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Home » Shop » Mastervolt Power Products » Mastervolt Magic 12/12-20 Converter Charger – 81300400

Mastervolt Magic 12/12-20 Converter Charger – 81300400

Original price was: $377.20.Current price is: $247.10.

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SKU: EX 81300400 Category:
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Mastervolt 81300400 – Magic 12/12-20 DC Converter & 3-Step Charger (20A, 300W) – Galvanically Isolated

The Mastervolt Magic 12/12-20 is a highly reliable DC-DC converter and 3-step battery charger engineered for professional applications in marine, automotive, and off-grid systems. It features galvanic isolation between input and output, advanced microprocessor control, and a suite of programmable functions. The Magic series guarantees consistent voltage output even during wide input fluctuations and heavy load changes, extending the lifespan of connected electronics and lighting systems.

Key Features

  • Galvanic isolation between input and output circuits
  • Stable output voltage (2% regulation under extreme conditions)
  • 3-step battery charging for flooded, Gel, AGM, Lithium Ion batteries
  • Programmable output via MasterAdjust software
  • Parallel operation for scalable power output (>100 A possible)
  • Energy-efficient dimmer function (adjustable 4–13 V)
  • Touch-proof, interference-suppressed, and CE-compliant
  • Remote monitoring via PC and MasterBus Serial Interface
  • Compact design: 227 x 154 x 81 mm, 1.8 kg

Electrical Specifications

Parameter Value
Nominal Input Voltage 12 V
Input Voltage Range 11–16 V
Output Voltage Range 10–15 V
Nominal Output Voltage 13.6 V (adjustable)
Max Output Current 20 A
Output Charge Current (3-step) 16 A
Output Power 300 W
Efficiency >90% (peak 92%)
Output Ripple (peak-to-peak) Max 1%
Voltage Stabilization Accuracy ±2%

Mechanical & Environmental Specifications

Parameter Value
Dimensions (H x W x D) 227 x 154 x 81 mm / 8.9 x 6.1 x 3.2 in
Weight 1.8 kg / 4.0 lb
Cooling Maintenance-free vario fans
Temperature Range -25 °C to +60 °C (derating>40 °C)
Protection Degree IP21
No-load Consumption <2 mA
DC Consumption <115 mA

Additional Features

  • Supports both positive and negative grounding
  • Supports dimming via external momentary switch (DIP-switch activated)
  • Programmable setpoints and delay via MasterAdjust
  • Alarm contact through MasterBus
  • MasterBus compatible (with Serial Interface)
  • Connection type: Screw terminals (up to 16 mm² / AWG 5)

Whether as a stabilised power supply or a reliable charger for mission-critical batteries, the Magic 12/12-20 offers unmatched reliability, energy efficiency, and configurability in a compact form factor. Ideal for heavy-duty DC systems in mobile, marine, or industrial applications.