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Mastervolt

The Mastervolt Mass 24/100 (DNV GL) Acculader is a professional-grade 24 V battery charger engineered for demanding marine and industrial applications. With a total charging current of 100 A at 28.5 V, this unit supports battery banks from 200 to 1000 Ah, making it suitable for vessels and equipment requiring reliable power in challenging environments. Certified by DNV GL, CE, ABYC A-31, RRR, and RMRS, the charger features robust construction with a lightweight, corrosion-resistant anodized aluminum housing and internal component coatings that protect against moisture and condensation. The design withstands severe vibrations and shock movements, ensuring durability in harsh conditions. Operating within an environmental temperature range of -25 °C to 80 °C, it delivers full power up to 40 °C with vario fan cooling. The charger employs an automatic three-stage IUoUo charging characteristic compatible with Gel, AGM, wet, and lithium-ion batteries, including communication via the integrated MasterBus for lithium-ion models. It includes a temperature sensor, DC voltage compensation, and current control function to prevent fuse tripping during voltage drops. With dimensions of 420 x 318 x 130 mm (16.5 x 12.5 x 5.1 inch) and a weight of 7.7 kg, it offers galvanic isolation, stable ripple-free power even without a battery, and parallel connection capability for multiple chargers. GMDSS compatible versions are available for SOLAS compliance, and it features an LED display, IP23 protection rating, and safeguards against overheating, overload, short circuit, and high/low battery voltage. The unit operates on 230 V AC input (180-265 V, 50/60 Hz) with a power consumption of 3500 W at full load and a power factor greater than 0.95, backed by a mean time between failures of 180,000 hours under continuous full-power use.

Actual product image Mastervolt Mass 24/100 (DNV-GL, Lloyds) (100 A, 24V)

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Mass 24/100 (DNV-GL, Lloyds)

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