Telecom Rectifier System for Telecom with Remote Management and Control

Product Overview

The ET4860-M3I21 DC rack power system provides a high-capacity, resilient DC power solution designed specifically for telecommunications infrastructure, data center operations, and industrial applications requiring dependable DC power distribution. It accepts 220VAC single-phase input and delivers a stable DC output adjustable between –43VDC to –58VDC, with a nominal operating point of –53.5VDC. Offering a maximum output capacity of 6kw, this system reliably supports high-demand installations while achieving power conversion efficiency exceeding 96%.

Featuring a modular and redundant design, the system supports up to 2*3000W rectifier modules configured for N+1 redundancy, with each compact module weighing under 2kg. The rectifiers utilize forced-air cooling, achieve a near-unity power factor (≥0.99), and maintain low total harmonic distortion (THDi ≤5%) for efficient and clean power conversion. With front-access maintenance, top-panel cabling, and IP20 ingress protection, the 1U rack-mountable chassis emphasizes operational safety, ease of service, and straightforward integration into standard 19-inch cabinets.

System

• Dimension: 482.0(W) × 350.0(D) × 1U(H)

• Weight: ≤10kg (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: 220VAC single-phase

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

DC Distribution

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

• Maximum capacity: 6kW(2*3kw, N+1 redundancy)

• Battery breakers: 1U push-in terminal*2

• Load breakers: BLVD: 1U push-in terminal*2

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

• Signal input: 3 AI (3 ambient temp), 7 DI

• Alarm output: 6 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.)