ESTEL (GUANGDONG) TECHNOLOGY CO., LTD.
| Input Capacity | 1×63A/2P |
| Thd | < 1,5 % at resistive load |
| Supply Ability | 5000 |
| Package | cartons |
| Dc Current Max | 53.5 VDC / 43 - 58 VDC |
| Industrial Ac Input | Single Phase For Each Rectifiers |
| Payment Terms | T/T, Western Union |
| Certifications | ISO9001, CE, RoHS |
| Dc Output Breakers | 4 |
| Delivery Time | 20-30days |
| Poweroutput | 10kW - 100kW |
| Protectionfeatures | Overvoltage, Overcurrent, Short circuit, Overtemperature |
| Packaging Details | Wooden case |
| Efficiency | ≥ 90% |
| Ac Frequency | 50Hz, 60Hz or last synced |
| Frequency | 45 – 66 Hz |
| Load Protection | LLVD, BLVD |
| Solar Array | 24pcs 580W solar panels |
| Dc Load Breakers | 30 postions |
| Certification | CE UL FCC |
| Place of Origin | China |
| Brand Name | ESTEL |
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Product Specification
| Input Capacity | 1×63A/2P | Thd | < 1,5 % at resistive load |
| Supply Ability | 5000 | Package | cartons |
| Dc Current Max | 53.5 VDC / 43 - 58 VDC | Industrial Ac Input | Single Phase For Each Rectifiers |
| Payment Terms | T/T, Western Union | Certifications | ISO9001, CE, RoHS |
| Dc Output Breakers | 4 | Delivery Time | 20-30days |
| Poweroutput | 10kW - 100kW | Protectionfeatures | Overvoltage, Overcurrent, Short circuit, Overtemperature |
| Packaging Details | Wooden case | Efficiency | ≥ 90% |
| Ac Frequency | 50Hz, 60Hz or last synced | Frequency | 45 – 66 Hz |
| Load Protection | LLVD, BLVD | Solar Array | 24pcs 580W solar panels |
| Dc Load Breakers | 30 postions | Certification | CE UL FCC |
| Place of Origin | China | Brand Name | ESTEL |
| High Light | 48V telecom power system with 300A ，5U 18kW DC power system ，telecom power system with rectifiers | ||
The ET48300-005 is a 5U rack-mounted DC telecom power system developed for communication sites that need dependable -48V power, organized load distribution and battery backup in a compact cabinet space. It is positioned as an 18kW / 300A class solution, using six 3kW rectifier modules to provide stable DC output for transmission equipment, access devices, switches and base-station loads.
This model is suitable for sites using 220VAC single-phase input, making it easier to deploy in equipment rooms or access network cabinets where three-phase power is not available. The system integrates AC input protection, AC surge protection, rectification, battery breakers, LLVD/BLVD load outputs, DC SPD, LCD monitoring and communication terminals into one front-service platform. The front panel layout allows technicians to check breaker status, controller alarms and wiring terminals without removing the system from the rack.
18kW modular capacity: Six 3kW rectifiers support flexible configuration and online maintenance.
300A DC output class: Suitable for medium to high-load telecom power distribution.
Single-phase AC input: Designed for 220VAC sites with 1 × 100A/2P input protection.
Clear load separation: LLVD and BLVD branches help divide priority and non-priority equipment.
Battery protection: Two 125A battery breakers support backup battery connection and isolation.
Surge protection: Integrated AC SPD and DC SPD improve system resistance to transient overvoltage.
Remote monitoring support: LCD controller with RS485, SNMP, dry contacts, AI/DI signal inputs.
Front maintenance design: Rectifier and controller are hot-pluggable for faster field replacement.
The ET48300-005 is suitable for wireless base stations, transmission networks, fiber access sites, enterprise communication rooms, microwave stations, telecom cabinets and backup DC power systems requiring stable -48V distribution with battery management.
Model: ET48300-005
Type: 3–18kW 5U Subrack
Maximum Current: 300A
Dimensions: 482.0(W) × 350.6(D) × 5U(H)
Weight: ≤22kg without rectifiers
Installation: 19-inch rack or cabinet
Cabling: Top inlet and top outlet
Protection Level: IP20
AC Input: 220VAC single phase
Input Capacity: 1 × 100A/2P
Frequency: 45–65Hz, rated 50/60Hz
AC SPD: 20kA/40kA, 8/20μs
DC Output: -43V to -58VDC, rated -53.5VDC
Maximum Capacity: 18kW, 6 × 3kW
Battery Breakers: 2 × 125A/1P
LLVD: 2 × 32A/1P + 2 × 40A/1P + 3 × 63A/1P
BLVD: 2 × 6A/1P + 2 × 10A/1P + 2 × 16A/1P
DC SPD: 10kA/20kA, 8/20μs
Rectifier Efficiency: >96%
Power Factor: ≥0.99
Operating Temperature: -40°C to +75°C
Humidity: 5%–95%, non-condensing
Altitude: 0–4000m
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
1999
Total Annual:
15000000-20000000
Employee Number:
300~350
Ecer Certification：
Verified Supplier
Introduction ESTEL is a professional manufacturer and solution provider for a wide range of telecom power equipment - Rectifier Power Systems, Hybrid Energy Telecom Power Systems, Integrated Outdoor Telecom Cabinets, Smart Power Distribution Units, and Surge Protection Devices. Its manuf... Introduction ESTEL is a professional manufacturer and solution provider for a wide range of telecom power equipment - Rectifier Power Systems, Hybrid Energy Telecom Power Systems, Integrated Outdoor Telecom Cabinets, Smart Power Distribution Units, and Surge Protection Devices. Its manuf...
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