Mastervolt
Mastervolt Mac Plus Voltage Converter (24V - 48V DC / 15A)
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Mac Plus 24/48-15 is a non-isolated DC-DC charger that steps a 24 V supply up to charge a 36 V or 48 V battery bank at up to 15 A (900 W). Its bi-directional technology lets either side act as input or output, so one unit can keep both banks supplied. The proven Mastervolt 3-step+ algorithm charges even completely flat batteries, and engine-run detection prevents the source battery from being drained.
Built around a fanless aluminium housing, it operates silently and resists dust and water ingress, supporting flooded, Gel, AGM and Lithium Ion (incl. LiFePO4) batteries. Adjustable current limits suit Euro 5/6 smart alternators, and up to four units can be paralleled for greater capacity.
MasterBus, CZone and NMEA 2000 compatibility provides 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
- 24 V input to 36/48 V output, 15 A / 900 W maximum
- Proven Mastervolt 3-step+ charge algorithm charges flat batteries
- Engine run detection protects the source 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 | 24 V DC |
| Input voltage range | 16-32 V |
| Max. input current | 50 A |
| Nominal output voltage | 36/48 V |
| Output voltage | 30-60 V DC |
| Max. output current | 15 A |
| Max. output power | 900 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 | 2 kg |
| Compliance | CE, E-Mark, SAE J1171, ISO 8846 ignition protected, ABYC & UKCA |
){kind=link}