Mastervolt
Mastervolt Mac Plus Voltage Converter (48V - 12V DC / 50A)
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Mac Plus 48/12-50 is a non-isolated DC-DC charger that takes a 36 V or 48 V input and delivers a quick, safe and consistent charge to a 12 V service or starter battery. Its bi-directional technology lets either side act as input or output, so a single unit can keep both banks topped up. Using the proven Mastervolt 3-step+ algorithm it charges even completely flat batteries, while engine-run detection prevents the starter battery from being drained.
A fanless aluminium housing gives silent operation and superior protection against dust and water, and the unit suits flooded, Gel, AGM and Lithium Ion (incl. LiFePO4) batteries. Adjustable current limits make it ideal for Euro 5/6 smart alternators, and up to four units can run in parallel for higher capacity.
Compatibility with MasterBus, CZone and NMEA 2000 allows full system monitoring and control, with configuration via MasterAdjust, the CZone tool or the on-board DIP switches.
PRODUCT DETAILS
- Bi-directional technology: use either side as input or output
- 36/48 V input to 12 V output, 50 A / 750 W maximum
- Proven Mastervolt 3-step+ charge algorithm charges flat batteries
- Engine run detection protects the starter battery
- Fanless aluminium housing for silent, robust operation (IP23)
- Suitable for flooded, Gel, AGM and Lithium Ion (LiFePO4) batteries
- MasterBus, CZone and NMEA 2000 compatible
- Parallel operation of up to four units; E-Mark/R10 certified
No compatible transducers listed for this product.
General
| Communication protocol | MasterBus, CZone & NMEA 2000 |
| Nominal input voltage | 36/48 V DC |
| Input voltage range | 32-64 V |
| Max. input current | 25 A |
| Nominal output voltage | 12 V |
| Output voltage | 10-15 V DC |
| Max. output current | 50 A |
| Max. output power | 750 W |
| Output voltage stabilisation | 2 % at extremes of temps, load and input |
| Output voltage ripple (peak-peak) | max. 1 % |
| Galvanic isolation | No |
| Efficiency | > 95 % (at nom. input voltage, full load); 97 % peak |
| Parallel configuration | Yes, up to 4 |
| Status indicator | Yes, 3 colour double LED |
| Alarm contact | Yes, through MasterBus, CZone, DIP switch or remote switch |
| Engine run signal input | Yes (active high/active low) |
| DIP switches | Yes, for basic set up |
Technical
| Battery voltage sense | Yes |
| Battery types | Gel, AGM, Lithium Ion, user defined |
| Power consumption | < 5 mA, < 10 mA in CZone, < 1 mA in MasterBus |
| Temperature range (ambient) | -25 °C to 60 °C; derating > 40 °C |
| Cooling | Natural cooling |
| Protection degree | IP23 |
| Protections | Overload, over-temperature, DC short circuit, reversed polarity (fuse) |
Physical
| Dimensions (h x w x d) | 255 x 165 x 66 mm |
| Weight | 1 kg |
| Compliance | CE, E-Mark, SAE J1171, ISO 8846 ignition protected, ABYC & UKCA |
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