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 Alpha 24/75 Multi-Belt (48624076) is a high-efficiency 24V alternator delivering 75 A, specifically designed for fast charging of both starter and service batteries—even at idle RPM. Supplied with the Alpha Pro III smart regulator, it ensures adaptive 3-step charging and extended battery life. Featuring dual A-section belts, a multigroove 89 mm pulley, and fan-forced cooling, this 10.1 kg alternator is ideal for marine and mobile environments with elevated temperatures. Mounting position: six o’clock.
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€ 1.690,01
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1-2 weeks delivery time The Mastervolt Soft Start 0-13kW (55003300) is an automatic inrush current limiter designed to suppress peak currents from isolation transformers during startup. Operating at 230 V AC with a power range of 2.5 kW to 13 kW, it prevents nuisance tripping of shore power fuses. Housed in a compact enclosure (200 x 180 x 115 mm) and weighing only 1.2 kg, it is ideal for marine and mobile AC systems requiring reliable surge protection.
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€ 465,63
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1-2 weeks delivery time The Mastervolt Soft Start 13-22kW (55003400) is an advanced automatic inrush current limiter for 230 V AC systems, specifically designed to suppress startup surges from isolation transformers. Supporting power loads from 13,000 to 22,000 W, it prevents circuit breaker tripping during initial power-up. Housed in a compact 200 x 180 x 115 mm enclosure and weighing 1.5 kg, it is ideal for larger yachts or installations with high-capacity transformers requiring safe and reliable grid connection.
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€ 597,75
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1-2 weeks delivery time The Mastervolt Transfer System 120/230V – 6kW (55010600) is an automatic AC power transfer switch designed to seamlessly adapt incoming grid voltages for onboard systems. Rated at 6,000 W, it enables safe operation of 230 V/50 Hz electrical systems on 120 V/60 Hz shore power, such as in North America or the Caribbean. Used in combination with an IVET transformer and optional Soft Start, it suppresses inrush currents and ensures uninterrupted operation of sensitive onboard electronics.
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€ 1.997,16
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1-2 weeks delivery time The Mastervolt Masterswitch 3kW (55106000) is a compact and automatic AC transfer switch that connects two independent 120V power sources—such as shore power and a generator—to a single AC output group. Rated for 25 A per input and supporting up to 3,000 W, it ensures fast and seamless switching within 12–22 ms. Featuring IP55 protection, adjustable generator delay (0–10 sec), and wide operating temperature range, it is ideal for marine and mobile power systems requiring reliable and silent AC source management.
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€ 576,71
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1-2 weeks delivery time The Mastervolt Masterswitch 7kW (55106100) is a heavy-duty automatic AC transfer switch designed to handle dual 120 V power sources—such as shore and generator inputs—routing them to a single onboard AC group. With a nominal input current of 60 A per source and a power handling capacity up to 7,000 W, this switch enables fast, seamless transitions with a transfer time of 12–22 ms. The unit offers IP55 protection, adjustable generator delay, and robust performance for marine and mobile energy systems requiring high current switching.
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€ 936,87
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1-2 weeks delivery time The Mastervolt RJ12 Communication/Sync Cable 1m (6502000010) is a straight 6P6C RJ12 cable designed for synchronization and communication between Mastervolt inverter/charger units. It is required for parallel and 3-phase setups of Mass Sine Ultra, Mass Combi Ultra, and Mass Combi Pro series. Also suitable for connecting the AC Master remote control. Length: 1 meter.
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€ 9,82
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1-2 weeks delivery time The Mastervolt RJ12 Communication/Sync Cable 3m (6502000030) is a straight 6P6C RJ12 cable used for synchronization and communication between Mastervolt inverter/charger devices in parallel or 3-phase configurations. Compatible with Mass Sine Ultra, Mass Combi Ultra, and Mass Combi Pro models. Also suitable for the AC Master remote control where a straight RJ12 connection is required. Total cable length: 3 meters.
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€ 14,52
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1-2 weeks delivery time The Mastervolt RJ12 Modular Cable 6-Wire Crossed 10m (6502100100) is a high-quality communication cable designed for connecting remote control panels to Mastervolt chargers, inverters, and Combis. It also supports synchronization in parallel or 3-phase systems using Mass Sine Ultra, Mass Combi Ultra, or Mass Combi Pro devices. Equipped with factory-terminated RJ12 modular plugs (6P6C), the 10-meter cable ensures reliable signal integrity in demanding installations.
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€ 21,04
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1-2 weeks delivery time The Mastervolt RJ12 Modular Cable 6-Wire Crossed 15m (6502100150) is a premium-quality communication cable designed for both remote panel connection and synchronization of Mastervolt devices in parallel or 3-phase configurations. Equipped with factory-crimped RJ12 (6P6C) crossed plugs, this 15-meter version ensures reliable long-distance communication between Mass Sine Ultra, Mass Combi Ultra, or Mass Combi Pro inverters/chargers, and remote interfaces. Also available in shorter lengths from 1 to 10 meters.
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€ 25,32
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1-2 weeks delivery time The Mastervolt 6801601100 is a 1-meter, high-integrity signal cable with three twisted pairs (3x2x0.25 mm²) and full shielding, ideal for reliable communication between Mastervolt’s BTM (Battery Temperature Monitor), BattMan Lite, and BattMan Pro systems. Designed for minimal interference in demanding marine and off-grid environments, this professional-grade cable ensures stable data transmission over short-to-medium distances in battery monitoring applications.
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€ 8,77
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1-2 weeks delivery time The Mastervolt 6801601300 is a flexible, multi-core communication cable featuring 5 twisted pairs of 0.25 mm² conductors (10 wires total), designed for CSCP (Control & Signal Communication Panel) systems. Sold per meter, it provides reliable low-voltage signal transmission between control panels and Mastervolt components. The cable is ideal for marine, mobile, and industrial environments where robust, shielded communication lines are required for system stability and EMI resistance.
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€ 10,47
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1-2 weeks delivery time The Mastervolt GMDSS Remote Panel (70400050) provides remote status monitoring of Mass battery chargers in GMDSS-compliant systems. Designed for 12/24 V DC applications, it features an LCD display with LED status indicators for DC voltage, charger, and AC mains alarms. Supplied with a 500 A / 50 mV shunt, it measures up to ±500 A current and 0–62.7 V voltage, with high accuracy and relay outputs for alarm signaling. Ideal for SOLAS-regulated vessels requiring GMDSS safety compliance.
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€ 652,16
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1-2 weeks delivery time The Mastervolt AC Master Remote (70405080) is a compact remote control panel for AC Master sine wave inverters, providing manual and automatic on/off functionality. It includes a clear LED indicator showing inverter status and features an auxiliary input (10.5–31 V DC) for integration with onboard automation—such as ignition or AC power activation. Delivered with an 8-meter (25 ft) RJ12 cable for plug-and-play installation.
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€ 69,07
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1-2 weeks delivery time The Mastervolt 70901200 is a robust AC voltmeter designed for precise voltage monitoring in marine and industrial environments. With a measurement range of 0–300V AC and an accuracy of ±1%, it ensures reliable performance across various applications. Its IP65-rated enclosure provides protection against water and dust, making it suitable for harsh conditions. The voltmeter features a high-resolution display for clear readings and supports a frequency range of 45–65 Hz.
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€ 168,86
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1-2 weeks delivery time The Mastervolt 70904610 Cover Box is a protective housing designed specifically for Masterlink remote panels. Crafted from durable grey plastic, it offers an additional layer of protection against dust and mechanical impacts. Measuring 120 x 65 mm with a depth of 40 mm, this cover box ensures a snug fit for standard Masterlink panels, making it ideal for installations where the panel protrudes from the surface.
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€ 8,49
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1-2 weeks delivery time The Mastervolt 70905001 is a 1A red single-pole rocker-style circuit breaker designed for DC systems up to 32V. Engineered to protect circuits from overload and short circuits, it also serves as a manual on/off switch—ideal for low-current applications such as lighting or electronics. Compact and panel-mountable, the unit meets CE, UL, CSA, and ABYC safety standards. Dimensions: 48 x 19 mm (panel cut-out), with a depth of ~40 mm behind the panel.
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€ 30,57
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1-2 weeks delivery time The Mastervolt 70905002 is a 2.5A single-pole circuit breaker with an integrated red rocker switch, engineered for 12/24V DC systems in marine, RV, and industrial applications. Designed to protect low-current circuits against overloads and short circuits, this compact breaker also functions as an on/off switch for equipment like lighting. Certified to CE, UL, CSA, and ABYC standards. Panel cut-out dimensions: 48 x 19 mm; installation depth: approx. 40 mm.
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€ 34,01
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1-2 weeks delivery time The Mastervolt 70905005 is a 5A single-pole rocker circuit breaker built for compact, marine-grade electrical panels. Suitable for 12V/24V DC systems, it protects critical onboard circuits from overload and short circuits, while doubling as a manual on/off switch for directly connected loads such as lighting, pumps, or fans. The unit fits a 48 x 19 mm panel cut-out and complies with CE, UL, CSA, and ABYC standards.
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€ 34,01
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1-2 weeks delivery time The Mastervolt 70905007 is a 7.5A single-pole rocker circuit breaker designed for use in low-voltage DC electrical systems. It protects circuits from overload and short circuits and also acts as a manual switch for connected equipment such as lights or pumps. Ideal for 12/24V installations, it features a red rocker actuator, snap-in panel mounting (48 x 19 mm), and complies with CE, UL, CSA, and ABYC safety standards. Installation depth: ~40 mm.
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€ 30,57
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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.