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DESCRIPTION

Basic Info.

Model NO.	R4850G2
Dimension	40.8 X 105 X 281mm
Weight	2.0kg
Specification	Brand New
Trademark	Huawei
Origin	Wuhan
Production Capacity	1000 Sets/Month

Product Description

HUAWEI R4850G2 48V 50A Telecom Rectifier Module

R4850G2 Brief:

The R4850G2 is a digital rectifier that converts the 85~300VAC to 53.5 VDC and possesses the characters of high efficiency, high power density, walk-in start, hot-plug, complete protection, and low noise. The rectifier adopts the latest power monitoring technology, implements the function of monitoring the states of loads and the rectifier status in real time. The output voltage of the rectifier can be adjusted through the host.

48V 50A Rectifier Features
1) High efficiency: ≥96%
2) Input voltage range: 85~300VAC
3) Operating temperature range: -40ºC~75ºC
4) Total harmonic distortion(THD): ≤5%
5) Hot-plug
6) Digital control
7) Intelligent electric meter
8) Communication over RS485
9) Adjustment of voltage and current
10) Meet RoHS requirements
11) Passing the TUV,CE,CB,UL certifications
HUAWEI R4850G2 50A rectifier Specification

R4850G2 Weight: 2.0kg
Dimensions: 40.8 x 105 x 281mm
R4850G2
HUAWEI R4850G2 48V 50A telecom rectifier module
Notes
1. We will ship the item in 3-5 work days after the payment arrive.
2. We will usually ship the item to Worldwide by FedEx/ UPS/DHL.
3. Buyer's responsibility to pay customs fees, duties, import taxes, shipping charge
And related charges.
4. We accept the payment through T/T, Paypal, and Western Union.
5. The pictures show you one of the items in stock. But the exact one may be sold before your bidding. So it may not the exact one which you will receive.
Specifications
Electrical

Item	Specification
Input
Operating voltage	85-300 VAC
Frequency	45-66 Hz Rated : 50Hz and 60 Hz
Rated input current	<17A
Power factor	≥ 0.99(load≥50% )
THD	≤ 5%(load≥50% )
Output
Output voltage	42-58 VDC Rated voltage: 53.5 VDC
Output power	3000 W (176-290 VAC); 1250 W (85-175 VACdecreased linearly)
Regulated voltage precision	≤±0.6%Vo
Ripple and noise	≤ 200 mVp-p (Bandwidth≤20MHz)
Dynamic response	Over shoot:≤ ±5% Vo Recovery time: ≤ 200 us
Standby power	≤ 5W
Turn-on output delay	3-8 s
Hold up time	>10 ms
Psophometrically weighted noise	≤ 2 mV
Wideband noise voltage	≤ 50 mV (3.4k-150 kHz) ≤ 20 mV (0.15M-30MHz)

Other Features

Item	Specification
Protection
Input overvoltage protection	Protection point:>300 VAC
	Recovery range:290-300 VAC
Input undervoltage protection	Protection point:<80 VAC
	Recovery range:80-90 VAC
Output overvoltage protection	58.5-60.5 VDC (can be set by monitoring unit ) If the overvoltage occurs inside the rectifier due to a fault, the rectifier will latch off. If the output voltage is higher than 63 V and lasts for more than 500 ms, the rectifier will latch off.
Output current limiting protection	See Figure 1.
Output short circuit protection	A long term short circuit is allowed. After the fault is rectified, the rectifier is restored to a healthy state automatically.
Over-temperature protection	The module protects against overtemperature.
Safety/EMC/Lightening protection
Safety certification	Passes TUV, CE, UL certifications. Catch the CB certificate. Complies with UL60950-1;IEC60950-1;EN60950-1 CAN/CSA C22.2 No. 60950 -1 ;
EMC	EN55022 Class B ; EN55024; EN61000-3-2; EN61000-3-3; ETSI EN300 386; ETSI EN301489; ITU-T K.20;
Lightning	5KA
Reliability
MTBF	> 500,000 hours
Audible Noise
Specification	≤55dB(40 ºC/ 77 °F ,full load)