Chargeur convertisseur Mac Plus 24/12-50 + CZone

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Mastervolt

81205205

Mac Plus 24/12-50 DC-DC Charger Converter + CZone

The Mastervolt Mac Plus 24/12-50 (SKU 81205205) is a DC-DC charger-converter from the Mac Plus range, designed to convert a nominal input voltage of 24 V into a stabilized 12 V output with a maximum current of 50 A.

With an efficiency exceeding 95 %, this model ensures fast and safe charging of lead-acid and lithium-ion batteries, and integrates with systems via MasterBus, CZone®, and NMEA 2000®.

Delivery of this product includes a battery temperature sensor and a user manual.

Retail priceBenefit from the professional rate

469,50€

469,50€ ~~594,00€~~

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

Technical specifications

Input voltage range	20-32 V
Nominal input voltage	24.0
Output voltage	12.0
Output current	50.0
Max output power	600.0
Energy efficiency rating	95.0
Galvanic isolation voltage	0.0
Converter topology	High frequency
Cooling method	Natural cooling (fanless)
Mounting type	Screwed assembly
Ingress protection	IP23
Marine grade	Oui
Parallel connection	Oui
Remote on/off support	Oui
Short-circuit protection	Oui
Over-voltage protection	Oui
Over-temperature protection	Oui
Overload protection	Oui
Dimensions (W x H x D)	255 x 66 x 165 mm
Weight	2.0
Power conversion type	DC-DC
Continuous power at 25°C	600.0
Max efficiency	97.0
Marine-ready	Oui
Nominal output voltage	12.0
Operating temperature range	-25 to +60 °C (derating above 40 °C)
Peak power	750.0
Recommended fuse rating	40.0
Wired input	M8 screw terminals
Wired network	MasterBus, CZone
Wired output	M8 screw terminals

Detailed description

The Mastervolt Mac Plus 24/12-50 + CZone is an advanced DC-DC charger converter designed for efficient energy management on board vehicles and vessels equipped with 24V systems requiring stable 12V power. This specific model from the Mac Plus range converts a nominal input voltage of 24V (range 19–30V DC) into a stabilized 12V output (range 10–15V) with a maximum current of 50A and a nominal output power of 710W (750W max).

Technical Performance and Efficiency

The Mac Plus 24/12-50 integrates a proven 3-stage+ charging algorithm, ensuring fast and safe charging of service batteries, even during short trips. It is compatible with a wide range of battery technologies, including lead-acid (flooded, gel, AGM, spiral), lithium-ion (LiFePO4), and traction batteries, with user-configurable parameters. Its efficiency exceeds 95% at full load and nominal input voltage, peaking at 97%, minimizing energy losses. Unlike basic DC-DC converters, the Mac Plus features engine-running detection to protect the starter battery and provides stable power even when the alternator is inactive, compliant with Euro 5/6 alternator requirements.

System Integration and Advanced Features

This converter stands out for its native compatibility with MasterBus, CZone, and NMEA 2000 protocols, offering superior system integration for monitoring and automation. It can be configured via MasterAdjust, the CZone configuration tool, or directly using its integrated DIP switches. The Mac Plus 24/12-50 can also operate in stabilized power supply mode for sensitive loads, ensuring constant output voltage and protecting electronic equipment. For installations requiring higher charging capacity, up to ten units can be configured in parallel, allowing output currents well above 100A. Although it lacks galvanic isolation, it compensates for voltage drops via its voltage sensing ports and optimizes charging with its included battery temperature sensor.

Robust Design and Installation

Housed in a high-quality aluminum enclosure (255 x 165 x 66 mm, weighing 2 kg), the Mac Plus 24/12-50 offers IP23 protection against solid objects larger than 12.5 mm and water splashes, ensuring durability in marine and mobile environments. Its fanless design ensures silent operation. It features three M8 terminals for power cables (10–50 mm²) and an 8-pole screw terminal for control signals (0.75–1.5 mm²). The product complies with CE, E-Mark/R10, SAE J1171, and ISO 8846 Ignition Protected standards. Installation requires a minimum clearance of 10 cm on each side for optimal airflow and must be performed using appropriately sized cables, e.g., 10 mm² [AWG 8] for input and 16 mm² [AWG 6] for output in this 24/12-50 model. It must not be mounted directly above batteries to avoid exposure to corrosive sulfur emissions.

Documentation

Type	Nom
	EN - Plan de dimensions - Mastervolt Mac Plus 24/12-50 + CZone
	EN - Manuel utilisateur et installation - Mastervolt Mac Plus 24/12-50 + CZone
	FR - Manuel utilisateur et installation - Mastervolt Mac Plus 24/12-50 + CZone

Expert opinion

Pol CONIN

Digital Manager

« Technical expertise: MASTERVOLT Mac Plus 24/12-50 and its system integration »

The Mastervolt Mac Plus 24/12-50 + CZone is a robust technical solution for DC-DC power conversion in demanding marine and embedded electrical architectures. Its ability to precisely convert 24V to 12V with a stable 50A output current is critical for powering secondary systems without compromising reliability. Integration with MasterBus, CZone, and NMEA 2000 protocols gives this device major strategic value, enabling centralized control and monitoring essential for complex systems. Maintaining optimized battery charging via the 3-step+ algorithm, even with Euro 5/6 smart alternators, ensures the longevity of service battery banks. Its fanless design provides appreciable acoustic discretion, while its IP23 protection rating and aluminum housing attest to field reliability, including in harsh environmental conditions. The ability to operate in parallel for high-power requirements demonstrates its flexibility and scalability for evolving installations.

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Mac Plus 24/12-50 DC-DC Charger Converter + CZone

469,50€

469,50€ ~~594,00€~~

Frequently Asked Questions

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What is the primary function of the Mac Plus 24/12-12 charger-converter + CZone?

The Mastervolt Mac Plus 24/12-50 + CZone is a versatile device that converts a direct current (DC) voltage into a stabilized DC voltage. It can be used in two main ways:

- As a three-stage battery charger.

- As a stabilized DC power supply device.

What are the input and output voltages of this Mac Plus converter?

This specific model, the Mac Plus 24/12-50, is designed to accept an input voltage of 24V and provide a stable output voltage of 12V.

What is the maximum output current of the Mac Plus 24/12-50?

The Mac Plus 24/12-50 converter charger provides a nominal output current of 50 amperes (50A).

Can the Mac Plus 24/12-50 be used as a simple regulated power supply?

Yes, the Mac Plus 24/12-50 can operate as a stabilized direct current (DC) power supply in addition to its battery charger function.

What is the weight of the Mac Plus 24/12-50 converter charger?

The weight of the Mac Plus 24/12-50 converter charger is 2 kilograms.

What is the ingress protection rating (IP) of the Mac Plus 24/12-50 + CZone?

The Mastervolt Mac Plus 24/12-50 + CZone has an IP23 ingress protection rating, indicating some resistance to the marine environment.

Which communication networks is the Mac Plus compatible with?

The Mac Plus 24/12-50 + CZone is designed to natively integrate with MasterBus and CZone communication networks, providing advanced system monitoring and configuration.

What are the ventilation requirements for installing the Mac Plus?

For adequate ventilation, the Mac Plus must be mounted so as not to obstruct airflow through its ventilation openings. The unit requires a minimum clearance of 10 cm (4 inches) on all sides.

Are there any locations to avoid when mounting the Mac Plus?

Yes, it is important not to install the Mac Plus:

- Directly above the batteries, due to potential corrosive sulfur fumes.

- In an area where there is a risk of gas or dust explosions.

Which cable sections are recommended for the input and output of the Mac Plus 24/12-50?

For the Mac Plus 24/12-50 model, the recommended minimum cable cross-sections are:

- For the DC input: 10 mm² (AWG 8).

- For the DC output: 16 mm² (AWG 6).

How should the Mac Plus be mounted during installation?

The Mac Plus must be mounted on a flat and solid surface using four M5 screws.

How to add the Mac Plus to an existing MasterBus network?

To add the Mac Plus to an existing MasterBus network:

- Disconnect a MasterBus cable or terminator from the nearest MasterBus device and connect it to the Mac Plus.

- Connect the new MasterBus cable to the other MasterBus device, then connect it to the Mac Plus.

How to integrate the Mac Plus into an existing CZone network?

To integrate the Mac Plus into an existing CZone system configuration:

- Disconnect the backbone bus at the nearest connection and add a T-connector.

- Reconnect the backbone bus connections with the new T-connector in place.

- Connect the CZone/MB RJ45 spur cable to the black coupler on the T-connector, then connect it to the Mac Plus.

Is the battery temperature sensor included with the Mac Plus?

Yes, a battery temperature sensor is included with the Mac Plus delivery to enable temperature-compensated charging.

Does the Mac Plus require a specific ground connection for installation?

Yes, the Mac Plus is designed for use only in installations with a common negative ground.

What is the operating temperature range of this charger converter?

The Mac Plus can operate within a temperature range of -20 °C to +60 °C. However, above 40 °C, the device will operate with decreasing power output.

What is the product warranty duration for the Mac Plus?

Mastervolt provides a two-year product warranty on the Mac Plus, starting from the purchase date, provided the product is installed and used in accordance with the manual's instructions.