How does ESR-48/50DE perform under light operational loads (e.g., 20% to 30%)?

Thanks to digital resonant topology, the ESR-48/50DE maintains >94% efficiency even at 20% load, ensuring flat, optimal energy savings during off-peak nighttime telecom traffic. For bench test verification, pinout diagrams, and custom warranty terms, contact our engineering desk via WhatsApp +86 17621197907.

How to configure and operate the smart rectifier hibernation energy-saving mode?

Enable 'Eco Mode / Hibernation Cycling' in the Delta CSU controller. The controller monitors DC load current, dynamically resting redundant rectifiers while periodically cycling units to balance service life. For bench test verification, pinout diagrams, and custom warranty terms, contact our engineering desk via WhatsApp +86 17621197907.

Can the internal cooling fan be replaced independently if bearing wear occurs?

Yes. The internal fan uses a modular connector harness. After removing the unit and front bezel, the genuine DC fan assembly can be quickly swapped out. For bench test verification, pinout diagrams, and custom warranty terms, contact our engineering desk via WhatsApp +86 17621197907.

DeltaМодель: ESR-48/50DE

Delta ESR-48/50DE Ultra-High Efficiency Telecom Switch-Mode Rectifier Module (-48V 50A >96% Efficiency)

The Delta ESR-48/50DE is a green energy-saving telecom rectifier module achieving over 96% peak conversion efficiency, delivering -48V 50A (up to 2900W) with digital resonant soft-switching technology.

Цена определяется конфигурацией и объёмом проекта

Запросить предложение

Nominal Output Voltage: -48V DC (Range: -42V to -58V)
Rated Output Current: 50A
Peak Conversion Efficiency: >96.2% Ultra-High Efficiency
AC Input Range: 85V to 300V AC (Nominal 220V/230V)
Input Power Factor: >0.99 (Rated full load)
Cooling & Form Factor: Variable-Speed Fan / Subrack Hot-Swap

Что это за продукт

As the core energy engine of Delta modern telecom power systems, this module converts AC power into telecom-grade stabilized DC, cutting conversion power losses by over 50%.

Какую задачу решает

Helps telecom operators and data centers lower PUE, significantly cuts waste heat generation to reduce cooling overhead, and lowers total cost of ownership (TCO).

Для кого и каких условий

Widely deployed in green 5G cell sites, edge micro data centers, central office energy retrofits, and high-density telecom power racks.

Ключевые преимущества

Industry-Leading Peak Efficiency: Peak efficiency exceeds 96.2%, meeting top-tier global green energy standards and minimizing heat dissipation.
Smart Multi-Unit Hibernation: Supports intelligent supervisory sleep cycling to keep active rectifiers operating at peak efficiency points.
High PF and Low Harmonics: Power factor >0.99 and THD <5%, preventing harmonic pollution to upstream transformers and generators.
Effortless Hot-Swap Capability: Standard guide-rail mechanism enables single-technician replacement within 10 seconds without site downtime.

Технические характеристики

Ключевые параметры	Значение
Nominal Output Voltage	-48V DC (Range: -42V to -58V)
Rated Output Current	50A
AC Input Range	85V to 300V AC (Nominal 220V/230V)
Input Power Factor	>0.99 (Rated full load)
Cooling & Form Factor	Variable-Speed Fan / Subrack Hot-Swap
Peak Conversion Efficiency	>96.2% Ultra-High Efficiency