3–12kW DC Power System 5U Subrack, 220VAC Input, 43–58VDC Output, >96% Efficiency, ≤2kg Rectifier Modules, 19-Inch Rack Mount

Product Overview

The 3–12kW DC Power System 5U Subrack is a high-efficiency, compact power solution designed for telecom, data center, and industrial applications. Built for flexible rack or cabinet installation, it supports 220VAC single-phase input and provides a stable –43 to –58VDC output with a rated value of –53.5VDC. The system achieves an efficiency of over 96%, ensuring reliable performance and low energy loss.

The modular design accommodates up to four rectifier modules, each rated at 3000W with a weight of ≤2kg. Forced cooling guarantees stable operation under heavy loads, while the system maintains excellent power quality with power factor ≥0.99 and THD ≤5%. The total capacity reaches 12kW, suitable for demanding backup and distribution scenarios.

For control and monitoring, the system integrates 4 analog inputs (battery and ambient temperature), 7 digital inputs, and 6 dry contact alarm outputs. Communication is enabled via RS232/485 and SNMP, with an intuitive LCD display for local management.

Engineered for harsh environments, the unit operates within –40℃ to +65℃ (full load below 50℃), tolerates humidity from 5% to 95% non-condensing, and supports altitudes up to 3000m. Its robust design ensures long-term reliability even in challenging conditions.

With its lightweight rectifier modules, front maintenance support, and IP20 protection, this DC power system offers a cost-effective and scalable solution for operators requiring high availability, compact size, and easy serviceability.

3-12kW 5U Subrack

System

• Dimension: 482.0(W) × 350.0(D) × 5U(H)

• Weight: ≤20kg (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 capacity: 1×100A/2P

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

• AC SPD: 20kA/40kA, 8/20μs

DC Distribution

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

• Maximum capacity: 12kW (3kW × 4)

• Battery breakers: 2×63A/1P

• Load breakers: LLVD: None; BLVD: 2×63A/1P

• DC SPD: 10kA, 8/20μs

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%

Controller

• Signal input: 4 AI (3 Battery temp., 1 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.)