Mastervolt CombiMaster 24/3000-60 230V Marine Battery Charger

On the demanding waters, you need a power solution that combines heavy-duty performance with marine-grade reliability. The Mastervolt CombiMaster 24/3000-60 (230 V) is a compact inverter/charger that delivers true sine-wave power, intelligent charging, and seamless transfer between shore power, generator, and inverter, all in a single, easy-to-install unit. Its purpose-built design keeps your essential loads running smoothly, from refrigeration and navigation to entertainment and lighting, even when the power source changes.

Pure, dependable power for every onboard scenario

The CombiMaster outputs a true sine wave at 230 V, with 3000 VA / 2600 W continuous power and a peak capability that can handle brief surges from motors or compressors. Weighing just 9.3 kg and measuring a compact 448 × 284 × 155 mm, it fits neatly into engine rooms or cabinet spaces while leaving room for other equipment. This performance level is designed to keep sensitive electronics—like sensitive navigation gear and on-board inverters—quiet, efficient, and protected from irregularities that can occur with weaker power systems. TRUE SINE WAVE output ensures smooth starts and minimizes nuisance trips or noisy operation for connected devices.

Smart charging that protects your battery bank

Equipped with an intelligent IUoUo, 3-step+ battery charger, the CombiMaster charges faster and safer across 24 V battery banks and a wide range of chemistry types (gel, AGM, flooded, and more). The charger adapts to input conditions with a configurable maximum charge current (up to 60 A) and an automatic battery temperature/voltage compensation, helping extend battery life and readiness for the next use. The unit is designed to support a broad battery range—roughly 180–500 Ah in many marine applications—so you can size your bank without sacrificing charging speed. Robust, fast, and friendly to your battery investment.

Automatic power transfer with built‑in protection

Two core capabilities set the CombiMaster apart in real-world use. First, automatic switching between shore/generator sources and the inverter output happens in about 10 milliseconds, ensuring uninterrupted power to critical loads. Second, Power Assist helps prevent tripping on a weak land line or small generator by sharing load between the mains and the battery-powered inverter, avoiding voltage dips that can disrupt onboard systems. The unit supports generator compatibility and features a robust input/output topology: AC input of up to 25 A, AC output up to 38 A, with a fast transfer routine across a broad voltage range (90–280 V). It also includes protective features for overheating, overload, short-circuit, and battery voltage extremes, plus an IP23 rating for safe vertical mounting in marine environments. The 230 V model is CE and E‑mark certified for global marine use. Reliable, safe, and ship-ready power management.

Seamless marine networking and remote control

The CombiMaster isn’t just a power module—it’s a networked power partner. It integrates with MasterBus for remote monitoring via SmartRemote or EasyView 5 displays, enabling you to monitor charge status, power transfer, and battery health from the helm or a shore station. For system-wide monitoring, MasterBus, CZone, and NMEA 2000 compatibility enable connectivity with popular marine displays and control systems, including 3rd‑party multifunction displays. Quick wiring and heavy-duty connections make installation straightforward, while the integrated communications keep your entire electrical system synchronized. Smart, scalable, and shipboard-ready.

Why this Mastervolt unit stands out

Mastervolt brings decades of marine electrical expertise to a single, compact device. The CombiMaster 24/3000-60 is designed to deliver steady, clean power for demanding loads without sacrificing efficiency or reliability. Its combination of a true sine-wave inverter, 3-step+ charger, rapid AC transfer, and robust offline/online monitoring makes it a standout choice for boaters who need uninterrupted power, even when the grid is unstable or when engine-generated power is fluctuating. The unit’s compact footprint, lightweight build, E‑mark certification, and marine-grade durability mean you can install it with confidence in most common marine layouts without compromises. If you’re upgrading an existing system or building a new one, this all-in-one solution reduces parts count, simplifies maintenance, and delivers predictable performance day after day.

Who benefits most from the CombiMaster 24/3000-60

• Boat owners and crews who rely on stable power for refrigeration, pumps, and navigation equipment while docked or at sea — even when shore power is inconsistent.
• Liveaboards or charter vessels needing a compact, easier-to-install power hub that supports remote monitoring and system integration.
• Mariners seeking a maintenance-friendly, future-proof electrical upgrade with strong safety certifications and broad compatibility with marine networks.

With the Mastervolt CombiMaster 24/3000-60 (230 V), you’re choosing a marine-grade power solution built to endure the rigors of life at sea while delivering the performance, protection, and integration that modern boats demand. It’s a compact, powerful, and intelligent inverter/charger that keeps your essential systems online—no matter the source of the energy that feeds them.