DC48V 750A Telecom DC Power Systems for Base Station SNMP RS485 Supported
DC48V 750A Telecom DC Power Systems for Base Station SNMP RS485 Supported
Product Overview of 48VDC 750A Base Station Rectifier Power Supply
The ET48750-M7E106 DC rack power system is a high-capacity, carrier-grade power conversion platform engineered for core telecom nodes, large-scale data centers, and mission-critical industrial facilities where power continuity is essential. It interfaces via terminal blocks—configured as L1×3, L2×2, L3×2, and N×6—to support AC inputs. The system delivers a precisely regulated DC output adjustable from –43VDC to –58VDC, with a nominal setpoint of –53.5VDC. Rated at a full 30kW output capacity, it sustains conversion efficiency above 96% even under heavy load, significantly reducing energy loss and operational expenditure.
Rectifier Module of 48VDC 750A Base Station Rectifier Power Supply
The architecture is fully modular and fault-tolerant, supporting up to ten 3000W hot-swappable rectifier modules in an N+1 or higher redundancy scheme. Each rectifier module weighs under 2kg and leverages forced-air cooling alongside advanced power factor correction (≥0.99) and very low total harmonic distortion (THDi ≤5%), ensuring grid-friendly operation and consistent power quality. The entire system is housed in a 6U-high chassis built to fit standard 19-inch racks. Front-access hot-swap maintenance and top-panel cable routing simplify installation and field service, while the IP20-rated enclosure protects against accidental contact and ingress of solid foreign objects.
Controller of 48VDC 750A Base Station Rectifier Power Supply
MC2600 is the new generation DC power controller developed by ESTEL. The controller adopts ARM32-bit Cortex-M4 CPU as primary processor. MC2600 offers many features and functions, and a morerobust, user-friendly, and easy-to-use interface. The controller provides powerful hybrid powermanagement functions, including management of diesel generator,VRLA and lithium-ion batteries andsolar modules.
Key Features
Automatic battery test,including advanced scheduledtest, constant current test and short test
Configuration file upload feature enable minimizedinstallation time
Energy saving standby function for rectifiersrealizes lower operating cost
Manages from 1 to up to 40 rectifiers
| Type | ET48750 | |||
| System | Dimension | 482.6(W)*350.0(D)*6U(H) | ||
| Weight | ≤30kg (without rectifiers) | |||
| Cooling mode | Natural cooling | |||
| Installation mode | Installed on 19-inch rack | |||
| Cabling mode | Top inlet and top outlet | |||
| Maintenance mode | Front maintenance, support module grade change | |||
| Protection level | IP20 | |||
| AC Distribution |
Input mode | Terminal block L1×3, L2×2, L3×2, and N×6 | ||
| Input frequency | 45~65Hz, rated value: 50Hz/60Hz | |||
| DC Distribution |
Output voltage | -43~-58VDC, rated value: -53.5VDC | ||
| Maximum capacity | 30kw(10*3000w, N+1 redundancy) | |||
| Battery breakers | RTN+ BATT-busbars | |||
| Load breakers |
LLVD: Circuit Breaker 6*125A/1PN + 3*≤125A/1PN (reserved slots) BLVD: RTN+GND-busbars |
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| 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 | 4 AI(3ambient temp, 1 humidity) ,8 DI | ||
| Alarm output | 7 dry contact | |||
| RS485 | Yes | |||
| SNMP | Yes | |||
| 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.) |
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