Mastervolt specializes in advanced electrical solutions for marine and mobile applications. Their products include inverters that convert DC to AC power, chargers for maintaining battery health, and various battery types like AGM and lithium-ion, designed to suit different energy needs. Mastervolt's ChargeMaster series offers efficient charging, and their Combi units combine inverters and chargers for versatile energy management. These components are integral to boats and mobile systems, ensuring a reliable power supply and optimal performance in various conditions.
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1-2 weeks delivery time The Mastervolt Charge Mate 2502 (83302502) is a robust and intelligent battery combiner designed for dual battery systems in 12 V or 24 V setups. It connects batteries during charging and isolates them during discharge, ensuring optimal battery management and preventing main battery depletion. Rated for 500 A continuous current and 2000 A inrush (250 ms), it supports high-demand applications. With operating modes including auto, on, off, and start assist, it enables flexible system integration. Compact (90 x 80 x 85 mm), lightweight (0.65 kg), and with ultra-low power consumption, the Charge Mate 2502 is ideal for mobile and marine installations.
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€ 320,05
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1-2 weeks delivery time The Mastervolt Mass GI 3.5 kW Isolation Transformer (88000355) is a high-frequency galvanic isolator designed to safely connect onboard systems to shore power while eliminating the risk of galvanic corrosion. Operating on 90–255 V AC at 45–65 Hz, the unit supports 3.5 kW continuous power (16 A @ 230 V) with >93% efficiency. Up to four units can be parallel-coupled for increased capacity (14 kW total). Lightweight (6 kg) and compact (340 x 261 x 144 mm), it features integrated Soft Start, silent operation, MasterBus compatibility, and professional-grade wiring terminals, making it ideal for modern marine AC installations.
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€ 1.570,80
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1-2 weeks delivery time The Mastervolt Mass GI 7 kW (88000705) is a high-performance galvanic isolation transformer engineered for safe and corrosion-free connection between shore power and onboard AC systems. With an output capacity of 7000 VA (32 A at 230 V), it operates over a broad input range (90–255 V, 45–65 Hz) and achieves >93% efficiency through high-frequency switching technology. Featuring Soft Start, MasterBus compatibility, and compact aluminum housing, this unit is ideal for high-load marine installations. Its compact form factor (340 x 261 x 250 mm) and silent operation ensure flexible mounting and long-term system protection.
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€ 2.805
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1-2 weeks delivery time The Mastervolt Shore Cable Bag (121160930) is a durable, stylish storage solution designed to organize and protect your shore power cable. Made from rugged canvas and finished with premium leather handles, the bag offers both practicality and aesthetics. Measuring 36 x 46 x 11 cm, it provides ample space for coiled cables while remaining compact enough for easy onboard storage. Ideal for marine and RV use, this bag helps prevent cable damage, tangling, and mess during transport or stowage.
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€ 35,06
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1-2 weeks delivery time The Mastervolt Shore Power Inlet 32A 230V (121320000) is a robust and corrosion-resistant solution for connecting your vessel to shore power. Crafted from high-grade stainless steel, this inlet ensures a secure and durable connection, capable of handling up to 32 amperes at 230 volts. Its 2+PE configuration provides a reliable grounding path, enhancing safety during operation. Designed for marine environments, it withstands harsh conditions while maintaining optimal performance.
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€ 230,71
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1-2 weeks delivery time The Mastervolt Shore Power Cordset 25m 3x4mm² (121320250) is a durable and reliable solution for connecting your vessel to shore power. Designed to handle up to 25 amperes at 230 volts, this yellow cordset features a robust 3x4mm² cable construction, ensuring efficient power transmission. The integrated LED power indicator provides a clear visual confirmation of active power flow, enhancing safety during operation. Its molded plugs offer secure connections, and the UV-resistant, wear-proof outer jacket ensures longevity even in harsh marine environments.
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€ 442,21
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1-2 weeks delivery time The Mastervolt Shore Fix 16A/30mA (Art. 124001000) is a preassembled earth leakage circuit breaker designed to safeguard electrical installations against leakage currents, overloads, and short circuits. Housed in a robust IP55-rated enclosure, it is ideal for marine and RV environments where safety and reliability are paramount. The unit features a sensitivity of 30 mA and a nominal current rating of 16 A, ensuring prompt disconnection in the event of a fault. Its compact design and straightforward installation make it a practical choice for enhancing onboard electrical safety.
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€ 300,71
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1-2 weeks delivery time The Mastervolt GMDSS Front Panel (21709150) is a professional-grade digital monitoring interface designed for integration with the Mass 24/25-2 DNV GL battery charger. This front panel displays real-time voltage and current, and includes GMDSS-compliant alarms for DC voltage, charger failure, and AC mains loss. Compatible with 12 V and 24 V systems, the unit features an LCD screen, status LEDs, and potential-free contacts for alarm signaling. Delivered with a 500 A / 50 mV shunt and full interface, this panel ensures SOLAS-compliant system safety and precise battery monitoring in demanding marine applications.
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€ 564,09
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1-2 weeks delivery time The Mastervolt GMDSS Front Panel for Mass 24/50 (Art. 21709200) provides professional-grade monitoring of battery and charger status with full GMDSS-compliant alarm functionality. Designed for SOLAS-compliant marine installations, it displays voltage and current via a digital LCD with status LEDs and provides relay outputs for DC voltage alarms, charger faults, and AC mains loss. Automatically detecting 12 V or 24 V systems, the panel offers precision measurement and includes a 500 A/50 mV shunt and interface. Engineered for seamless integration into the Mass 24/50-2 charger, this panel ensures maximum system safety and compliance.
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€ 564,09
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1-2 weeks delivery time The Mastervolt GMDSS Front Panel (Art. 21709300) is a professional digital monitoring unit for the Mass 24/75, 24/100, and 24/100-3ph battery chargers, designed to meet GMDSS and SOLAS compliance standards. It features a digital LCD display for real-time read-out of voltage and current, along with GMDSS alarm indicators and potential-free relay outputs for DC voltage drop, charger failure, and AC mains loss. With automatic 12 V/24 V detection, ±0.4 V voltage accuracy, and a ±500 A current range via a 500 A / 50 mV shunt, this panel ensures high-precision monitoring in safety-critical marine environments.
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€ 564,09
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1-2 weeks delivery time The Mastervolt Alternator Temperature Sensor (41500400) is designed to enhance the protection of non-Mastervolt alternators when used in conjunction with the Alpha Pro charge regulator. By continuously monitoring the alternator temperature, the sensor helps prevent overheating and prolongs the life of your charging system. It is especially recommended for custom or third-party alternators where thermal protection is not built-in. Easy to install and compatible with Alpha Pro regulators, this sensor ensures safer and smarter charging in high-demand marine environments.
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€ 31,35
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1-2 weeks delivery time The Mastervolt Temperature Sensor 6m (41500500) is a precision battery temperature sensor designed to optimize charging performance and battery protection. This sensor is included with a wide range of Mastervolt products, including ChargeMaster (Plus), Mass Chargers, CombiMaster, Mass Combi Ultra, and Mass Combi Pro. It is also supplied with the MacPlus series, although without the RJ11 connector. Featuring a durable 6-meter cable, it ensures accurate thermal compensation for charging in varying environmental conditions.
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€ 41,30
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1-2 weeks delivery time This Mastervolt Bosch Adapter (45510500) is a high-quality connection cable designed to interface the Alpha Pro II or Alpha Pro III regulators with alternators from other brands using the standard Bosch plug. Engineered for secure and reliable integration, this adapter allows seamless communication and regulation between the Mastervolt system and third-party alternators. Compact and easy to install, it ensures electrical compatibility with minimal configuration. Cable length and connector type conform to industry Bosch standards for marine and industrial alternators.
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€ 20,69
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1-2 weeks delivery time The Mastervolt 46228082 – Alpha Compact 28/80 VP is a high-efficiency 24V alternator, delivering up to 85A at 6000 rpm, specifically designed for integration with Volvo Penta engines. Compact, lightweight, and optimized for continuous high-output charging, this alternator includes a standard multi-groove pulley (art. no. 48420170) and features integrated dual-fan cooling and temperature monitoring. It provides a plug-and-play solution for marine and industrial applications, especially when paired with the optional Alpha Pro III charge regulator.
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€ 2.168,27
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1-2 weeks delivery time The Mastervolt 46228112 – Alpha Compact 28/110 VP is a high-efficiency 24V alternator delivering 110A at 6000 rpm, designed specifically for Volvo Penta engines. With a compact design, integrated dual-fan cooling, and an included multi-groove pulley (art. no. 48420170), it ensures maximum reliability in marine and industrial power systems. Paired with the optional Alpha Pro III regulator, it provides intelligent 3-step charging suitable for all battery types, including Lithium Ion. Its patented magnetic design enables reduced weight, smaller size, and lower fuel consumption—ideal for continuous-duty energy storage applications.
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€ 2.722,25
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1-2 weeks delivery time The Mastervolt 46228152 – Alpha Compact 28/150 VP is a heavy-duty 24V alternator delivering 150A at 6000 rpm, purpose-built for Volvo Penta engine integration. It features a factory-installed multi-groove pulley (art. no. 48420170), robust dual-fan cooling, and an integrated RJ12 temperature sensor. This high-performance alternator supports plug-and-play configuration when combined with the Alpha Pro III regulator (sold separately), and is suitable for Lithium Ion and all common battery types. Designed to excel in harsh marine, mobile, and industrial environments, it ensures stable power output even at high operating temperatures and idle RPMs.
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€ 3.196,30
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1-2 weeks delivery time The Mastervolt 46614200 – Alpha Compact 14/200 is a high-output 12V alternator delivering 200A at 6000 rpm, and comes pre-packaged with the Alpha Pro III regulator for smart 3-step charging. This robust alternator includes a factory-installed multi-groove pulley and features an integrated dual-fan cooling system, compact automotive-style housing, and an RJ12-connected temperature sensor. Designed for direct mounting and optimized for Lithium Ion and all common battery types, it provides a complete plug-and-play solution for marine and industrial power systems with high charge demands.
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€ 3.468,38
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1-2 weeks delivery time The Mastervolt 46628110 – Alpha Compact 28/110 is a compact high-output 24V alternator delivering 110A at 6000 rpm and includes the Alpha Pro III charge regulator for intelligent 3-step battery charging. Designed for applications with demanding power requirements, it features integrated dual-fan cooling and an RJ12-connected temperature sensor. This model is suitable for all battery types, including Lithium Ion, and supports swivel arm mounting. Note: this version is supplied without a pulley, making it flexible for custom or OEM integration.
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€ 3.166,85
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1-2 weeks delivery time The Mastervolt 48400030 Multigroove Pulley is a precision-engineered component designed for optimal performance with Mastervolt Alpha alternators, specifically models 12/130, 24/75, 24/110, and 24/150. Constructed from corrosion-resistant metal alloys, this pulley ensures smooth and efficient power transfer, reducing vibration and wear on engine components. Its multigroove design enhances torque distribution, making it ideal for marine and off-grid applications where reliable power delivery is crucial.
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€ 39,90
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1-2 weeks delivery time The Mastervolt Alpha 12/130 Multi-Belt (48612131) is a high-performance 12V alternator delivering 130A of charge current, optimized for dual battery systems. Supplied with the advanced Alpha Pro III regulator, it ensures fast, complete charging and extended battery life. Designed for all engine types, this alternator features dual A-section belts, multigroove pulley (Ø89 mm), and fan-based forced cooling for reliable output even at low RPMs and ambient temperatures above 40°C. Weighs 10.1 kg; mounting: six o’clock.
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€ 1.779,77
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What are the key features of Mastervolt inverters, and how are they adapted for use in marine environments?
Mastervolt inverters are renowned for their efficiency, reliability, and compatibility with various power sources like mastervolt lithium or AGM batteries. Key features include advanced sine wave technology for smooth power conversion, integration with Mastervolt ChargeMaster systems for optimized charging, and robust construction to withstand the harsh marine environments. Their design caters specifically to maritime needs, incorporating corrosion-resistant components and cooling mechanisms, making them a preferred choice for both recreational and professional vessels.
For a reliable power solution, consider a Mastervolt Inverter to enhance your onboard electrical system.
How does the Mastervolt ChargeMaster series contribute to the efficiency of battery charging systems on boats and mobile platforms?
The Mastervolt ChargeMaster series is specially designed to enhance the efficiency of battery charging systems on boats and mobile platforms. Utilizing advanced technology, the ChargeMaster integrates seamlessly with various battery types such as mastervolt lithium and AGM, providing precise charging and extending battery life. Its multi-stage charging process ensures optimum charging performance, while compatibility with mastervolt inverters and alternators allows for a flexible and cohesive energy management system. These features contribute to a reliable and energy-efficient charging solution tailored for the demanding marine environment.
In what ways do Mastervolt lithium and AGM batteries differ, and what are the specific applications for each type within the maritime industry?
Mastervolt lithium and AGM batteries differ primarily in their technology and applications within the maritime industry. Mastervolt lithium batteries are known for their lightweight, high energy density, and fast charging capabilities, making them suitable for applications that demand a rapid energy supply and longer cycle life, such as in high-performance yachts or electric propulsion systems. On the other hand, Mastervolt AGM (Absorbent Glass Mat) batteries offer robust construction and maintenance-free operation, generally used in applications requiring deep-cycle and reliable energy storage, like auxiliary power systems or navigation equipment. These differences allow for flexibility in matching the specific battery technology to the unique needs of various marine environments and vessels.
For advanced energy solutions tailored to marine applications, explore our Mastervolt Battery, designed for reliable power storage and optimal performance.