ESTEL (GUANGDONG) TECHNOLOGY CO., LTD.
| Payment Terms | T/T |
| Supply Ability | 5000set per month |
| Delivery Time | 25~35 days |
| Packaging Details | wooden case |
| Output type | Single phase |
| Output voltage | DC48V |
| Application | telecom,utility,Industrial Automation,Electric Power Transmission,BTS |
| Type | Telecom Rectifier, DC rectifier system,telecom rectifier for switching power supply |
| Efficiency | 96% |
| Warranty | 1 Year |
| Size | 482.6mm*350mm*1U |
| Product name | rectifier system,Telecom power supply,Telecom Power system |
| Weight | ≤10kg（without rectifier module） |
| Color | Black |
| Working temperature | -40℃~+75℃ |
| Material | Aluminum Shell |
| Mount | 19inch Rack Mounting |
| Rectifier module | 2*3000W |
| Brand Name | ESTEL |
| Model Number | ET4860-M3I21 |
| Certification | CE UL FCC |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 5000set per month |
| Delivery Time | 25~35 days | Packaging Details | wooden case |
| Output type | Single phase | Output voltage | DC48V |
| Application | telecom,utility,Industrial Automation,Electric Power Transmission,BTS | Type | Telecom Rectifier, DC rectifier system,telecom rectifier for switching power supply |
| Efficiency | 96% | Warranty | 1 Year |
| Size | 482.6mm*350mm*1U | Product name | rectifier system,Telecom power supply,Telecom Power system |
| Weight | ≤10kg（without rectifier module） | Color | Black |
| Working temperature | -40℃~+75℃ | Material | Aluminum Shell |
| Mount | 19inch Rack Mounting | Rectifier module | 2*3000W |
| Brand Name | ESTEL | Model Number | ET4860-M3I21 |
| Certification | CE UL FCC | Place of Origin | China |
| High Light | Telecom rectifier system with remote management ，Network rectifier system with control ，Telecom power system with remote monitoring | ||
Product Overview
The ET4860-M3I21 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 220VAC single-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 6kw, 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 2*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 1U rack-mountable chassis emphasizes operational safety, ease of service, and straightforward integration into standard 19-inch cabinets.
System
Dimension: 482.0(W) × 350.0(D) × 1U(H)
Weight: ≤10kg (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: 220VAC single-phase
Input frequency: 45–66Hz, rated value: 50Hz/60Hz
DC Distribution
Output voltage: –43 ~ –58VDC, rated value: –53.5VDC
Maximum capacity: 6kW(2*3kw, N+1 redundancy)
Battery breakers: 1U push-in terminal*2
Load breakers: BLVD: 1U push-in terminal*2
Rectifier
Input voltage: 85VAC ~ 300VAC, rated 220VAC
Efficiency: >96%
Rated power: 3000W (176–300VAC)
Working temperature: –40℃ ~ +75℃ (full output below 50℃)
Dimension: 106.5mm(W) × 286mm(D) × 41.5mm(H) (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.)
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
2002
Total Annual:
15 Million-20 Million
Employee Number:
101~200
Ecer Certification：
Verified Supplier
Introduction ESTEL(GUANGDONG)TECHNOLOGY CO., LTD, located in China, is a professional supplier of integrated outdoor telecom cabinet and temperature control solutions for outdoor telecom base station. As a science and technology innovative company, we engage in the R&D, manufa... Introduction ESTEL(GUANGDONG)TECHNOLOGY CO., LTD, located in China, is a professional supplier of integrated outdoor telecom cabinet and temperature control solutions for outdoor telecom base station. As a science and technology innovative company, we engage in the R&D, manufa...
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