18kW High Efficiency Rack-mount DC48V Telecom Rectifier System LLVD BLVD
18kW High Efficiency Rack-mount DC48V Telecom Rectifier System LLVD BLVD
Product Overview of 18kW DC48V Telecom Rectifier System
The 18kW rack-mounted DC power system is a high-capacity solution designed for telecom networks, data centers, and industrial facilities requiring reliable DC supply. It supports 220V single phase input, delivering a stable –43 to –58VDC output with a rated value of –53.5VDC. With a maximum capacity of 18kW, this system ensures sufficient power for large-scale applications while maintaining efficiency above 96%.
The system integrates up to 6 rectifier modules(N+1 redundancy), each rated at 3000W and weighing ≤2kg. These modules feature forced cooling, high power factor ≥0.99, and THD ≤5%, ensuring clean and stable DC power conversion. With front maintenance, top cable entry, and IP20 protection, the design prioritizes safety, serviceability, and ease of integration into 19-inch racks.
DC distribution includes 2*125A battery breakers and 1*LLVD & 1*BLVD, providing flexible and secure load management. The intelligent controller supports 3 analog inputs, 7 digital inputs, 6 dry contact alarms, and remote communication via RS232/485 and SNMP. Local monitoring is enabled through an LCD display.
Built for challenging environments, the unit operates from –40℃ to +65℃, withstands 5–95% non-condensing humidity, and maintains stable operation at altitudes up to 3000m. With its modular architecture and robust performance, the 18kW 5U DC power system is an ideal choice for critical infrastructure requiring scalable and dependable energy solutions.
Application of 18kW DC48V Telecom Rectifier System
Telecom Base Station Power Distribution
Data Center Cabinet (PDU / Power Distribution)
Central Office (CO) Equipment Rack
Remote Radio Unit (RRU) / BBU Power Feeding
Network Switch / Router / Firewall Power Rack
Indoor Distribution System (IDS) Power Hub
Edge Computing Node Power Distribution
5G Micro/Pico Site Power Supply
AC Power Distribution of 18kW DC48V Telecom Rectifier System
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Input mode: 220V single phase
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Input frequency: 45–66Hz, rated value: 50Hz/60Hz
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AC SPD: 20kA/40kA, 8/20μs
DC Power Distribution of 18kW DC48V Telecom Rectifier System
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Output voltage: –43 ~ –58VDC, rated value: –53.5VDC
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Maximum capacity: 18kW(6*3kw, N+1 redundancy)
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Battery breakers: 2*125A
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Load breakers:
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LLVD1: 3*16A/1P+3*32A/1P;
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BLVD: 2*63A/1P+4*100A*1P
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DC SPD: 10kA, 8/20μs
Controller of 18kW DC48V Telecom Rectifier System
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Model: MC2600
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Signal input: 3 AI (2 Battery temp., 1 ambient temp), 7 DI
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Alarm output: 6 dry contact
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Communication port: RS232/485, SNMP
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Display mode: LCD
Rectifier of 18kW DC48V Telecom Rectifier System
| Rectifier | 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 | |||
Environment
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Operating temperature: –40℃ ~ +65℃ (full output below 50℃)
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Storage temperature: –40℃ ~ +70℃
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Operating humidity: 5% ~ 95% (non-condensing)
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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.)
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