Convertisseur chargeur Mac Plus 48/12-50

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Mastervolt

81203105

Mac Plus 48/12-50 DC-DC Converter Charger

The Mastervolt Mac Plus 48/12-50 is a bidirectional DC-DC converter-charger from the Mac Plus range, designed to convert and regulate a 48V input to 12V/50A output. It features intelligent management via MasterBus or CZone, a temperature sensor, and voltage drop compensation. Supplied with a temperature sensor, CZone connection cable, and MasterBus terminator.

Price excl. import taxesBenefit from the professional rate

£385.35 GBP

£385.35 GBP ~~£513.80 GBP~~

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Prices exclude import taxes. DAP delivery: import taxes are paid on delivery.

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

IP rating	IP23
Marine-ready	Oui
Operating temperature range	-20 to +60
Cooling method	Natural convection
Mounting type	Wall mount
Weight	0.0
Wired network	MasterBus, CZone
Wired input	Screw terminal block
Wired output	Screw terminal block
Nominal input voltage	48.0
Input voltage range	36-48
Nominal output voltage	12.0
Continuous power at 25°C	600.0
Continuous output power (40°C)	480.0
Peak power	600.0
Max efficiency	92.0
Remote on/off support	Oui
Short-circuit protection	Oui
Overload protection	Oui
Recommended fuse rating	80.0
Accessory connector pins	6
Battery temperature sensor included	Yes
Bidirectional operation	Yes
Charge profile type	3 steps +
Converter topology	Bidirectional DC-DC converter
CZone network support	Yes
Derating temperature threshold	40
DIP switch configuration	Yes
Energy efficiency rating	90.0
Flat battery support	Yes
Galvanic isolation voltage	0.0
LED status indicators	2
Marine grade	Oui
Mastervolt-CZone drop cable included	Yes
MasterBus network support	Yes
MasterBus terminator included	Yes
Negative ground required	Yes
Max operating temperature	60
Min operating temperature	-20
Output current	50.0
Max output power	600.0
Output voltage	12.0
Over-temperature protection	Oui
Over-voltage protection	Oui
Power conversion type	DC-DC
Power supply mode	Yes
Product manual included	Yes
Recommended wire size (high side)	6
Recommended wire size (low side)	16
Remote switch input	Yes
Serial number tracking	Yes
Voltage drop compensation	Yes

Detailed description

The Mastervolt Mac Plus 48/12-50 is a bidirectional DC-DC converter charger designed for 48V electrical systems on board. It converts 48V battery voltage to a stabilized 12V output at 50A, bridging the gap between high-voltage battery banks and 12V on-board equipment. Its bidirectional functionality, controllable via a MasterBus network, CZone circuit, or remote switch, allows reversing the power flow to charge a 48V service battery or a 12V starter battery.

Performance and system integration

This model, the most powerful in the Mac Plus 48V range with 50A output, differs from the Mac Plus 48/24-30 (30A) and Mac Plus 24/48-15 (15A) by its ability to power high 12V loads. It can operate as a three-stage battery charger or as a stabilized DC power supply, offering maximum flexibility. Integration with a MasterBus or CZone network enables real-time monitoring (voltages, currents, alarms) and advanced configuration via events. Compared to simpler solutions like a basic DC-DC converter, the Mac Plus provides precise regulation, voltage drop compensation, and a battery temperature probe to optimize charging and extend battery life.

Installation and robustness

With an IP23 protection rating, the Mac Plus is designed for humid environments but must be installed protected from direct spray. Its robust design includes protection against polarity reversal, short circuits, and overheating. Installation requires minimum cable cross-sections of 6 mm² (high side) and 16 mm² (low side) for the 48/12-50 model. It is supplied with a battery temperature probe, a Mastervolt-CZone connection cable, and a MasterBus terminator.

Documentation

Type	Nom
	FR - Manuel utilisateurs et d'installation - Convertisseur chargeur Mac Plus 48/12-50
	EN - Manuel d'utilisation et d'installation - Convertisseur chargeur Mac Plus 48/12-50

Expert opinion

Pol CONIN

Digital Manager

« The bridge between 48V and 12V, powerful and intelligent »

The Mac Plus 48/12-50 is an elegant technical solution for sailboats and boats with a 48V electrical architecture. Its 50A output at 12V is sufficient to power all navigation, communication, and comfort equipment without requiring a second 12V battery bank. The bidirectional function is a significant advantage for energy flow management, allowing, for example, recharging the 48V lithium service battery via the alternator or a dock, or supporting the 12V starter battery. Integration via CZone or MasterBus makes it a central component of an intelligent and automated electrical system. Note that this product is not a simple converter: it is a true energy manager that requires careful installation by a professional to fully exploit its potential.

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Mac Plus 48/12-50 DC-DC Converter Charger

£385.35 GBP

£385.35 GBP ~~£513.80 GBP~~

Frequently Asked Questions

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What is the Mastervolt Mac Plus 48/12-50 and what is it used for?

The Mastervolt Mac Plus 48/12-50 is a bidirectional DC-DC converter-charger. It is designed to convert a 48V battery voltage into a stabilized 12V output at 50A. It can also operate in reverse to charge a 48V battery from a 12V system, or a 12V starter battery from a 48V system. It can be used as a three-stage battery charger or as a stabilized DC power supply.

What are the main applications of the Mac Plus 48/12-50 converter?

This converter is ideal for situations where the main power system is 48V, but where equipment requires a 12V power supply. It can also charge a 48V lithium service battery bank during sailing or motoring, or charge a 12V starter battery when connected to the network.

Can the Mac Plus 48/12-50 operate in both directions (bidirectional)?

Yes, the Mac Plus 48/12-50 is a bidirectional DC-DC converter/charger. By default, it converts 48V to 12V. However, the current flow direction can be reversed via MasterBus configuration, the CZone circuit, or a remote switch, allowing, for example, charging a 12V starter battery from a 48V system.

What is the function of the Mac Plus 48/12-50 as a battery charger?

The Mac Plus 48/12-50 can function as a three-stage battery charger. This feature enables optimized battery charging, extending battery life and ensuring full capacity.

What are the default input and output voltages for this model?

The Mac Plus 48/12-50 model uses an input voltage of 48V and provides an output voltage of 12V. The nominal output current is 50A.

What is the meaning of the IP23 protection rating for the Mac Plus?

The IP23 protection rating means the Mac Plus is protected against solid objects larger than 12.5 mm (protection against access with a finger) and against water spray up to 60° from the vertical. This indicates it is suitable for a humid environment but must be installed away from direct water spray.

What safety protections does the Mac Plus 48/12-50 include?

The Mac Plus includes protections against polarity reversal, short circuits, and overheating. It is also designed to minimize the risks of electric shock and fire if installation and usage instructions are followed.

What are the mounting requirements for the Mac Plus converter?

The Mac Plus must be mounted with four M5 screws on a flat and solid surface. A minimum clearance of 10 cm (4 inches) must be maintained on all sides to ensure adequate airflow and prevent overheating. It must not be mounted directly above batteries that may release corrosive fumes.

What type of wiring is recommended for installing the Mac Plus 48/12-50?

For model 48/12-50, the recommended minimum cable size is 6 mm² (AWG 9) for the high-voltage side (48V) and 16 mm² (AWG 6) for the low-voltage side (12V). If bidirectional functionality is used, it is advisable to select a larger cable size for the low-voltage side.

Who is authorized to install the Mac Plus converter?

Installation and any work on the Mac Plus must be carried out solely by a qualified, certified, and trained technician or electrician, in compliance with local standards and regulations in force.

Can the Mac Plus be used in all electrical installations?

No, the Mac Plus can only be used in electrical installations with a common negative ground.

What are the environmental conditions to avoid when installing the Mac Plus?

The Mac Plus must not be exposed to rain, snow, spray, excessive humidity, excessive pollution, or condensation conditions. It must also not be installed in poorly ventilated areas or locations with a risk of gas or dust explosions.

Is the Mac Plus 48/12-50 compatible with MasterBus and CZone networks?

Yes, the Mac Plus 48/12-50 is designed to integrate with MasterBus and CZone networks. This integration enables real-time monitoring of voltages, currents, and alarms, as well as advanced configuration via events.

Can a battery temperature sensor be connected to a Mac Plus?

Yes, the Mac Plus has a dedicated input (pins 5 and 6 on the accessory connector) for a battery temperature sensor. A sensor is included in the delivery.

Can the Mac Plus 48/12-50 compensate for voltage drop in cables?

Yes, the Mac Plus has a voltage drop compensation function, accessible via pins 1 and 2 of the accessory connector. This ensures stable voltage at the battery terminals despite long cable runs.

Is the Mac Plus compatible with all battery types?

The Mac Plus is designed to work with lead-acid batteries and can charge a 48V lithium service battery bank. It is critical never to charge a frozen battery and not to use the Mac Plus to charge non-rechargeable batteries. Battery parameters can be configured via the DIP switches or MasterBus/CZone.

What is the warranty duration for the Mastervolt Mac Plus?

Mastervolt offers a two-year product warranty on the Mac Plus, starting from the date of purchase.

What are the conditions for the Mac Plus warranty to remain valid?

For the warranty to be valid, the product must be installed and used in accordance with the manual instructions. Removing the identification label will also void the warranty.