MR483000HG2B-GS 48V 3000W High Efficiency Rectifier Module Hot Swappable Wide Input Range 85 290VAC

MR483000HG2B-GS Rectifier Module

1. Product Introduction

MR483000HG2B-GS is a power supply device that converts standard AC voltage into stable 48Vdc for

communication power supply system.

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.

1.1 Appearance

Figure 1-1 Appearance

1.2 Operating environment

1.3 Electrical Characteristics

1.4 Mechanical characteristics

Figure 1-2 Product drawing

1.5 Output characteristics

176Vac≤Input voltage≤290Vac&-10°C≤Ambient temperature≤45°C

Output current(A)

Figure 1-3 Output characteristic curve

-10°C≤Ambient temperature≤45°C

Input voltage(VAC)

Figure 1-4 Input Voltage Derating Curve

176Vac≤Input voltage≤290Vac

Figure 1-5 Temperature Derating Curve

Figure 1-6 Efficiency curve

1.6 Other features

Item	Index
Protection Features
Input over voltage protection	290Vac<Input voltage<300Vac:The warning light is on, the output is normal 300Vac<Input voltage:output off
Input over-voltage recovery	Input voltage<290Vac ,automatic recovery
Input under-voltage protection	Input voltage<80±5Vac output off
Input under-voltage recovery	Input voltage>80~90VAC, automatic recovery
Output over-voltage protection	Internal over-voltage: 58.5VDC~60.5 VDC, Can be set via monitor When the internal over-voltage protection occurs, the module locks out
	External over-voltage:>63VDC, And last for more than 500ms When external over-voltage protection occurs, the module locks out
	The above two output over-voltages can be recovered by re-powering on
Output current limiting protection	See module output characteristic curve
Output short-circuit protection	It can be short-circuited for a long time, and it can be automatically restored after the short-circuit disappears.
Overtemperature protection	With over temperature protection
Safety/EMC/Surge Protection
Certification & Safety	Passed the CE,UL,UL-CB certifications and obtained the CB,UL,CE certificate UL 62368-1 EN 62368-1 IEC 62368-1
EMC	EN 55032 Class B EN 55035 IEC 61000-3-2 IEC 61000-3-3
Lightning protection	5KA 8/20μs

1. Module introduction

1.7 Interface description

Table 1 Definition of module gold finger

1.8 Module panel introduction

Table 2 Description of the indicator lights of the rectifier module

2. Module user guide

This chapter mainly introduces the correct use methods in some applications of the rectifier module, and some precautions during application.

2.1 Module installation

2.2 Module fixation

If the design or processing tolerance of the slot of the finishing module is not well controlled, the module will not work properly, be damaged, etc. It is recommended to design according to the slot 3D model provided by Megmeet or purchase the demanded module slot from Megmeet.

2.3 CAN Bus Termination Resistor

In order to ensure the communication quality of the module, the CAN bus needs to use T-type wiring, and star-type wiring is not recommended.

It is necessary to install a 120-Ω matching resistor on the head and tail of the CAN bus. After adding the resistance, the resistance of the CAN bus is 60 Ω .

If there is a monitoring module or a host computer on the CAN bus, you need to confirm whether the monitoring module or the CAN bus of the host computer has a built-in default 120 Ω resistance, and ensure that the

impedance of the CAN bus is 60 Ω .

2.4 Hi-pot test

The module has built-in lightning protection circuit, and the input L and N have gas discharge tubes to the ground. If the withstand voltage test is performed, the grounding screw of the lightning protection circuit needs to be removed (the red circle in the figure below), otherwise it will cause the withstand voltage test to fail.

After the hi-pot test, replace the screw, otherwise the module may be damaged by lightning strikes.

2.5 Lightning protection design

The rectifier module has a built-in D-level lightning protection circuit, which can withstand the lightning current of 5KA 8/20μs waveform. If the system needs to pass a higher level lightning current, such as a C-level (20KA 8/20μs) lightning strike, the system needs to install a C-level lightning protection device, and follow the classification principle of lightning protection design, between the C-level lightning protection device and the module. There should be enough distance (recommended distance should not be less than 5M) or install lightning protection decoupler or make hollow decoupling coil. Otherwise, the rectifier module may be damaged when struck by lightning; If the system needs to meet higher-level lightning protection requirements, such as B-level lightning protection.

There needs to be a C-level lightning protection device between the B-level lightning protection and the rectifier module, and there must be sufficient distance or decoupling between the various levels of lightning protection.