Can the ESR-48/60A A operate standalone without a supervisory controller?

Yes. When disconnected from a system controller, the module operates independently with default hardware-set -53.5V output, feeding DC loads and float-charging batteries immediately upon AC power-on. For bench test verification, pinout diagrams, and custom warranty terms, contact our engineering desk via WhatsApp +86 17621197907.

How to diagnose repeated AC input fuse failures on this module?

Use a megohmmeter to check whether input MOV varistors have suffered surge breakdown shorting to chassis ground. Inspect incoming utility lines for extreme voltage spikes, and service the input stage if necessary. For bench test verification, pinout diagrams, and custom warranty terms, contact our engineering desk via WhatsApp +86 17621197907.

How to verify that the load sharing bus is operating correctly during high-current operation?

Observe individual module output currents on the supervisory controller. At >50% load, current deviation across active rectifiers should be within 1.5A. A zero-current unit indicates a disconnected bus pin or protection state. For bench test verification, pinout diagrams, and custom warranty terms, contact our engineering desk via WhatsApp +86 17621197907.

DeltaМодель: 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.

Цена определяется конфигурацией и объёмом проекта

Запросить предложение

Nominal Output Voltage: -48V DC (Adjustable: -42V to -58V)
Rated Output Current: 60A Rated Full Load
Rated Output Power: 3200W
AC Input Range: 88V to 300V AC (Nominal 220V/230V)
Current Share Imbalance: < 3% (50% to 100% load)
Cooling & Form Factor: Forced Air Cooling / Subrack Hot-Swap

Что это за продукт

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.

Какую задачу решает

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.

Для кого и каких условий

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

Ключевые преимущества

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.

Технические характеристики

Ключевые параметры	Значение
Nominal Output Voltage	-48V DC (Adjustable: -42V to -58V)
Rated Output Current	60A Rated Full Load
Rated Output Power	3200W
AC Input Range	88V to 300V AC (Nominal 220V/230V)
Current Share Imbalance	< 3% (50% to 100% load)
Cooling & Form Factor	Forced Air Cooling / Subrack Hot-Swap