ESTEL (GUANGDONG) TECHNOLOGY CO., LTD.
| Payment Terms | T/T |
| Supply Ability | 5000set per month |
| Delivery Time | 25~35 days |
| Packaging Details | wooden case |
| Input voltage | AC220V, single phase |
| Output voltage | DC48V |
| Output current | 10A, 16A, 20A, 40A |
| Type | Telecom Rectifier, DC rectifier system,telecom rectifier for switching power supply |
| Rectifier module | 3*1.74(N+1) |
| Size | 482.6mm*350mm*2U |
| Weight | ≤15kg（without rectifier module） |
| Color | Black |
| Working temperature | -40℃~+75℃ |
| Material | Aluminum Shell |
| Mount | 19inch Rack Mounting |
| Warranty | 1 Year |
| Brand Name | ESTEL |
| Model Number | ET4890-M3F32 |
| 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 |
| Input voltage | AC220V, single phase | Output voltage | DC48V |
| Output current | 10A, 16A, 20A, 40A | Type | Telecom Rectifier, DC rectifier system,telecom rectifier for switching power supply |
| Rectifier module | 3*1.74(N+1) | Size | 482.6mm*350mm*2U |
| Weight | ≤15kg（without rectifier module） | Color | Black |
| Working temperature | -40℃~+75℃ | Material | Aluminum Shell |
| Mount | 19inch Rack Mounting | Warranty | 1 Year |
| Brand Name | ESTEL | Model Number | ET4890-M3F32 |
| Certification | CE UL FCC | Place of Origin | China |
| High Light | Modular Telecom DC power system ，SNMP remote power management ，Web-based telecom rectifier system | ||
Product Overview of 2U Modular Telecom DC Power System Integration
The ET4890-M3F32 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 9kW, 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 3*1.74kw 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 2U rack-mountable chassis emphasizes operational safety, ease of service, and straightforward integration into standard 19-inch cabinets.
The DC distribution panel is equipped with 1*63A 1P battery circuit breakers and includes Battery Low Voltage Disconnect (BLVD) functionality for secure and flexible power management. System intelligence is provided by a dedicated controller featuring 2 analog sensor inputs, 8 digital status inputs, and 2 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.
Application of 2U Modular Telecom DC Power System Integration
Remote unattended monitoring stations
Industrial control cabinets
Office environments requiring silent operation
Hybrid energy sites with solar/wind integration
Lithium-ion battery-based backup systems
Technical Specification of 2U Modular Telecom DC Power System Integration
| AC Power Distribution |
Input mode
|
220VAC single-phase, 40A/2P | ||
| Input frequency | 45~65Hz, rated value: 50Hz/60Hz | |||
| DC Power Distribution |
Output voltage | -43~-58VDC, rated value: -53.5VDC | ||
| Maximum capacity | 5.22kw(3*1.74kw, N+1 redundancy) | |||
| Battery breakers | 1*63A/1P | |||
| Load breakers |
BLVD: 2*10A/1P+2*16A/1P+2*20A/1P+1*40A/1P |
|||
| Rectifier Module | Input voltage | 85VAC～300VAC, rated 220VAC | ||
| Efficiency | >94% | |||
| Rated power | 1740W(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 33A | |||
Controller of 2U Modular Telecom DC Power System Integration
Model: MC2600
Signal input: 2 AI (2 ambient temp), 8 DI
Alarm output: 2 dry contact
Communication port: RS232/485, SNMP
Display mode: LCD
Application Environment of 2U Modular Telecom DC Power System Integration
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.)
Views of 2U Modular Telecom DC Power System Integration
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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