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

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.

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 cruising, or charge a 12V starter battery when connected to the network.

Yes, the Mac Plus 48/12-50 is a bidirectional converter-charger. By default, it converts 48V to 12V. However, the direction of the current flow 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.

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

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.

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

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

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

For the 48/12-50 model, the minimum recommended 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 choose a larger cable size for the low-voltage side.

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

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

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

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.

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.

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

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.

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

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

The warranty is limited to the cost of repairing and/or replacing the product. Labor and shipping costs are not covered by this warranty.