Mastervolt Ac Master 12/300
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When does the delivery take place?
Delivery times vary depending on the country and destination postal code. They will be shown at checkout and apply only to products currently in stock.
In some cases, the indicated stock includes items stored in external warehouses, and order processing may take up to 4 working days before shipping.
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What are the warranty terms?
All our products come with a 24-month legal warranty. Some brands provide extended warranty. Contact us for more info.
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The Mastervolt AC Master 12/300 IEC is a compact, reliable inverter that provides safe AC power for recreational and semi-professional applications. It converts 12 V battery voltage into pure sine wave 230 V AC current, ensuring stable and safe power even for sensitive electronic equipment.
Equipped with high-frequency switching technology, it eliminates vibrations and hum, ensuring comfort and quiet operation. It's designed to deliver maximum power even in difficult conditions, with an excellent price/performance ratio.
Key Features
- Pure sine wave output – protects sensitive devices and electronics.
- 300 W continuous power with peaks up to 600 W.
- 90% efficiency – maximum energy optimization.
- Automatic energy-saving mode to extend autonomy.
- Easy installation – with IEC socket and plug included.
- Advanced protection against short circuits, overvoltage, overheating and overload.
- Certifications CE, E-mark and ABYC A-31 for maximum safety.
Applications
Ideal for lighting, small appliances, electric cooktops and power tools. Perfect for campers, service vehicles, mobile offices, boats and holiday homes where mains power is unavailable.
General Specifications
| Output voltage | 230 V – 50 Hz (± 0.1%) |
| Waveform | Pure sine wave |
| Nominal battery voltage | 12 V |
| Recommended battery capacity | ≥ 60 Ah |
| Continuous power at 25 °C | 300 W |
| Continuous power at 40 °C | 250 W |
| Peak power (5 s) | 600 W |
| AC connection | Universal IEC socket |
| Galvanic isolation | Yes |
| Dimensions | 210 x 130 x 60 mm |
| Weight | 1.16 kg |
| Certifications | CE, E-mark, ABYC A-31 |
Technical Specifications
| Technology | High frequency, isolated input/output |
| Low voltage thresholds | Shutdown 10 V / Restart 11 V |
| High voltage thresholds | Shutdown 16 V / Restart 14.5 V |
| Rated current | 22.5 A |
| Self-consumption ON | 0.58 A – 7 W |
| Self-consumption energy saving | 0.33 A – 4 W |
| Recommended fuse | 2x 40 A (slow blow) |
| DC cable supplied | 1.5 m standard |
| Harmonic distortion | < 6% |
| Operating temperature | -20 °C to +40 °C (power derating > 40 °C) |
| Cooling | Natural/forced |
| Thermal protection | Shutdown at 50 °C with automatic restart |
| Protection rating | IP23 – vertical wall mounting |
| MasterBus compatible | No |
The Mastervolt AC Master 12/300 IEC is the ideal choice for anyone looking for a compact, efficient and safe inverter, perfect for clean and reliable power on the road, on a boat or in off-grid environments.