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ESTEL (GUANGDONG) TECHNOLOGY CO., LTD.
ESTEL(GUANGDONG) TECHNOLOGY CO., LTD We are the professoinal supplier of outdoor telecom cabinet, air conditioner, heat exchanger, and telecom power system.
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19 Inches DC48V Rectifier Solution with LLVD BLVD for Telecommunication

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19 Inches DC48V Rectifier Solution with LLVD BLVD for Telecommunication

Brand Name : ESTEL

Certification : ISO9001, CE, 3C, FCC

Place of Origin : Shenzhen, China (Mainland)

MOQ : 1

Price : 735-2864 usd

Payment Terms : L/C, D/A, D/P, T/T, Western Union

Supply Ability : 3,000 sets per month

Delivery Time : 25-30 working days

Packaging Details : wooden case/carton

Size : 482mm*350mm*5U(W*D*H)

Weight : ≤20kg (without rectifiers)

Input Voltage : 220VAC single-phase

Input Current : 63A(max)

Output Voltage : -48VDC (-42 To -58VDC)

Installation : 19'' rack mounted

Protection : LLVD, BLVD

Package : Wooden case

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19 Inches 5U DC48V Rectifier Solution with LLVD BLVD for Telecommunication

Product Overview

The ET-Series 5U is a carrier-grade, high-density DC power platform designed to ensure uninterrupted operation for telecommunications central offices, mid-to-large data centers, and industrial facilities. Operating from dual 220VAC single-phase inputs (with one serving as a hot backup), it delivers a tightly regulated DC output adjustable from –43V to –58V, typically set at –53.5V. With a maximum output of 12kW and conversion efficiencies exceeding 96% across its typical load range, the system significantly lowers both energy consumption and associated cooling costs.

Engineered for service continuity, the system supports up to twelve hot-swappable 3000W rectifier modules, enabling N+1 or higher redundancy. Each module weighs less than 2kg and features forced-air cooling, active Power Factor Correction (≥0.99), and low Total Harmonic Distortion (THDi ≤5%) to ensure grid compatibility and stable output. Housed in a 7U 19-inch rack-mountable chassis with an IP20 rating, the unit allows front-access hot-swapping, simplifying maintenance. Rear copper busbars offer a low-impedance, high-current connection path.

Integrated DC distribution with LLVD and BLVD enables prioritized load shedding, helping to preserve critical battery reserves during outages. The advanced system controller provides comprehensive monitoring and programmable logic via 3 AI, 7 DI, and 6 DO ports. Remote management is supported through RS232, RS485, and SNMP interfaces, giving operators full visibility into alarms, performance, and rectifier status. A front-panel LCD allows for convenient on-site access and configuration.

The rectifier modules deliver reliable performance in extreme conditions, operating without derating across a temperature range of –40°C to +65°C and relative humidity from 5% to 95% (non-condensing). Full-rated power is maintained at altitudes up to 3000 meters. Combining scalable redundancy, intelligent load management, and rugged construction, the ET-Series provides a future-ready DC power foundation for mission-critical applications where downtime is not an option.

Specification

Type Telecom Rectifier System
System Dimension 482.0W)*350.0(D)*5U(H)
Weight ≤20kg (without rectifiers)
Cooling mode Natural cooling
Installation mode Installed on 19-inch rack
Cabling mode Top inlet and top outlet
Maintenance mode Front maintenance, support module grade change
Protection level IP20
AC
Distribution

Input mode

 single-phase 220VAC
Input breaker 2*63A 1P, (one for backup)
Input frequency 45~65Hz, rated value: 50Hz/60Hz
SPD 20/40KA, 8/20us
DC
Distribution		 Output voltage -43~-58VDC, rated value: -53.5VDC

Output capacity

(Maximun)

 12kw(4*3kw, N+1 redundancy)

Battery breaker

 2*125A 1P circuit breaker
Load breaker

LLVD: 2*80A/1P+2*63A/1P

BLVD: 1*63A/1P+2*32A/1P+4*16A/1P
Rectifier Module Input voltage 85VAC～300VAC, rated 220VAC
Efficiency >96%
Rated power 3000W(176~300VAC)
Working temperature -40℃~+75℃(fully output below 50℃)
Dimension 106.5mm(W)×286mm(D)×41.5mm(1U/H)
Weight ≤2kg
Cooling mode Forced cooling
Power factor ≥0.99
THD ≤5%
DC output –43 ~ –58VDC, rated –53.5VDC, maximum 55A
Controller Signal input 3 AI(3ambient temp) , 7 DI
Alarm output 6 dry contact
RS232 Supported
RS485 Supported, 2*RS485
SNMP Supported
Display mode LCD
Environment Operating
temperature		 -40℃ ~ +65℃ (full output below 50℃)
Storage temperature -40℃~+70℃
Operating humidity 5%~95%(non-condensing)
Altitude 0~3000m(If the altitude is within the range of 2000m to 3000m, the maximum operating
temperature decreases by 1℃ as the altitude increases by 200m.)


19 Inches DC48V Rectifier Solution with LLVD BLVD for Telecommunication


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19 inches telecom rectifier solution

      

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