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AC Master 24/300 pure sine wave inverter 300 W 24 V - Mastervolt

Mastervolt AC Master 24/300 inverter delivering 300 W continuous from a 24 V input (recommended battery capacity ≥30 Ah), with pure sine wave output for sensitive onboard loads. 600 W peak for 5 seconds and 91% efficiency. Integrated galvanic isolation (high‑frequency technology) protects instruments and sensitive loads; natural or forced cooling operates from −20 °C to 40 °C. Built‑in protections against short circuit, overload, over‑temperature and abnormal battery voltages. CE, E‑mark and ABYC A‑31 (North American marine standard) certified. Weight 1.16 kg, dimensions 210 x 130 x 60 mm.

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Product Details

Weight
1.16 kg.
Degree of protection
IP23
Efficiency
91%
Technology
Alta frequenza con ingresso e uscita completamente isolati
Dimensions
210 x 130 x 60 mm.
Potenza continua
300 W
Tensione nominale batteria
24 V
Capacità batteria consigliata
≥30 Ah
Tensione uscita
230 V 50 Hz
Forma d'onda
Onda sinusoidale pura
Corrente ingresso a carico nominale
11 A
Tensione bassa spegnimento
20 V ±0.5 V
Tensione bassa accensione
22 V ±0.5 V
Tensione alta spegnimento
32 V ±0.5 V
Tensione alta accensione
29 V ±0.5 V
Range termico
-20 °C / +40 °C
Fusibile DC minimo
40 A slow blow
Isolamento galvanico
Ventilatore
Naturale/Forzato
Protezioni
Sovratemperatura, sovraccarico, cortocircuito, tensione batteria alta/bassa
Certificazioni
CE, E-mark, ABYC A-31
Compatibilità MasterBus
No

Description

With 24 V DC input and 230 V AC pure sine wave output, the Mastervolt AC Master 24/300 inverter delivers 300 W continuous and a 600 W peak for 5 seconds, making it suitable for onboard recreational and semi‑professional applications that require reliable mains‑grade power for sensitive electronic loads.

High‑frequency technology provides full galvanic isolation between the battery side and the AC side: instruments and sensitive loads remain protected from DC‑side interference. Its 91% efficiency and energy‑saving mode — 4 W at no‑load — keep consumption low during stand‑by. The cooling system, natural or forced depending on conditions, operates from −20 °C to 40 °C with automatic protective shutdown at 50 °C. Continuous power available at 40 °C: 250 W.

The LED panel indicates operating status and alarms (4 modes). IP23 ingress protection requires vertical wall mounting in areas shielded from direct splashes. For installation, a battery of at least 30 Ah and a 40 A slow‑blow DC fuse on the input side are recommended. CE, E‑mark and ABYC A‑31 (North American marine standard) certified.

Main features

  • Pure sine wave compatible with sensitive loads such as electronic instruments, audio/video equipment, switching battery chargers and induction motors
  • High‑frequency galvanic isolation with complete separation between DC input and AC output to protect loads from onboard system disturbances
  • 600 W peak for 5 seconds to handle inrush of hard‑starting loads, with 300 W nominal continuous power
  • 91% efficiency and energy‑saving mode with 4 W no‑load draw to limit battery discharge during low‑use periods
  • Comprehensive electrical protections against short circuit, overload, over‑temperature and out‑of‑range battery voltage, with independent shutdown and restart thresholds
  • Compact, lightweight form factor — 210 x 130 x 60 mm, 1.16 kg — with 1.5 m DC cable included for simplified wall installation

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