SKU:
EX 81205100
€ 771,38
1-2 weeks delivery time
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+
The Mastervolt 81205100 - Mac Plus 12/12-50 is a powerful, non-isolated DC-DC converter and 3-step battery charger designed to boost and stabilize charging voltage for 12V service batteries. Delivering up to 50A at 725W with over 95% efficiency, it’s ideal for modern vehicles and vessels equipped with Euro 5/6 smart alternators. With DIP-switch configuration, MasterBus compatibility, parallel operation capability, and robust M8 connections, it ensures safe, quiet, and reliable charging—even during short trips or under low alternator activity.
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Mastervolt 81205100 - Mac Plus 12/12-50 DC/DC Converter & Battery Charger (12V, 50A, 725W) – Non-Isolated, Euro 5/6 Compliant
The Mac Plus 12/12-50 from Mastervolt is a high-performance DC-DC converter and battery charger designed to overcome voltage drop and poor charging performance in service batteries, especially in vehicles and vessels with smart alternators. Supporting 3-step+ charging with current-limited, stabilized output, this compact, fanless unit is optimized for silent, efficient operation in demanding mobile and marine applications.
Key Features
- DC-DC converter and 3-step+ charger in one
- Delivers up to 50 A output at 12 V (725 W max power)
- Supports flooded, Gel, AGM, Lithium Ion (incl. LiFePO4)
- Engine run detection ensures starter battery protection
- High efficiency > 95%, peak 97%
- Fanless design for silent operation
- Non-isolated: compact, cost-efficient, ideal for negative-earthing systems
- Parallel configuration for >100 A systems
- MasterBus compatible for smart control and alarms
- DIP switches for simple setup, including Euro 5/6 compliance
Electrical Specifications
Parameter Value Nominal Input Voltage 12 V Input Voltage Range 10–16 V Max Input Current 50 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 675 W Max Output Power 725 W Voltage Stabilization Accuracy ±2% Ripple (Peak-to-Peak) Max 1% Efficiency > 95% (peak 97%)
Charging & Control Features
- 3-step+ charge curve for safe and fast charging
- Supports temperature compensation (sensor included)
- Voltage sensing for accurate charging at battery terminals
- Power supply mode available
- Engine run signal input (active high/low)
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 Range -25 °C to +60 °C (derating > 40 °C) Protection Degree IP23 No-load Consumption < 2 mA
Connections
- 3 x M8 terminals for 10–50 mm² cable (DC input/output, negative)
- 8-pole screw connection for remote, temp sensor, voltage sensing
Certifications & Safety Features
- Compliant with CE, E-Mark, SAE J1171, ISO 8846
- Protections: overload, over-temp, DC short circuit, reverse polarity (fuse)
- Status indication: 3-color LED
- MasterBus alarm and monitoring support
Built for today's smart vehicles and power-demanding environments, the Mac Plus 12/12-50 offers silent, high-efficiency battery charging with full system integration capabilities. It's the optimal choice for ensuring your service battery gets the voltage and current it needs—every time.
Documents
Mac Plus 12_12-50 - User Manual Size: 1,9 Mb -
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