Mastervolt 81205300 – Mac Plus 12/24-30 DC/DC Converter Charger
The Mastervolt Mac Plus 12/24-30 is a high-performance DC/DC converter and battery charger designed for reliable power conversion in mobile and marine environments. It converts 12 V input to a stabilized 24 V output with a maximum current of 30 A and peak power of 725 W, ensuring optimal battery charging even in systems with smart alternators or long cable runs.
Key Features:
- 3-step+ charge profile (bulk, absorption, float) for precise battery management
- Fanless design with passive cooling for silent operation
- Supports flooded, AGM, Gel, spiral and Li-ion (incl. LiFePO₄) batteries
- Parallel operation for over 100 A charging capacity
- Voltage stabilization protects sensitive loads
- Engine run detection and power supply mode
- MasterBus integration for full system monitoring
- Compact size: 255 x 165 x 66 mm; Weight: 2 kg
Applications:
- Smart alternator compensation in Euro 5/6 vehicles
- Distance voltage loss compensation in large systems
- Stable power delivery in dual-voltage environments
Technical Specifications:
| Electrical Specifications | |
|---|---|
| Input Voltage Range | 10 – 16 V DC |
| Nominal Input Voltage | 12 V DC |
| Output Voltage Range | 20 – 30 V DC |
| Nominal Output Voltage | 24 V DC |
| Max Output Current | 30 A |
| Output Power (Nominal / Peak) | 675 W / 725 W |
| Efficiency | >95% (peak 97%) |
| Charge Method | 3-step+ (Bulk, Absorption, Float) |
| Voltage Stabilization | ±2% |
| Ripple (peak-peak) | max. 1% |
| Galvanic Isolation | No |
| Mechanical & Environmental | |
|---|---|
| Cooling | Natural convection (fanless) |
| Protection Degree | IP23 |
| Operating Temperature | -25 °C to +60 °C (derating> 40 °C) |
| Dimensions (H x W x D) | 255 x 165 x 66 mm |
| Weight | 2 kg (4.4 lb) |
| Connections & Interface | |
|---|---|
| Battery Sensor | Yes (included) |
| Voltage Sense Input | Yes |
| Engine Run Signal | Yes (active high/low) |
| DIP Switch Setup | Yes |
| Alarm Contact | Yes, via MasterBus |
| MasterBus Compatible | Yes |
| DC Terminals | 3 x M8 (10–50 mm² cables), 6-pole screw terminal (0.75–1.5 mm²) |
Certifications & Protections:
- Compliance: CE, E-Mark, SAE J1171, ISO 8846 (Ignition Protected)
- Protections: Overload, over-temperature, DC short circuit, reversed polarity (fuse)
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