central telecom switching offices, cloud computing DC power rows, 5G aggregation hubs, and heavy-duty industrial automation facilities.

Core advantages

  • Heavy-Duty Current Output: Single module delivers continuous 60A (up to 3200W), reducing the total number of rectifier units needed in a cabinet.
  • Optimized Heavy-Load Thermal Design: Engineered airflow and dual low-loss heatsinks ensure low thermal stress and extended MTBF under full load.
  • Autonomous Digital Load Sharing: True peer-to-peer current-share bus keeps inter-module imbalance under 3%, eliminating single-point controller vulnerabilities.
  • Carrier-Grade EMI & Surge Immunity: Complies with rigorous international telecom standards for lightning surge resilience and low conducted electromagnetic noise.

Technical specifications

Key specificationsValue
Rated DC Output Current-48VDC (-42V ~ -58V)
Rated Output VA / Wattage3200W
AC Input Voltage88V to 300V AC (Nominal 220V/230V)
Current Share Imbalance< 3% (50% to 100% load)
Cooling & Form FactorForced Air Cooling / Subrack Hot-Swap
Nominal DC Output Voltage-48VDC (-42V ~ -58V)
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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