BMS haute tension MG Master HV 900 V - 300 A - vue 1 - MGMHV800300

BMS haute tension MG Master HV 900 V - 300 A - vue 2 - MGMHV800300

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MG ENERGY

MGMHV800300

High-voltage BMS MG Master HV 900 V - 300 A

Name: High-voltage BMS MG Master HV 900 V - 300 A
Brand: MG ENERGY
SKU: MGMHV800300

The Master HV is the safety and control unit for MG high-voltage battery banks. It monitors essential parameters, controls charging and discharging, and supports architectures up to 900 V DC and 300 A.

On request

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Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Detailed description

The Master HV is the safety and control unit for MG high-voltage battery strings. It monitors critical parameters, controls charging and discharging, and supports architectures up to 900 V DC and 300 A.

Key features

Maximum voltage: 900 V DC
Main contactor: 300 A
IP65 housing and M12 CAN connection
Emergency stop input and programmable contacts

Use case

Safety unit for high-voltage battery strings in propulsion, storage, or industrial applications.

Compatibility and prerequisites

One Master HV unit required per battery string
Systems from 120 to 900 V DC
M12 CAN connection and PowerLok 300 power connection

Installation and safety

Installation restricted to a designed and protected high-voltage architecture
Connect emergency stop, charge/discharge permissions, and 24 V inputs
Verify insulation, precharge, and contactor coordination before power-up

Included

Master HV 900 V / 300 A unit

To be supplied separately

Batteries, PowerLok connectors, CAN cables, and power cables
High-voltage protections, external precharge, and emergency stop accessories

Shipping and handling

Shipping weight: 13.5 kg
Not classified as dangerous goods

Environment

Humidity (non-condensing): ≤ 95 %
Operating temperature range: -20 to +50 °C

Inputs and outputs

Charge enable (relay output): 1.5 A at 30 Vdc, fuse-protected
Discharge enable (relay output): 1.5 A at 30 Vdc, fuse-protected
Digital input 1: 24 V / 5 mA
Digital input 2: 24 V / 5 mA
Digital input 3: 24 V / 5 mA
Emergency stop connection: Yes
Programmable contact (relay output): 1.5 A at 30 Vdc, fuse-protected

Mechanical specifications

Data connection: CAN Bus M12
Height: 121 mm
Protection rating: IP65
Length: 430 mm
Power connection: PowerLok 300
Weight: 9.9 kg
Width: 329 mm

Standards and certifications

Certifications: IEC-EN62619 (ES-TRIN)
EMC emissions: EN-IEC 61000-6-3:2007/A1:2011/C11:2012
EMC immunity: IEC 61000-4-6:2013

Technical specifications

Main contactor current: 300 A
Maximum voltage: 900 Vdc
Supply current: 2.5 A
Supply voltage range: 18 - 32 Vdc
System voltage: ≥ 120 V

Logistics

HS customs code: 8537109199
Country of origin: Netherlands
Shipping weight: 13.5 kg
Classified as dangerous goods: No

Documentation

Official MG Energy datasheet - MGMHV800300

Integration advice: verify voltage, currents, protections, cooling, and interfaces of the complete system before installation.

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High-voltage BMS MG Master HV 900 V - 300 A

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Frequently Asked Questions

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What is the primary function of the MG Master HV 900V/300A?

The MG Master HV is the central safety and control unit for MG high-voltage battery banks. It is designed to monitor essential parameters, control battery charging and discharging, and can manage architectures up to 900 V DC and 300 A.

What are the main technical specifications of the Master HV?

The Master HV offers several key features:

A maximum continuous voltage of 900 V DC. A 300 A main contactor. A housing with IP65 protection rating. Data connection via CAN Bus M12. A dedicated input for emergency stop. Programmable contacts for increased flexibility.

What are the physical dimensions of the MG Master HV unit?

The physical dimensions of the MG Master HV are:

Height: 121 mmLength: 430 mmWidth: 329 mm

What is the weight of the MG Master HV unit?

The net weight of the MG Master HV unit is 9.9 kg.

What is the operating temperature range of the Master HV?

The Master HV is designed to operate within an ambient temperature range from -20 °C to +50 °C.

What is the ingress protection (IP) rating of the Master HV housing?

The Master HV housing has an IP65 protection rating, meaning it is protected against dust ingress and low-pressure water jets from any direction.

What type of data connection does the Master HV use?

The Master HV uses a CAN Bus M12 data connection for communication with other system components.

What type of power connection is used on the Master HV?

The power connection on the Master HV is of the PowerLok 300 type.

What are the specifications for the relay inputs and outputs of the Master HV?

The Master HV has the following inputs and outputs:

Charge enable (relay output): 1.5 A at 30 Vdc, fuse-protected. Discharge enable (relay output): 1.5 A at 30 Vdc, fuse-protected. Digital input 1, 2, 3: 24 V / 5 mA. Programmable contact (relay output): 1.5 A at 30 Vdc, fuse-protected.

What is the required power supply voltage range for the Master HV itself?

The Master HV requires a supply voltage of 18 to 32 Vdc for its own operation, with a supply current of 2.5 A.

Does the Master HV have an emergency stop connection?

Yes, the Master HV is equipped with a dedicated connection for an emergency stop switch.

Which battery system voltages is the Master HV compatible with?

The Master HV is suitable for high-voltage battery systems ranging from 48 Vdc up to 900 Vdc. It specifically supports system voltages of 48 V, 72 V, 96 V and ≥ 120 V.

How many Master HV units are required for a battery system?

A Master HV unit is required per high-voltage battery string.

Is it possible to increase the system capacity by connecting multiple battery banks?

Yes, to increase the total system capacity, it is possible to connect multiple battery banks in parallel, each requiring its own Master HV unit.

What are the approvals and certifications obtained by the Master HV?

The Master HV has obtained the following approvals and certifications:

DNV-GL IEC-EN62619 (ES-TRIN)LloydsVarious EMC standards (CISPR 16-2-1, CISPR 16-2-3, EN-IEC 61000-6-3, IEC 60533, IEC 61000-4-2, IEC 61000-4-5, IEC 61000-4-6).

Which items are not included with the Master HV and must be purchased separately?

The following items are not included with the Master HV unit and must be provided separately:

BatteriesPowerLok connectorsCAN cables and power cablesHigh-voltage protectionsExternal prechargeEmergency stop accessories

What are the general safety recommendations for installing the Master HV?

Installation of the Master HV is restricted to a high-voltage architecture that has been previously studied and protected. It is critical to follow all safety procedures related to high-voltage systems.