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Remote Control 48V DC Power Supply For Telecommunications Equipment

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Buy cheap Remote Control 48V DC Power Supply For Telecommunications Equipment from wholesalers

Remote Control 48V DC Power Supply For Telecommunications Equipment

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Brand Name:HRD OR OEM

Model Number:48VDC 50A

Certification:CE

Price:USD 150-280/PCS

Supply Ability:100pcs/month

Company Data

Shenzhen HRD SCI&TECH CO.,Ltd

Verified Supplier

Contact Person Hunter Chen

Business Type: Manufacturer Exporter

Officials: 1st floor, 56A building, Bao’tian Industrial Park,Xixiang Town Bao’an District, Shenzhen City

Quality: Quality Certifitation Available

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Product Details Company Profile

Product Details

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
Power conversion	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
Output capacity		1200		W	Input range within 90-154V
Output efficiency	95		95.6	%	220V AC input ,25%-75%load
Output efficiency	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)
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
DWH	242.1102.783.8mm
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.

Company Profile

Shenzhen HRD SCI&TECH CO.,Ltd

About HRD ,founded in 2010, after more than 14 years fast development,HRD has grown into a large leading professional UPS manufacturer with ISO9001:2015 , ISO14001,ISO18001 certified

Based on strong high level professional R&D team with own core technology in both hardware and software,HRD specially focus on producing middle and high level quality AC UPS, Industrial Charger&DC UPS, AC source, inverters and customized power supply based on OEM and ODM.

Our power products capacity range is from 600VA to 800KVA, and have gained more than 60nos inventive and innovative patents.Also we have become the only UPS manufacturer from China,which is able to produce super reliable large capcaity indsutrial LF UPS up to 800kVA (parallel up to 8units)!

So far our products have been exported to more than 40 countries , preferred by many quality clients ,including by world-famous brands etc( EATON, SIMENS, AEG etc... )

The high quality UPS, Inverter ect power products are also successfully and widely used for the Chinese Army power system and let’s become one of the two appointed UPS supplier of the People’s Liberation Army General Armaments Department and appointed supplier of the central government of China ,too.

Our main products details as below:

For 220/230/240Vac,Power grid
PEII series 3phase Online LF UPS 10-800kVA, output PF 0.9
H6000-Marine Industrial UPS 3:3phase 10-600kVA
PWM series 3phase Online HF UPS 10-60kVA, output PF1.0
HQM series Modular UPS 25-840kVA, output PF 1.0
PC Max series Online HF UPS 1-20kVA, output PF1.0
PC Max Rack mount Online HF UPS 1-10kVA, output PF1.0
HC series Line interactive UPS 1KVA-5kVA, output PF0.8 Smart Power Series Offline UPS 600VA-3000VA,Output PF0.6
Hybrid Solar inverter 1kw-10kW, transformerless
R7000 Series Industrial Charger&DC UPS
Battery: Lead acid, Gel ,Lithium Battery and CSB battery
For 110/120/127Vac,60Hz Power grid
PEAII (America)3phase Online LF UPS 10-200kVA, output PF 0.9
Powerwell Max (America)3phase Online HF UPS 10-30kVA, Output PF 0.9
ZYA Modular UPS 60kVA-300kVA,output PF 0.9
PCM TX series Split phase UPS 6-10kVA, Output PF 1.0 PCM A series Online HF UPS 1-3kVA, output PF1.0
HC series line interactive UPS 1-3kVA, output PF0.8
RT rack Mount Line interactive UPS 1-3kVA, output PF0.8
Smart Power Series Offline UPS 600VA-3000VA,Output PF0.6
Accessory: SNMP card,Dry contact board,CSB battery, battery cabinet ect...

Thanks to 2 large manufacturing bases of more than 20000 square meters in Bao’an District Shenzhen and Foshan Guangdong ,we make sure to deliver each high quality product on time to our global clients.

With the core competitive power behind HRD product --Quality, Service and Efficiency, has powerfully assisted HRD winning more and more global clients’ preference.

On the way of HRD’s rapid development, we have witnessed each development milestone with our clients.We look forward to creating and witnessing more legendary with you in power field!

We warmly welcome and expect your visit to HRD to negotiate muthual benefical business cooperation in long term!

Mission: Produce high quality energy products and provide complete power solution to worldwide partners for middle and high end market;

Vision:To be a world-class company in energy solution provider.

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