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Harnessing Excellence: Mastervolt's Advanced Marine Power Solutions
Mastervolt's commitment to excellence extends to their isolator technology, ensuring optimal performance and reliability in power distribution systems. Additionally, with features like Mastervolt’s Chargemaster guaranteeing fast charging times and innovative 3-bank battery chargers, our website offers cutting-edge solutions for marine power needs. Whether it's the next generation of battery chargers or integrated systems like the Combimaster 24V, Mastervolt's range of products reflects their vast expertise and commitment to delivering top-quality electrical solutions for marine applications.Email us: info@yacht-supply24.com or fill our Feedback form.
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1-2 weeks delivery time The Mastervolt 48420240 isolating kit is specifically designed for Alpha Compact alternators used with Volvo Penta engines. These alternators have their negative pole internally connected to the housing, which may cause grounding issues in isolated power systems. This 6-piece kit provides full electrical isolation by including two M8 and four M10 isolating bushings, allowing safe and isolated operation of the alternator. Compact, durable and essential for isolated installations, especially in marine and hybrid power systems. |
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1-2 weeks delivery time The Mastervolt Alpha 12/90 (48612090) is a high-performance 12V alternator delivering 90A charging current and featuring isolated negative operation. Designed for fast, efficient charging even at low engine rpm, it’s ideal for marine, mobile, and off-grid applications. Included is the Alpha Pro III charge regulator, ensuring intelligent 3-stage charging for longer battery life. Supports flexible mounting, forced cooling, and connection to multiple battery banks via Battery Mate or isolators. Weight: 5.5 kg. Pulley diameter: 73 mm. |
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1-2 weeks delivery time The Mastervolt Alpha 24/150 (48624150) is a high-output 24V alternator delivering up to 150A charging current, ideal for powering multiple battery banks and onboard systems in marine and off-grid installations. Equipped with isolated ground and included Alpha Pro III charge regulator, this unit enables rapid, efficient charging even at low engine RPM. The alternator features a large 89 mm pulley, 2×A belt configuration, and multiple mounting options. Weight: 13.1 kg. |
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1-2 weeks delivery time The Mastervolt 55010900 Transfer System offers seamless automatic switching between power sources up to 9 kW, adapting 120 V or 230 V AC grid input to the onboard AC system. Designed for use with IVET transformers, this unit enables safe, reliable connection to both European and American shore power grids. Its built-in Soft Start functionality prevents inrush current surges, safeguarding upstream breakers and fuses. Compact and robust, it supports 80 A at 120 V and 40 A at 230 V. Dimensions: 400×300×210 mm. Weight: 12.5 kg. |
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1-2 weeks delivery time The Mastervolt 6369230060 plug is designed to provide field-installable, IP65-rated waterproof protection for MasterBus communication ports on MLI Ultra lithium-ion batteries. Compatible with harsh marine, industrial, or off-grid environments, it safeguards against water ingress, dust, and moisture. Supplied with the plug and connector; MasterBus cable must be sourced separately. |
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1-2 weeks delivery time The Mastervolt MLS 12/390 (65010030) is a compact 12 V, 30 Ah Lithium Iron Phosphate (LiFePO₄) battery designed for applications where space, weight, and service life are critical. With an energy capacity of 384 Wh and fast charging up to 30 A, it’s a direct drop-in replacement for lead-acid batteries. Featuring IP65 protection and integrated electronic safety disconnect, this battery is ideal for mobile, marine, and industrial backup power systems. |
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1-2 weeks delivery time The Mastervolt MLS 24/260 (65020010) is a compact 24 V, 10 Ah LiFePO₄ battery ideal for applications where space, weight, and long life are priorities. Offering 256 Wh of energy in a waterproof IP65 housing, it includes an integrated Battery Management System (BMS) and automatic safety disconnect. With up to 2000 cycles at 80% DoD, it’s a powerful and safe alternative to traditional lead-acid batteries, supporting unlimited parallel configurations. |
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1-2 weeks delivery time The Mastervolt 6502200600 parallel cable kit provides all network cabling necessary to link two identical CombiMaster inverters (3500, 4500, or 5000 W) in a parallel setup. Ideal for redundancy or increased AC output, this kit enables synchronized operation in 120 VAC systems. Note: AC and DC power cables must be sourced separately |
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1-2 weeks delivery time The Mastervolt MLI Ultra 24/5500 (66025500) is a premium 5.5 kWh LiFePO₄ battery system engineered for heavy-duty marine and off-grid power applications. Designed with integrated battery monitoring, CANbus communication (MasterBus, NMEA 2000, CZone), and a high-performance BMS, it supports charge/discharge rates up to 2.5C. This IP65-rated unit features a self-learning cell balancing algorithm for longer cycle life and faster charge cycles. Mounting is flexible, and unlimited parallel or 10-unit series connection is supported. Safety relay (SKU 7702B-BSS) is required for installation. |
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1-2 weeks delivery time The Mastervolt 77031000 GPRS Module enables SMS-based monitoring and control of MasterBus systems via mobile phone. It transmits real-time data—including system status, alarms, and shortcuts—that allow remote commands or notifications. The unit is compatible with European 2G/GPRS networks (service expected until 2025), and includes antenna, MasterBus cable, terminator, and manual. SIM card not included. Not available in regions where 2G/GPRS is sunset (Asia, Americas). |
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1-2 weeks delivery time The Mastervolt 77049000 Class‑T fuse provides high-capacity, reliable protection for lithium-ion battery systems with up to 500 A continuous current rating and 160 V DC voltage tolerance. Engineered to withstand up to 20 kA short-circuit currents, it is ideal for heavy-duty installations when used with lithium batteries or installed in T‑fuse holders on MasterShunt systems. A robust spare, it ensures maximum safety in demanding environments. |
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1-2 weeks delivery time The Mastervolt 77049355 is a robust 355 A ANL fuse designed for high-current DC distribution systems. It offers reliable overload and fault protection in marine, industrial, and off-grid setups, fitting into Mastervolt DC Distribution modules or standard ANL fuse holders. Rated to handle harsh environments and heavy-duty usage. |
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1-2 weeks delivery time The Mastervolt IVET 10 kW Isolation Transformer (Part No. 85001000) ensures safe electrical separation between shore and onboard systems by providing galvanic isolation. Built with high-efficiency E-core technology, this heavy-duty, multi-voltage transformer supports 120/220/240 V AC inputs/outputs and protects against corrosion caused by stray currents. With natural convection cooling and over 93% efficiency, it is ideal for marine and industrial power systems. For optimal performance, Mastervolt recommends pairing with an optional Soft Start module to suppress inrush currents. |
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1-2 weeks delivery time The Mastervolt IVET 18 kW (85001800) is a heavy-duty open-frame E-core isolation transformer built for reliable galvanic isolation between shore power and onboard electrical systems. Its multi-tap architecture supports a range of voltages (120 V, 220 V, 240 V), ensuring global compatibility. Designed for large-scale marine and industrial systems, the transformer features high efficiency (> 93%), natural cooling, and a rugged design without casing for flexible self-installation. Mastervolt recommends pairing with a Soft Start module to mitigate inrush current during startup and protect upstream circuit protection. |
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1-2 weeks delivery time The Mastervolt IVET 22 kW Isolation Transformer (Part No. 85002200) is the highest-capacity model in the IVET Heavy-Duty Series, designed for galvanic isolation between shore and onboard electrical systems. With support for 120 V, 220 V, and 240 V connections and > 93% efficiency, it provides robust and safe electrical integration for commercial vessels, superyachts, and high-demand off-grid systems. The unit features a compact open-frame design (IP00) and natural cooling, and is intended for self-installation in ventilated compartments. Optional Soft Start is recommended to avoid tripping shore-side protection. |
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1-2 weeks delivery time The Mastervolt MLS 12/80 (65010006) is an ultra-compact 6 Ah lithium iron phosphate battery engineered for lightweight, space-saving installations in mobile, marine, and industrial applications. Featuring integrated Battery Management System (BMS), electronic safety disconnect, and IP65 waterproof housing, this 12 V battery offers high reliability, fast charging, and extended cycle life. It's ideal for replacing small sealed lead-acid batteries in backup or portable systems, with unlimited parallel scalability. |
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1-2 weeks delivery time The Mastervolt MLS 12/130 (part number 65010010) is a compact 10 Ah lithium iron phosphate (LiFePO₄) battery offering all the advantages of Mastervolt’s MLS series in a durable, IP65-rated package. Designed for low-capacity, space-constrained installations, it features a built-in BMS, automatic safety disconnect, and unlimited parallel capability. Ideal for telecom, UPS, marine, or off-grid backup power, this battery is a high-efficiency, long-life alternative to traditional lead-acid units. |
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1-2 weeks delivery time The Mastervolt MLI-E 12/1200 (part number 66011200) bridges the gap between compact MLS batteries and high-capacity MLI Ultra models, offering 1.2 kWh of Lithium Iron Phosphate energy in a rugged, mobile-friendly package. Supporting CANopen, NMEA2000/CZone, Bluetooth, and optional MasterBus integration, this 90 Ah battery is ideal for mission-critical off-grid and marine power systems. It delivers over 3,500 deep cycles at 80% DoD, recharges fully in under an hour, and includes an internal BMS with automatic safety disconnect—no external relays needed. |
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What are the key features of the Mastervolt Chargemaster Plus and Combimaster battery chargers?
The Mastervolt Chargemaster Plus and Combimaster battery chargers represent the next generation of charging solutions for boats and yachts. These chargers integrate multiple functions into a single device, offering advanced power management capabilities for marine applications. With features such as fast charging, integration with multiple energy sources, and compatibility with various battery types, including the latest lithium-ion technology, Mastervolt sets a new standard in electrical systems optimization for marine vessels. The Mastervolt Chargemaster Plus and Combimaster battery chargers redefine marine power management with their innovative design and advanced features. By integrating multiple functions into a single device, these chargers offer unparalleled versatility and efficiency for boat and yacht owners. Whether it's the integration of solar charge capabilities, compatibility with various battery types, or the ability to replace auxiliary chargers, Mastervolt's chargers lead the industry in providing comprehensive electrical solutions tailored to the unique needs of marine environments.
How does Battery Mate enhance the performance of onboard battery systems?
Battery Mate enhances the performance of onboard battery systems by ensuring efficient charging and management of battery banks. It integrates multiple functions into a single device, optimizing power conversion and distribution on marine vessels. With features like system monitoring and simplified operation, Battery Mate contributes to the reliability and longevity of battery systems, providing optimal performance for yacht and boat electrical systems. Battery Mate stands out in enhancing onboard battery systems by its ability to seamlessly integrate multiple functions into a single device, optimizing power management on marine vessels. Whether it's the integration with battery chargers that consolidate multiple functions or the incorporation of innovative features like system monitoring and simplified operation, Battery Mate ensures efficient charging and distribution of power throughout the vessel. This comprehensive approach not only enhances performance but also contributes to the longevity and reliability of battery systems, making it an indispensable component for yacht and boat electrical systems.
How does CZone streamline the management of onboard electrical systems in yachts and boats?
CZone revolutionizes the management of onboard electrical systems in yachts and boats by offering a comprehensive digital control and monitoring solution. With its advanced technology, CZone enables users to effortlessly control various electrical functions and monitor power usage through a centralized interface. By integrating multiple functions into a single device, CZone enhances convenience, efficiency, and safety, making it an indispensable component of modern marine power systems. CZone stands at the forefront of streamlining onboard electrical systems management in yachts and boats, thanks to its innovative approach to digital control and monitoring. By seamlessly integrating multiple functions into a single device, including battery chargers with integrated functions, CZone simplifies the complexity of power management on marine vessels. Whether it's the easy integration with marine products or the ability to monitor critical parameters like temperature and power consumption, CZone offers a wide range of features that enhance convenience, efficiency, and safety, making it an indispensable solution for modern marine power systems.
How do Mastervolt battery chargers manage different battery types such as AGM and lithium?
AGM/Gel batteries use voltage-limited, temperature-compensated absorption. Lithium batteries use direct communication (CAN-bus) for BMS-guided protocols. Flooded Lead-Acid batteries execute a controlled equalization phase periodically.
What are the advantages of using pure sine wave inverters like the Mass Combi or AC Master for onboard AC power?
Pure sine wave inverters generate reliable electrical power indistinguishable from shore utility, allowing sensitive electronics and appliance motors to run smoothly without risk of damage. Mastervolt offers these power conversion products specifically for the boater and RV owner who demands clean electricity for every accessory. Their advanced electrical products apply a sophisticated 3-step charging algorithm to optimize power storage health, ensuring your system performs reliably for years.
How do DC-DC converters help convert and stabilize voltage in 12 V and 24 V marine systems?
DC-DC converters act as a precise regulator, ensuring stable voltage for sensitive devices despite input fluctuations from the alternator or battery technologies. Their role is essential for protecting accessory electronics, enabling system integration between different voltage banks, and efficient power conversion in marine and mobile applications. These power conversion products are designed to interface seamlessly with NMEA 2000 networks for system monitoring. The Slimline MVG series exemplifies how these compact units deliver multiple kw of stable power through robust cable connections.
What role do battery isolators and proper battery terminals play in a safe Mastervolt installation?
A proper shunt and robust terminals ensure accurate monitoring and secure connections, fundamental for battery management and system lifespan. This isolation and monitoring are central to integrating advanced lithium-ion batteries and power conversion systems safely into a Masterbus network. These batteries and power conversion products form the core of any dependable off-grid or mobile vehicle energy system.
How does automatic switching between AC power sources (120 V and 240 V) work with Mastervolt combis?
The combi unit continuously monitors the incoming socket, automatically and seamlessly selecting the correct source to maintain an uninterrupted power supply. This provides hassle-free connection at any dock, protection for the vessel's internal wiring, and consistent reliable power for all loads. This smart switching is a core feature of Mastervolt systems, designed for global use in RV's and vessels. These integrated products are designed to provide total energy autonomy for the user, whether at sea or on the road.