6U Telecom DC48V Rectifier Power System with Integrated Remote Control

Product Overview

Engineered for demanding telecommunications, data center, and industrial applications, the ET48400-M5E86B DC Rack Power System delivers resilient, high-capacity DC power. It accepts a 380VAC three-phase input, providing a stable, adjustable output from –43VDC to –58VDC (typically –53.5VDC) at a maximum capacity of 24kW and efficiency exceeding 96%.

The modular design supports N+1 redundancy with up to eight 3000W rectifier modules, each offering high-efficiency conversion with a power factor ≥0.99 and THDi ≤5%. Housed in a service-optimized 6U chassis with front access and top-panel cabling, the system simplifies installation and maintenance. Its DC distribution panel includes 4*100A/1P battery circuit breakers, scalable LLVD, and BLVD for flexible power management.

A dedicated controller with analog/digital inputs and configurable alarm relays, alongside RS232/485 and SNMP interfaces, provides comprehensive local and remote monitoring. Designed to operate reliably in extreme environments (–40℃ to +65℃, up to 95% RH, 3000m altitude), this system offers a robust and scalable power foundation for critical infrastructure.

System

• Dimension: 482.0(W) × 350.0(D) × 6U(H)

• Weight: ≤25kg (without rectifiers)

• Cooling mode: Natural cooling

• Installation mode: Installed on 19-inch rack or inside the cabinet

• Cabling mode: Top inlet and top outlet

• Maintenance mode: Front maintenance, support module grade change

• Protection level: IP20

AC Distribution

• Input mode: 380VAC three-phase, 3*63A/1P+N

• Input frequency: 45–66Hz, rated value: 50Hz/60Hz

DC Distribution

• Output voltage: –43 ~ –58VDC, rated value: –53.5VDC

• Maximum capacity:24kW(8*3kw, N+1 redundancy)

• Battery breakers: 4*100A/1P

• Load breakers: 

• LLVD*2: Used with distribution box

• BLVD: 4*16A/1P+4*10A/1P

Rectifier

• Input voltage: 85VAC ~ 300VAC, rated 220VAC

• Efficiency: >96%

• Rated power: 3000W (176–300VAC)

• Working temperature: –40℃ ~ +75℃ (full output below 50℃)

• Dimension: 106.5mm(W) × 286mm(D) × 41.5mm(H) (1U/H)

• Weight: ≤2kg

• Cooling mode: Forced cooling

• Power factor: ≥0.99

• THD: ≤5%

• DC output: –43 ~ –58VDC, rated –53.5VDC, maximum 55A

Controller

• Model: MC2600

• Signal input: 2 AI (2 ambient temp), 8 DI

• Alarm output: 8 dry contact

• Communication port: RS232/485, SNMP

• 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.)