| Sign In | Join Free | My insurersguide.com | 
 | 
| Categories | Telecom Rectifier System | 
|---|---|
| Brand Name: | Telecom Rectifier Unit (TRU) | 
| Model Number: | ET2305000 | 
| Certification: | CE UL FCC | 
| Place of Origin: | China | 
| MOQ: | 100 | 
| Price: | USD50-USD500 | 
| Payment Terms: | T/T, Western Union | 
| Supply Ability: | 5000 | 
| Delivery Time: | 20~35 | 
| Packaging Details: | wooden case | 
| Output type: | Single | 
| Input voltage: | 220V | 
| Output power: | 51 - 100W | 
| Output voltage: | 48V | 
| Output current: | 15A | 
| Output frequency: | 50/60Hz | 
| Application: | telecom | 
| Type: | Telecom Rectifier,rectifier system | 
| Efficiency: | 95% | 
| Warranty: | two years | 
| Size: | 560*460*520mm | 
| Product name: | rectifier system,Telecom Power system | 
| Weight: | 2.6KG | 
| Color: | Black | 
| Working temperature: | -40℃~+75℃ | 
| Material: | Aluminum Shell | 
| Mount: | 19inch 1U rack mount | 
| Rectifier module: | 48VDC/50A*4PCS | 
| Output: | 24VDC or 48VDC | 
| Company Info. | 
| Tianjin Estel Electronic Science and Technology Co.,Ltd | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Product Overview
MR483000HG2B-GS is a power supply device that converts standard AC voltage into
stable 48Vdc for communication power supply systems.
For a larger load capacity, the rectifier modules can be connected
in parallel, or an additional independent monitoring module can be
used for intelligent control.
The rectifier module is a plug-in modular unit designed to be
compatible with racks and cabinets.
| Item | Configuration | 
|---|---|
| Operating temperature | –10℃ ~ +75℃ | 
| Note: Normal operation at –10℃ ~ 55℃; | |
| Power derated to 80% from 55℃ to 65℃, and to 40% from 65℃ to 75℃. | |
| Startup at –40℃ possible after input is powered on. | |
| Storage temperature | –40℃ ~ +75℃ | 
| Relative humidity | 5% ~ 95% (no condensation) | 
| Altitude | ≤4000m (derated 1℃ per 200m above 3000m) | 
Input parameters
Operating Voltage: 85Vac to 290Vac
Frequency: 45Hz ~ 66Hz (Rated: 50/60Hz)
Input current: ≤18A
Power factor: ≥0.99 (at 220Vac, 20%~100% load)
THD: ≤5% (at 50%~100% load)
Output parameters
Output voltage: 42VDC ~ 58VDC (Rated: 53.5VDC)
Linear power derating:
3000W from 176VAC to 290VAC
Derates to 1250W from 175VAC to 85VAC
Voltage regulation: ≤±0.6%Vo
Ripple and noise: ≤200mVp-p (≤20MHz bandwidth)
Standby power: ≤4W
Startup time: 3s ~ 8s
Hold-up time: >10ms
Phone noise: ≤2mV
Wideband noise voltage:
≤50mV (3.4kHz ~ 150kHz)
≤20mV (0.15MHz ~ 30MHz)
Dimensions: 41.5mm (H) × 106.4mm (W) × 291mm (D)
Weight: <2kg
Cooling: Forced air cooling with built-in fan (linear speed control)
Graphs and curves included in original manual (Output current, Input voltage derating, Temperature derating, Efficiency curve)
Protection features
Input over-voltage:
290~300Vac → warning light, output normal
300Vac → output off
Under-voltage:
<80±5Vac → output off
80~90Vac → auto recovery
Output over-voltage:
Internal: 58.5VDC–60.5VDC, lockout, recover by repowering
External: >63VDC for >500ms, lockout
Current limiting: See output curve
Short-circuit: Long-time tolerance, auto-recovery
Over-temperature: Protected
Certifications: CE, UL, CB
UL/EN/IEC 62368-1
EMC: EN 55032 Class B, EN 55035, IEC 61000-3-2/3
Lightning protection: 5kA (8/20μs)
MTBF: >500,000 hours @ 25℃
Noise: ≤55dB(A) @ 40℃
Gold finger pin layout
| Pin | Function | 
|---|---|
| 1, 2 | Output 48V– | 
| 3, 4 | Pre-charge | 
| 5, 6 | Output 48V+ | 
| 7 | Group address | 
| 8 | Inner address | 
| 13 | CANL | 
| 14 | CANH | 
| 31, 32 | Protection ground | 
| 33, 34 | AC Neutral | 
| 35, 36 | AC Phase | 
Indicators on the front panel:
Power (Green)
On: Normal
Off: No input / input abnormal
4Hz flash: Manual query status
Alarm (Yellow)
Off: No alarm
On: Current limit
0.5Hz flash: Comm loss
4Hz flash: Address error
Fault (Red)
On: No output / internal fault
Over-voltage lock: Unplug for 1 minute to reset







|   | 
 Customizable Indoor Power Distribution Cabinet For Data Centers And Power Supply Stations Grid
                                                                                        
                                                        
                        
                        
                        
                                                            Customizable Indoor Power Distribution Cabinet For Data Centers And Power Supply Stations Grid
                                                    
                        
                     8U Hot Pluggable Telecom Rectifier System For Indoor Cabinet With  Wide Input Voltage Range 85-300Vac
                                                                                    
                        
                        
                        
                                                            8U Hot Pluggable Telecom Rectifier System For Indoor Cabinet With  Wide Input Voltage Range 85-300Vac
                                                    
                        
                     Hybrid Power Cabinet With Solar Energy And Power System 40U 19inch Standard Cabinet
                                                                                    
                        
                        
                        
                                                            Hybrid Power Cabinet With Solar Energy And Power System 40U 19inch Standard Cabinet
                                                    
                        
                     Thermostatic Steel Outdoor Equipment Cabinet Waterproof Dustproof
                                                                                    
                        
                        
                        
                                                            Thermostatic Steel Outdoor Equipment Cabinet Waterproof Dustproof
                                                    
                        
                     100Ah 48VDC Lithium Iron Phosphate Battery for Telecom Outdoor Cabinet
                                                                                    
                        
                        
                        
                                                            100Ah 48VDC Lithium Iron Phosphate Battery for Telecom Outdoor Cabinet
                                                    
                        
                     Outdoor Telecom Cabinet Lithium Iron Battery 150Ah 48VDC Rack Mounted
                                                                                    
                        
                        
                        
                                                            Outdoor Telecom Cabinet Lithium Iron Battery 150Ah 48VDC Rack Mounted
                                                    
                        
                     200Ah 48VDC Rack Mounted Lithium Iron Phosphate Battery For Telecom Outdoor Enclosure
                                                                                    
                        
                        
                        
                                                            200Ah 48VDC Rack Mounted Lithium Iron Phosphate Battery For Telecom Outdoor Enclosure
                                                    
                        
                     9U Large Capacity Embedded Power Supply Standard 19-inch Rack Built-in Cabinet
                                                                                    
                        
                        
                        
                                                            9U Large Capacity Embedded Power Supply Standard 19-inch Rack Built-in Cabinet
                                                    
                        
                     40U Standard 19inch Outdoor Enclosure Hybrid Power Cabinet With Solar Energy And Power System
                                                                                    
                        
                        
                        
                                                            40U Standard 19inch Outdoor Enclosure Hybrid Power Cabinet With Solar Energy And Power System
                                                    
                        
                     10U Uninterruptible Power Supply 36KW 48VDC Rectifier System Switch Mode For Telecom Backup
                                                                                    
                        
                        
                        
                                                            10U Uninterruptible Power Supply 36KW 48VDC Rectifier System Switch Mode For Telecom Backup