DC48V 3U BTS Telecom Rectifier Systems with RS485 Remote Monitoring
Product Overview of 3U BTS Telecom Rectifier System
The ET48300-M5E63 is a DC rack power system developed by ESTEL, 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 (compatible for single-phase and three-phase) 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%.
The DC distribution panel is equipped with 1*250A battery circuit breakers and includes LLVD & BLVD functionality for secure and flexible power management. System intelligence is provided by a dedicated controller featuring 3 analog sensor inputs, 7 digital status inputs, and 6 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.
AC Specification of 3U BTS Telecom Rectifier System
Input mode: 380VAC, compatible with both single-phase and three-phase configurations
Input frequency: 45Hz to 65Hz (rated 50Hz/60Hz)
DC Specification of 3U BTS Telecom Rectifier System
Output voltage: -43V to -58VDC (rated -53.5VDC)
Maximum capacity: 18kW (6 x 3kW rectifier modules, N+1 redundancy)
Battery breaker: 1 x 250A
Load breakers of 3U BTS Telecom Rectifier System
LLVD: 1 x <125A/1PN (reserved)
BLVD: 6 x ≤63A/1PN + 2 x ≤125A/1PN (reserved)
Rectifier Module of 3U BTS Telecom Rectifier System
Input voltage: 85VAC ~ 300VAC (rated 220VAC)
Efficiency: >96%
Rated power: 3000W (176~300VAC)
Cooling mode: Forced cooling
Power factor: ≥0.99
THD: ≤5%
DC output: -43 ~ -58VDC (rated -53.5VDC), maximum 55A
Specifications of 3U BTS Telecom Rectifier System
| Type |
ET48300-M5E63 |
| System |
Dimension |
482.6(W)*350.0(D)*3U(H) |
| Weight |
≤15kg (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, compatible for single-phase and three-phase |
| Input frequency |
45~65Hz, rated value: 50Hz/60Hz |
DC
Distribution |
Output voltage |
-43~-58VDC, rated value: -53.5VDC |
| Maximum capacity |
18kW(6*3kw, N+1 redundancy) |
| Battery breakers |
1*250A |
| Load breakers |
LLVD: 1*＜125A/1PN(reserved)
BLVD: 6*≤63A/1PN+2*≤125A/1PN(reserved)
|
| 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 |
| 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.) |
Structure of 3U BTS Telecom Rectifier System
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