1U Rack Mount 3000W DC Power Supply 220V 48V Telecom Dual Rectifier System for Industry 60A Output Current 1500W Power 48VDC

EVS4860-H1A2-

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Input Voltage:220 V
Output Current:60 A
Output Voltage:48 V
Model Number:EVS4860-H1A2
Brand Name:EVS
Place of Origin:Guangdong, China
Application:Industry, Laboratory, Industrial Equipment, Machines, Battery Charging
Efficiency:0.95
Output Frequency:50/60 Hz
Output Type:Single
Protection:Short Circuit Protection, Overcurrent Protection, Overvoltage Protection, Over Temperature Protection, Overloading Protection, Over Power Protection, Undervoltage Protection, Overcharging Protection
Type:AC-DC, DC-DC
Apllication:Telecom power
anti-theft:Module loss report
Monitoring module:hot swappable
Features Dry contact:webrowser SNMP
Mounting Type:19 Rack mounted
Output Power:60A
Color:customized
Packing:Carton Box
Certificate:CE RoHS

product details

Product Description

EVS Telecom Dual Rectifier 1u dc power supply

EVSPOWER1u dc power supply in Telecom Power: Redundancy, Reliability, and Efficiency

1. Introduction
In mission-critical telecom and industrial applications, uninterrupted power supply is non-negotiable. Dual rectifier switching power systems have emerged as a gold standard for 48V DC power distribution, combining redundancy, high efficiency, and scalability. This article explains how dual rectifier systems work, their advantages, and why they are indispensable for modern infrastructure.

2. What is 1u dc power supply?
A dual rectifier system integrates two independent rectifier modules in parallel within a single power shelf. Each rectifier converts AC input to regulated 48V DC output while sharing the load or operating in redundancy mode.

Key Components:
AC-DC Rectifiers: High-efficiency switching modules (e.g., 3kW/6kW units).
Controller: Manages load sharing, fault detection, and battery charging.
Hot-Swap Design: Modules can be replaced without system shutdown.

3. Why Dual Rectifiers? Key Advantages
3.1 Redundancy for Maximum Uptime
N+1 Redundancy: If one rectifier fails, the other instantly takes the full load, ensuring zero downtime.
Critical for 5G/Edge Sites: Supports always-on networks for IoT, smart cities, and real-time communication.

3.2 High Efficiency and Energy Savings
Advanced Switching Topology: >95% efficiency (e.g., LLC resonant conversion).

Dynamic Load Sharing: Optimizes power distribution between rectifiers to minimize losses.
Example:
A 10kW dual-rectifier system saves 500+ kWh/year compared to legacy linear systems.

3.3 Scalability and Flexibility
Modular Design: Add rectifiers as power demands grow (e.g., from 3kW to 30kW).

Wide Input Range: Supports 90–300V AC, ideal for unstable grids in emerging markets.

4. Applications in Telecom and Beyond
4.1 Telecom Base Stations
Powers Remote Radio Units (RRUs), BBUs, and fiber optic equipment.
Integrates seamlessly with -48V battery backup systems.

4.2 Data Centers
Supports Open Compute Project (OCP) 48V DC architectures.
Reduces energy costs by eliminating multiple AC-DC conversions.

4.3 Industrial IoT and Renewable Systems
Compatible with solar/wind hybrid setups for off-grid sites.

This1u dc power supply is for commucication,
Output voltage -54V,Output current 0-60A;Its features include input over/under-voltage protection, output over-current protection, output over-voltage protection.

EVS1u dc power supply ,dc power supply , with the following features and functions:

5.1u dc power supplyInformation

1.Telecom power system 48v dc rectifier Power Supply with Modbus Snmp
2. Hot swappable and Plug and Play;
3 .N+1 redundancy,each module available in 30A@48Vdc;
4 .AC /DC distribution system for AC input/ DC output distribution and protection;
5. RS485, Modbus,SNMP communication for remote control;
6.Compact design and embedded modular system, support power system and module sleep, efficient mixing, energy saving;
7.High Efficiency with low EMI. CE Safety and EMC certification
8. the system has high power factor greater than 0.98;
9. there are input under voltage, input voltage, output voltage, output current limiting, output short circuit, over temperature protection;
10.Small size, height 1U, 2*48V30A evspower rectifier module

6.1u dc power supplyapplication

* Small scale program controlled exchanges

* Access network

* Transmission equipment

* Mobile communication

* Satellite communication ground station

* Microwave communication

7.Telecom power system Electrical Characteristics:

1	evspower 1u dc power supply Input Characteristics
No.	Items			Technical Specifications	Unit				Remarks
1.1	Input rated voltage			200—240	Vac
1.2	Input voltage range			90—290	Vac				OR 100-400VDC
1.3	Input Current			≤20	A				Lowest input voltage, rated load
1.4	inputvoltage frequency			50/60	Hz
1.5	Power factor			≥0.99					rated input voltage, rated load
1.6	Input Shock Current			≤30	A				264Vac
2	Output Characteristics
No.	Items			Technical Requirements	Unit				Remarks
2.1	Output Rated Voltage			54	Vdc
2.2	Output current range			0—60	A				Inutpu voltage:176—290Vac.
				0—30	A				Inutpu voltage:90—175Vac
2.3	Output voltage range			53.5	Vdc
2.4	Efficiency			≥96%					220Vac input,output 54Vdc/60A.
				≥92%					110Vacinput ,output54Vdc/30A.
2.5	Output ripple & noise			≤200	mVp-p				Rated load, frequency band is limited to 20MHz
2.6	Turn-on output delay			3—8	S				Vin=220Vac
2.6	Output rising time			≤200	mS				Output voltage rises from 10% to 90%, rated load.
2.7	Turn on/off overshoot			≤±5	%Vo
2.8	Combined regulation			≤±1%
2.10	Transient Response	Overshoot		≤ ±5	%Vo				5%—50%—25% or 50%—75%—50% load change.
		Recovery time		≤ 200	µS
2.11	Phone weighed noise voltage			≤2	mV
2.12	p-pk value noise			≤400mV					0—300KHz
2.13	Wide frequency noise voltage			≤100	mV				3.4—150KHz
				≤30					0.15—30000KHz
2.14	Disperse noise			≤5	mV				3.4—150KHz
				≤3					150—200KHz
				≤2					200—500KHz
				≤1					500—30000KHz
3	Battery Management Characteristics
No.	Items		Technical Requirements		Unit		Remarks
3.1	Floating charge current limiting		10±1.5		A
3.2	Battery undervoltage protection point		42.5—43.5		V		Cut load,protect battery
4	Other Characteristics
No.	Items		Technical Requirements			Unit		Remarks
4.1	MTBF		100,000			H

Why choose us

Why choose us?

We regard clients' satisfaction as our top task, products' quality as the basis of development, cost-saving as our competitive advantage. we are looking forward to cooperating with you in the near future. Please Contact us now.

Whom we are ?

Shenzhen EVS Industrial Company Limited, is located in Shenzhen of China. EVS is a leading manufacturer of Telecom power supply, Electric Power supply, dc dc converter, Integrated Power Cabinet , power inverter and Power supply customization service.we specialize in this power field for 15 years and 10 years on the export business.

Are you a factory or trading company?

Yes, we are date cable manufacturer,supply OEM/ODM service.

How about your After sales-service?

1.Guarantee time: one year
2.Spare parts: 0.3% spare parts will be shipped with your order.
3.Return policy: we can exchange goods if quality problem.

Our Payment & Logistics?

1.Payment terms L/C,T/T,Western Union,MoneyGram,Paypa
2.Shipping terms: Ship,DHL, UPS, FEDEX, TNT, EMS
3.Sample order delivered within 24 hours , order lead time within 3 days

What can you get from us?

1.Excellent products (unique design, strict quality control )
2.Great service(OEM,ODM, after-sales services, fast delivery)
3.Professional business consultation.

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