DC48V 18kw Rectifier System Switch Power Supply for Telecom Networks
Product Overview of DC48V 18kw Rectifier System Switch Power Supply
The ET48450-M7F65 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 380VAC three-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 18kW, 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 6*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 5U rack-mountable chassis emphasizes operational safety, ease of service, and straightforward integration into standard 19-inch cabinets.
The DC distribution panel is equipped with 3*125A/1P battery circuit breakers and includes a LLVD and a BLVD functionality for secure and flexible power management. System intelligence is provided by a dedicated controller featuring 4 analog sensor inputs, 8 digital status inputs, and 8 configurable dry-contact alarm relays. Remote monitoring and management are enabled via RS232/485 and SNMP interfaces, while an integrated LCD display allows for local status viewing and configuration.
Power of DC48V 18kw Rectifier System Switch Power Supply
AC
Distribution |
Input mode
|
Three-phase 380V 63A/4P |
| Input frequency |
45~65Hz, rated value: 50Hz/60Hz |
| AC SPD |
20kA/40kA, 8/20μs |
DC
Distribution |
Output voltage |
-43~-58VDC, rated value: -53.5VDC |
| Maximum capacity |
18kw(6*3kw, N+1 redundancy) |
| Battery breakers |
3*125A/1P |
| Load breakers |
LLVD: 2*32A/1P+2*40A/1P+2*63A/1P
BLVD: 1*6A/1P+2*10A/1P+2*16A/1P
|
| DC SPD |
10kA/20kA, 8/20μs |
Controller of DC48V 18kw Rectifier System Switch Power Supply
|
Controller
|
Model |
MC2900 |
| Signal input |
4 AI(3ambient temp, 1 humidity) ,8 DI |
| Alarm output |
8 dry contact |
| RS485 |
Supported |
| SNMP |
Supported |
| Display mode |
LCD |
Rectifier Module of DC48V 18kw Rectifier System Switch Power Supply
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Input voltage: 85VAC ~ 300VAC, rated 220VAC
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Efficiency: >96%
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Rated power: 3000W (176–300VAC)
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Working temperature: –40℃ ~ +75℃ (full output below 50℃)
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Dimension: 106.5mm(W) × 286mm(D) × 41.5mm(H) (1U/H)
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Weight: ≤2kg
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Cooling mode: Forced cooling
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Power factor: ≥0.99
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THD: ≤5%
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DC output: –43 ~ –58VDC, rated –53.5VDC, maximum 55A
Environment of DC48V 18kw Rectifier System Switch Power Supply
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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.)
Details of DC48V 18kw Rectifier System Switch Power Supply
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DC48V 18kw Rectifier System Switch Power Supply for Telecom Networks Images
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