Remote Control 48V DC Power Supply For Telecommunications Equipment
Product Details:
Place of Origin: | SHENZHEN CHINA |
Brand Name: | HRD OR OEM |
Certification: | CE |
Model Number: | 48VDC 50A |
Payment & Shipping Terms:
Minimum Order Quantity: | 10 |
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Price: | USD 150-280/PCS |
Packaging Details: | Standard for export |
Supply Ability: | 100pcs/month |
Detail Information |
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EFFICENCY: | Above 95% | INPUT: | 90-290VAC |
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HOTWAP: | YES | PARALLEL: | YES |
PROTECTION: | Input Over-voltage , Over-voltage Protection,Over Temperature | Model: | 48VDC 50A |
Highlight: | adjustable dc power supply,48 volt dc power supply |
Product Description
High power density DC module
EV4850M2 rectifier Module
Input: 90-290Vac; output : 43-58Vdc;Capacity:2900W
Perfect Application
48Vdc distributed system
Ethernet
Inter-changer
LAN(local area network)
Server
Indoor wireless network
Telecommunications equipment
Features:
u Compact structure, power density up to 23.5W/in3
u Output voltage adjustable 43-58Vdc, default 53.5V
u Wide working temperature range: -40~+45°C, (extended optional: +45~+65°C)
u Power factor correction ≥0.98
u RS485 communication interface
u Input over-voltage protection
u Output over-voltage protection
u Output over-current protection
u Over temperature alarm and protection
u Parallel via bus current equalizing
u Remote control On/Off
u Hot swap
u Comply to UL1 60950, CSA2C22.2 60950-00, VDE30805 IEC60950 requirements
u CE4 marking complies with 73/23/EEC and 93/68/EEC directives
u High efficiency, >95%
1.Specification:
Input | |||||
Parameter | MIN. | Classic | MAX. | UNIT | Remark |
Input voltage | 90 | 110/220 | 290 | Vac | Long rime bearing with 320VAC, no damage |
Input frequency | 45 | 50/60 | 65 | Hz | Rated load |
Input current | 18.5 | A | 176VAC full load | ||
PF | 0.98 | Rated input /rated load | |||
Power conversion | 151 | 155 | 159 | Vac | Capacity decrease from 2900W to 1200W |
146 | 150 | 154 | Vac |
Output | |||||
Parameter | MIN. | Classic | MAX. | UNIT | Remark |
Output voltage | 43 | 53.5 | 58 | Vdc | Settable by monitor(condition :without load) |
Output current | 0 | 50 | 53 | A | |
accuracy | ±0.6 | % | |||
Ripple Value(Max) | 200 | mV | In the rated input/output, plus one 0.1uF ceramic capacitor and one 10uF high frequency electrolytic capacitor each, the bandwidth is 20MHz. | ||
Output capacity | 2900 | 2950 | W | Input range within 154-290V | |
1200 | W | Input range within 90-154V | |||
Output efficiency | 95 | 95.6 | % | 220V AC input ,25%-75%load | |
86 | % | 110V AC input range | |||
Dynamic response overshoot | ±5 | % | |||
Dynamic response time | 200 | us | 25%-50%-25% or 50%-75%-50% load change, jump rate 0.1A/us, transition period 4ms, equal upper and lower half cycles. | ||
Start up time | 3 | 10 | S | The rated input voltage is switched on until the output voltage reaches 42VDC; To start output, it requires to use the pre-limit current function. | |
ON/OFF overshoot | ±5 | % | |||
Unbalance level | ±5 | 176-290Vac,50%-100% load | |||
Telephone weight noise | 2 | mV | |||
Broadband noise voltage |
100 30 |
mV |
(3.4KHz~150KHz) (150KHz~30MHz) |
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Discrete noise |
5 3 2 1 |
mV |
3.4-150KHz 150-200KHz 200-500KHz 500-30000KHz |
Protection | ||||||
Parameter | MIN. | Classic | MAX. | UNIT | Remark | |
Input overvoltage protection | 300 | 310 | 320 | Vdc | Self-recovery, restore voltage 10V | |
Input overvoltage protection recovery point | 290 | Vdc | ||||
Input undervoltage protection | 75 | 80 | 85 | Vdc | Self-recoverable | |
Input undervoltage protection recovery point | 90 | Vdc | ||||
Output overvoltage protection point | 59 | 60 | 61 | V | Locked up | |
Output current limit protection | 54 | A | Self recovery | |||
Short circuit protection | Long-term short circuit; self-healing | A | Self recovery | |||
Power over temperature protection | Automatic recovery at ambient temperature 60°C | C |
Environment | |||||
Parameter | MIN. | Classic | MAX. | UNIT | Remark |
Operating temperature | -40 | 65 | °C | ||
Transportation environment temperature | -40 | 70 | °C | ||
Storage temperature | -40 | 70 | °C | ||
Humidity | 5 | 95 | % | Non-condensation | |
Altitude | 0 | 4000 | m | 3000-4000m, use high temperature derating under ambient conditions, drop 1°C for every 200m increase | |
Seismic level | 4 | Zone | |||
Atmospheric pressure | 70 | 106 | KPa | ||
Noise | 45 | 55 | dB | Noise is proportional to fan speed, load size, and ambient temperature | |
Sleep power consumption | 4 | W | |||
Remark: At 45°C, the module can output the maximum output power without over-temperature protection; when it is higher than 45°C, the module power is automatically derated. When it rises to 65°C, the module is over-temperature protected. |
EMC and others | |
Parameter | Standard |
Radiated Emission (CE) | EN55022 - Class A |
Conducted Emission (RE) | Input :EN55022 - Class A output :Class A |
Electrostatic discharge |
EN/IEC 61000-4-2 Contact discharge ± 6KV, Air discharge ± 8KV, Criterion B; Contact discharge ± 8KV, Air discharge ± 10KV, Criterion R Contact discharge ±2KV, criterion R |
Harmonic emission | EN/IEC61000-3-2 CLASS A |
Radiated immunity | EN/IEC 61000-4-3 Level 3 (10 V/m). |
Conducted immunity | EN/IEC 61000-4-6 Level 3 (10 V/m). |
Fast transient burst | EN/IEC 61000-4-4 Level 3 (2 kV, 5 kHz repeating) |
Surge | EN/IEC 61000-4-5 Level 3 Criterion: B,L-L :±2KV,L-G:±4KV |
Lightning impact No failure No damage |
EN/IEC61000-4-5 Level 4 (common mode 4kV, differential mode 2kV) ANSI C62.41 Level A3 (Common Mode and Differential Mode 6kV) |
Voltage Dips and Short-Time Interrupt Immunity (DIP) | EN/IEC61000-4-11 drops to 70%, 40%, 0% Ut for durations of 100ms, 20ms, 10ms at 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315 ° Each phase falls and meets criterion B |
Voltage fluctuations and flicker | EN/IEC61000-3-3 Pst ≤ 1.0; P1t ≤ 0.65; dc ≤ 3%; dmax ≤ 4%; d(t) value exceeds 3% of the time ≤ 200ms |
Reliability (Calculation) | ≤250,000 Hours |
Parallel function | N+1,unblance within ±5%; |
Voltage Dips and Short-Time Interrupt Immunity (DIP) | Sinusoidal vibration: 5 - 9Hz; Amplitude 3.5mm; 9-200Hz; Acceleration spectral density: 10m2/s3; 3 axial, sweep frequency vibration 5 times in each direction, 1OCT/MIN (1 octave/min) |
Voltage fluctuations and flicker | Random vibration: 2-10 Hz, 10 m2/s3; 10-200 Hz: 3 m2/s3; 200-500 Hz: 1 m2/s3; 3 axial directions, each 30 min. |
Insulation class | |||
Parameter | Standard | Remark | |
input Output | 3000Vac/10mA//1min | No arcing, no breakdown, with discharge tube removed during test | |
Input - Earth | 1500Vac/10mA//1min | ||
Output - Earth | 1500Vac/10mA//1min | ||
Contact current (input to ground) | ≤3.5 mA | Input 264Vac /50HZ | |
Insulation resistance | ≥10MΩ | Under normal atmospheric pressure, when the relative humidity is 90% and the test voltage is 500V DC, the insulation resistance of the power input to the output, the input to the ground, and the output to the ground shall not be lower than 10MΩ. |
Mechanical properties | |
D*W*H | 242.1*102.7*83.8mm |
Weight (kg) | ≤3.8Kg |
2.Function
Output over-voltage shutdown
If the output voltage exceeds the preset value, the rectifier will automatically shut down. Reduce the overvoltage shutoff point by approximately 1V at full load to ensure that the rectifier shuts off smoothly during overvoltage. Overvoltage shutdown voltage can be adjusted and set at the factory.
Hot-swap
When quick plugging and unplugging of the module is performed, the inside of the module should be fully discharged to ensure that the automatic restart of the module can be completed smoothly. To ensure sufficient internal discharge of the power supply, observe the rotation of the fan after the module is removed. Do not insert the module until the fan stops rotating.
Input inrush current
When the rectifier is started, the input impulse current peak value is not more than 2 times the maximum input current. At startup, the output voltage and current will rise slowly from zero, providing a soft load characteristic for the device.
Over temperature protection
When the rectifier reaches its maximum operating temperature, the rectifier gradually reduces the output current to lower its internal temperature. In extreme environments, the internal temperature of the rectifier may continue to rise even if the output current is reduced. In this case, the rectifier will be completely shut down and restart automatically after the internal temperature returns to normal.
When fully loaded, the rectifier operating temperature: -40 ~ +45 °C, the maximum operating temperature is +65 °C, in the +45 ~ +65 °C temperature rectifier under load, in order to maintain its internal temperature within the normal range.
Current equalizing
Current sharing characteristics
When sharing several rectifiers in the system, the rectifier will effectively share current. Each rectifier's hardware monitors the bus voltage and adjusts its own output current to match other rectifiers.
Forced air cooling
The rectifier constantly monitors its internal temperature, ambient temperature, and output current to adjust fan speed. This type of fan speed control reduces noise and dust build-up. If a fan stops working and cannot be restarted by the microcomputer, a fan failure alarm signal will be issued and the rectifier output current will be reduced.
3.Signal
Socket type | Pin | Signal meaning | Labeling | Contact sequence |
AC input (J1) FCI 51939-021 |
1 | Module AC input | L | 2 |
2 | Module protection | PE | 1 | |
3 | Module AC input | N | 2 | |
DC output and signal (J2) FCI 51939-022 |
1 | Module address line | ADDRESS0 | 3 |
2 | Module address line | ADDRESS1 | 3 | |
3 | Modules are streamlined | LOADSHARE+ | 3 | |
4 | NC | NC | 3(kept) | |
5 | NC | NC | 3(kept) | |
6 | NC | NC | 3(kept) | |
7 | Module address line | ADDRESS2 | 3 | |
8 | Module address line | ADDRESS3 | 3 | |
9 | Modules equalizing line | LOADSHARE- | 3(kept) | |
10 | RS485 + | +5V | 3 | |
11 | RS485 - | +5VGND | 3 | |
12 | Module communication line | RS485- | 3 | |
13 | Module address line | ADDRESS4 | 3 | |
14 | NC | NC | 3(kept) | |
15 | Module communication line | RS485+ | 3 | |
16 | Address line GND | ADDR_GND | 3 | |
Precharge | Pre-Charge | 1 | ||
Module output 48V+ | DC+ | 2 | ||
Module output 48V+ | DC+ | 2 | ||
Module output 48V- | DC- | 1 | ||
Module output 48V- | DC- | 1 |
LED Indicator | |||
Indication mark | Indicator color | Status | Instruction Meaning |
Normal |
green
|
ON | Mains input is normal and module is working normally |
OFF | Mains failure (no AC input, AC input overvoltage, no output from the module) | ||
Protection indicator
|
yellow
|
OFF | No module failure |
ON | The power module is abnormally temperature-pre-alarmed; it sleeps and shuts down (only the protection indicator is on when the device is powered off, and the module does not report alarms). | ||
Fault indicator | red | OFF | No module failure |
ON | The red light is on when the output is over voltage shutdown, fan failure, over temperature shutdown, or no output due to the internal cause of the module. |