Delta ESR-48/56G Ultra-High Efficiency Rectifier Module (48V 56A 3200W Gold) - Rear Backplane & Terminals View
DeltaModel: ESR-48/56G

Delta ESR-48/56G Ultra-High Efficiency Rectifier Module (48V 56A 3200W Gold)

The Delta ESR-48/56G is Delta's flagship ultra-high-efficiency telecom rectifier delivering -48V 56A (3200W) with an outstanding 96.8% peak efficiency, engineered for high-demand 5G cellular base stations.

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Rated DC Output Current
56A Continuous High Current
Rated Output VA / Wattage
3200W High Power Density
Peak Energy Efficiency
>96.8% World-Class Gold Efficiency
Nominal DC Output Voltage
-48V DC (Adjustable -42V ~ -58V)
AC Input Voltage Range
85V - 300V AC Wide Grid Tolerance
Cooling Architecture
Long-Life Brushless Speed-Regulated Fan

What this product is

What this product is

The Delta ESR-48/56G is Delta's flagship ultra-high-efficiency telecom rectifier delivering -48V 56A (3200W) with an outstanding 96.8% peak efficiency, engineered for high-demand 5G cellular base 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

  • 96.8% Flagship Efficiency: Slashes energy conversion losses, reducing site heat output and electricity OPEX.
  • 56A High-Capacity Output: +12% more capacity than standard 50A rectifiers, ideal for peak AAU power demands.
  • Full DSP Digital Control: Microsecond transient response guarantees ultra-stable DC voltage regulation.
  • Tool-Free Hot-Swap Ergonomics: Quick-action latch allows instant single-handed field swap without tools.

Technical specifications

Key specificationsValue
Rated DC Output Current56A Continuous High Current
Rated Output VA / Wattage3200W High Power Density
Nominal DC Output Voltage-48V DC (Adjustable -42V ~ -58V)
AC Input Voltage Range85V - 300V AC Wide Grid Tolerance
Cooling ArchitectureLong-Life Brushless Speed-Regulated Fan
Peak Energy Efficiency>96.8% World-Class Gold Efficiency

Applications

01

4G/5G Telecom Cell Sites & Distributed Power Systems

02

Carrier Core Network Facilities & IDC DC Plants

03

Industrial Automation & Utility Substation DC UPS

Frequently asked questions

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