SKU:
EX 81205200
€ 771,38
1-2 weeks delivery time
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+
The Mastervolt 81205200 - Mac Plus 24/12-50 is a high-efficiency, non-isolated DC-DC converter and smart battery charger engineered to deliver stable 12V output from a 24V system. Ideal for Euro 5/6 vehicles and marine systems, it supplies up to 50A with a peak 750W power rating and over 95% efficiency. Featuring a 3-step+ charging curve, DIP switch setup, parallel operation, and MasterBus support, this compact fanless unit ensures safe and optimized charging for all battery chemistries, even during short trips or variable alternator output.
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Mastervolt 81205200 - Mac Plus 24/12-50 DC/DC Converter & Battery Charger (24V to 12V, 50A, 750W) – Replaces 81400352, Non-Isolated, Euro 5/6 Compliant
The Mac Plus 24/12-50 from Mastervolt provides professional-grade DC-DC voltage conversion and battery charging for systems that need stable 12V output from a 24V source. With support for modern fuel-efficient engines and smart alternators, it prevents undercharging and protects both service batteries and connected equipment through its fast, regulated, and safe charging process.
Key Features
- DC-DC converter and 3-step+ battery charger in one compact device
- Stable 12 V output from 24 V input up to 50 A (750 W max)
- Compatible with flooded, Gel, AGM, Lithium Ion (LiFePO₄), and user-defined batteries
- Engine run detection and voltage sense ensure safe operation
- Parallel configuration for systems over 100 A
- Fanless cooling for silent operation
- Efficient operation: >95%, peak 97%
- Non-isolated, optimized for negative earthing systems
- MasterBus compatible for alarms and automation
- Quick DIP switch setup for Euro 5/6 compliance
Electrical Specifications
Parameter Value Nominal Input Voltage 24 V Input Voltage Range 19–30 V Max Input Current 30 A Nominal Output Voltage 12 V Output Voltage Range 10–15 V Max Output Current 50 A Output Charge Current (3-step) 50 A Nominal Output Power 710 W Max Output Power 750 W Efficiency >95% (peak 97%) Ripple (peak-to-peak) Max 1% Voltage Stabilization ±2%
Charging & Control Features
- 3-step+ IUoUo charge curve
- Battery temperature sensor included
- Battery voltage sense line for accurate charging
- Power supply mode for stable DC output
- Engine run detection (active high/low)
Monitoring & Communication
- 3-color LED status indicator
- MasterBus compatible for alarms and integration
- Alarm output via MasterBus
Mechanical & Environmental Specifications
Parameter Value Dimensions (H x W x D) 255 x 165 x 66 mm / 10.0 x 6.5 x 2.6 in Weight 2.0 kg / 4.4 lb Cooling Natural convection (fanless) Ambient Temperature -25 °C to +60 °C (derating > 40 °C) Protection Degree IP23 No-load Consumption < 2 mA DC Consumption < 5 mA
Connections
- 3 x M8 terminals for 10–50 mm² cables (positive in/out, shared negative)
- 6-pole screw terminal for remote, temp sensor, and voltage sense
Certifications & Safety Protections
- Compliant with CE, E-Mark, SAE J1171, ISO 8846 Ignition Protected
- Protections: over-temp, overload, short circuit, reverse polarity (fuse)
The Mac Plus 24/12-50 is the smart, efficient, and robust solution for powering 12V service batteries from 24V alternator systems, particularly in Euro 5/6 vehicles, trucks, campers, or marine vessels. It ensures your batteries charge fully, quickly, and safely—even in the most demanding power environments.
Documents
Mac Plus 24_12-50 - User Manual Size: 1,9 Mb -
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