MG Master LV 24-48V/1000A (M12) – vue fabricant 1 – MGMLV481002

MG Master LV 24-48V/1000A (M12) – vue fabricant 2 – MGMLV481002

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MG ENERGY

MGMLV481002

MG Master LV 24-48V/1000A (M12) – MGMLV481002

MG Energy battery controller for 48 V system, 1000 A main contactor, responsible for monitoring and protecting the compatible bank.

Retail priceBenefit from the professional rate

1.769,28€

1.769,28€ ~~1.980,00€~~

Tax included. Shipping calculated at checkout.

Available in stock

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

MG Energy battery controller for 48 V systems, 1000 A main contactor, tasked with monitoring and protecting the compatible battery bank.

Key features

Centralized monitoring of essential battery bank parameters.
System protection via opening of the safety contactor in case of threshold exceedance.
Active power consumption: 8.7 W.
Manufacturer documentation and 2026 dealer specifications linked to the exact SKU.

Intended use

MG Energy battery system integrators for marine, mobile, and stationary applications.

Compatibility and prerequisites

System voltage range: 48 V.
Contactor capacity: 1000 A.
Connectable batteries: 48 battery modules of type RS.

Installation and safety

Power wiring, CAN, emergency stop, and precharge to be completed according to the MG Energy manual.
Verify precharge capacity and contactor current relative to loads and converters.
Commissioning and configuration reserved for qualified integrators.

Included

One BMS controller matching the listed SKU.
Official digital documentation.

To be provided separately

Batteries, CAN cables, and power cables.
Fuses, distribution, external contactors, and installation-specific accessories.
Electrical study, configuration, and commissioning.

Shipping and handling

Declared shipping weight: 9.2 kg.
Configuration product sold on quote; compatibility and lead time confirmed before order.

Environment

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

Inputs and outputs

Charge enable (relay output): 0.8 A at 60 Vdc, dry contact
Charge enable (switched voltage): Short-circuit protection
Discharge enable (relay output): 0.8 A at 60 Vdc, dry contact
Discharge enable (switched voltage): Short-circuit protection
Auxiliary output: Short-circuit protection
Emergency stop connection: Wired emergency stop opening the main contactor.
External status signal: Short-circuit protection
Programmable contact (relay output): 0.8 A at 60 Vdc, dry contact

Mechanical specifications

Data connection: CAN Bus M12
Housing material: ABS
Height: 117 mm
Ingress protection rating: IP22
Length: 426 mm
Weight: 8.6 kg
Width: 225 mm

Standards and certifications

Certifications: IEC-EN62619 (ES-TRIN)
EMC emissions: EN-IEC 61000-6-3:2007/A1:2011/C11:2012
EMC immunity: EN-IEC 61000-6-1:2007
Low voltage directive: EN 60335-1:2012/AC:2014
RoHS: EN 50581:2012

Technical specifications

Main contactor current: 1000 A
Maximum number of connected batteries: 48 RS-type battery modules
Maximum precharge capacity: 250 mF at 48 V
Operating power consumption: 8.7 W
Standby power consumption: 73 mW at 26.2 V, 138 mW at 52.4 V
Supply voltage range: 18 - 58 Vdc
System voltage: 48 V

Logistics

HS customs code: 8537109199
Country of origin: Netherlands
Shipping weight: 9.2 kg
Classified as dangerous goods: No

Documentation

Official MG Energy datasheet - MGMLV481002

Integration tip: verify voltage, currents, protections, cooling, and interfaces of the complete system prior to installation.

Expert opinion

Pol CONIN

Digital Manager

« Expert review — MG Master LV 24-48V/1000A (M12) – MGMLV481002 »

The MG Master LV 24-48V/1000A (M12) is a centralized battery management system (BMS) designed for demanding low-voltage systems. Its primary function is the protection and monitoring of battery banks, with the ability to manage up to 96 modules of LFP, HE, UHE, HP types or 48 RS-type modules. This controller is particularly relevant for marine, mobile, and stationary applications requiring robust and reliable energy management capable of handling continuous currents up to 1000A.

Its practical value lies in the integration of a main safety contactor, precharge function, DC distribution, and fuse holders, which significantly simplifies the architecture of power systems. This "all-in-one" approach reduces the number of external components required and, consequently, potential failure points. Active cell balancing across the entire installation not only maximizes usable capacity but also extends battery lifespan, a critical aspect for significant investments in lithium banks.

Regarding installation scenarios, while the manufacturer describes ease of use as "Plug and Play" due to component integration, it is imperative to emphasize that commissioning and configuration must be performed by a qualified integrator. The CAN Bus M12 and RJ45 connections for communication, as well as Amphenol PowerLok power connectors with integrated HVIL, are technical choices that facilitate interconnection while ensuring safety. However, installation involves power wiring, CAN, emergency stop, and precharge, requiring expertise in accordance with MG Energy manuals.

This model stands out due to its BMS redundancy, advanced diagnostic capabilities including event logging and optimization software, and its extended compatibility with CAN-Bus protocols (NMEA2000, Victron VE.Can, SMA). Automatic firmware updates via CAN-Bus are a notable advantage for keeping the system up to date without complex manual intervention. Bluetooth Smart connectivity via the MG Connect app enables convenient remote monitoring and control.

It is important to note that its IP22 protection rating indicates use in protected environments, shielded from direct water projections. It is therefore not suitable for outdoor installation or exposed compartments without additional adequate protection. Verifying precharge capacity and contactor current relative to loads is a critical step during system design.

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MG Master LV 24-48V/1000A (M12) – MGMLV481002

1.769,28€

1.769,28€ ~~1.980,00€~~

Frequently Asked Questions

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What is the MG Master LV 24-48V/1000A (M12)?

The MG Master LV 24-48V/1000A (M12) is a battery management controller (BMS) designed by MG Energy Systems for low-voltage systems. Its primary function is to protect connected batteries by monitoring all essential system parameters and balancing the cells. It includes a safety contactor that automatically opens if parameters exceed safe operating limits, ensuring reliable operation.

What are the main functions of the MG Master LV?

The main functions of the MG Master LV are:

Centralized monitoring of essential battery bank parameters. System protection via an internal safety contactor opening in case safe operating limits are exceeded. Cell balancing across the entire battery installation, maximizing capacity and extending cell lifespan.

What is the power consumption of the MG Master LV?

The MG Master LV consumes 8.7 W in active mode. In standby mode, it consumes 73 mW at 26.2 V and 138 mW at 52.4 V.

What are the physical dimensions of the MG Master LV controller?

The MG Master LV controller has the following dimensions:

Height: 117 mmLength: 426 mmWidth: 225 mm

What is the weight of the MG Master LV?

The weight of the MG Master LV controller is 8.6 kg. The declared shipping weight for this product is 9.2 kg.

What is the housing material of the MG Master LV?

The MG Master LV housing is made of ABS (Acrylonitrile Butadiene Styrene).

What is the IP protection rating of this controller?

The MG Master LV has an IP22 protection rating.

What is the operating temperature range of the MG Master LV?

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

What is the maximum humidity level supported by the device?

The unit supports a relative humidity without condensation up to 95%.

With which system voltages is the MG Master LV compatible?

The MG Master LV is compatible with 24 V and 48 V systems. Its supply voltage range is 18 to 58 Vdc.

What is the maximum capacity of the integrated safety contactor?

The main safety switch integrated into the MG Master LV has a current rating of 1000 A.

How many battery modules can be connected to the MG Master LV?

The MG Master LV can be connected to:

Up to 48 battery modules of RS type. Up to 96 battery modules of LFP, HE, UHE, HP types.

What type of data connection does the MG Master LV use?

The MG Master LV uses a CAN Bus M12 data connection.

What relay outputs are available for charge and discharge authorization?

The MG Master LV has dry-contact relay outputs for charge authorization (Allow-to-Charge) and discharge authorization (Allow-to-Discharge). These outputs have a rating of 0.8 A at 60 Vdc.

What are the prerequisites for installing and commissioning the MG Master LV?

Installation and commissioning of the MG Master LV require:

A power, CAN, emergency stop and precharge wiring performed according to the MG Energy manual. A verification of precharge capacity and contactor current relative to loads and inverters. Commissioning and configuration must be carried out by a qualified integrator.

Which components are not included with the controller and must be sourced separately for installation?

Items to be provided separately for a complete installation include:

Batteries. CAN cables and power cables. Fuses, distribution panels, external contactors, and installation-specific accessories. Electrical study, configuration, and commissioning.

Does the controller have a connection for an external emergency stop?

Yes, the controller is equipped with a connection for a wired emergency stop. This connection is designed to open the main contactor in an emergency.

What switched outputs are available on the MG Master LV?

The MG Master LV has multiple switched outputs with overcurrent and short-circuit protection:

Charge enable (switched voltage): 13.5 V / 1 A.Discharge enable (switched voltage): 13.5 V / 1 A.Auxiliary output: 13.5 V / 1 A.External status signal: 13.5 V / 140 mA.