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Mastervolt
Mass 48/25

Mass 48/25

Product catalog summary

Overview
The Mass 48/25 battery charger is designed for demanding conditions, suitable for professional, semi-professional, and recreational use. It operates reliably under extreme conditions with a Mean Time Between Failures (MTBF) of 180,000 hours at full capacity.

Key Features

Lightweight, stainless steel, anodised aluminium casing.
Internal components are coated to prevent damage from damp or condensation.
Insensitive to electromagnetic effects from other devices.
Compatible with all battery types, including flat batteries.
Includes a temperature sensor as standard.
Operates at full power up to 45°C.
Load capacities range from 80 to 1000 Ah or more.
Stable and ripple-free power supply, even without batteries.
Current Control function prevents fuse breakdown during voltage drops.
Parallel switching possible with multiple chargers.
Complies with CE, ABYC A-31, and IEC60945 standards.
GMDSS models and panels available, certified by RRR and RMRS.

GMDSS Compatibility
The Mass series is GMDSS compatible, allowing compliance with SOLAS regulations and monitoring of various alarm functions. A separate GMDSS remote panel is available.

Charging Lithium Ion Batteries
Mastervolt chargers communicate directly with Lithium Ion batteries via MasterBus, ensuring clarity in the charging process.

MasterBus Compatibility
Mass chargers can connect to a MasterBus network with one cable, allowing for central, local, or remote monitoring and control.

Durability
Designed to withstand heavy vibrations and shocks, the Mass chargers use premium quality components and robust mounting.

Specifications

Nominal output voltage: 48 V
Total charge current: 25 A at 57 V
Battery bank size: 100-500 Ah
Nominal input voltage: 230 V (180-265 V), 50/60 Hz
Dimensions: 340 x 261 x 130 mm (13.4 x 10.3 x 5.1 inch)
Weight: 4.6 kg (10.1 lb)
Compliance: CE, ABYC A-31, RRR, RMRS

Technical Specifications

Charge characteristic: IUoUo, automatic 3-step+ for gel/AGM/wet/Lithium Ion
Charge voltage Bulk: 57 V
Charge voltage Absorption: 57 V
Absorption time: 4 hours
Charge voltage Float (wet batteries): 53 V
Charge voltage Float (Gel/AGM batteries): 55.2 V
Temperature sensor: Yes (included)
DC voltage compensation: Yes
Power consumption (DC side): < 1 mA
Full load consumption (230 V AC): 1800 W
Power factor control: > 0.95
Temperature range: -25 °C to 80 °C, derating > 40 °C (-13 to 176 °F)
Cooling: Vario fan
Protection degree: IP23
Protections: Over temperature, overload, short circuit, high/low battery voltage
MasterBus compatible: Yes
Charger Status Interface (alarm contact): Yes

Catalog excerpts

The right choice for demanding conditions Mass battery chargers are designed for the toughest conditions for professional, semi-professional and recreational purposes. Even under the most extreme conditions the products from the Mass series operate faultlessly, giving you round-the-clock output when necessary. The sustainability and technologies that underpin the Mass concept have long been proven in practice. With an MTBF of 180,000 hours at full capacity and 24/7 use, the Mass products are ideal for the toughest tasks and any situation that requires a reliable power supply. Powerful selling...

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GMDSS Compatible The Mass series are designed for the most demanding situations. To help you comply with SOLAS regulation, all Mass battery chargers are GMDSS compatible. GMDSS stands for Global Maritime Distress and Safety System, and allows users to monitor various alarm functions. A separate GMDSS remote panelGMDSS remote panel is available, which is compatible with all Mass battery chargers. Charging Lithium Ion batteries Although Lithium Ion batteries are increasingly popular, there can be a lack of clarity when it comes to the charging process. This is not a problem with Mastervolt as the...

Open the catalog to page 3

Specifications General specifications Nominal output voltage Total charge current Number of battery outlets Battery bank size Nominal input voltage Power supply mode Galvanic isolation Dimensions, hxwxd Technical specifications Charge characteristic IUoUo, automatic 3-step+ for gel/AGM/wet/Lithium Ion Charge voltage Bulk Charge voltage Absorption Absorption time Charge voltage Float (wet batteries) Charge voltage Float (Gel/AGM batteries) Temperature sensor Power consumption (DC side) Full load consumption (230 V AC) Current Control function Power factor control Temperature range (ambient temp.)...

Open the catalog to page 4

Mass 48/25

Mass 48/25

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