Mastervolt
Mastervolt Mass Battery Charger with 230V Input (24V / 50A)
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Mastervolt Mass 24/50-2 is a 24V, 50A battery charger built for the toughest professional, semi-professional and recreational conditions. Its lightweight stainless steel and anodised aluminium casing, together with a protective coating on the internal components, resists damp and condensation to give a long service life in demanding marine environments. The charger is insensitive to electromagnetic interference from surrounding equipment and supplies stable, ripple free power that stays reliable even with no batteries connected.
Suitable for every battery type, it charges flat batteries and applies an automatic IUoUo 3-step+ characteristic optimised for Gel, AGM, wet and Lithium Ion banks. A temperature sensor is supplied as standard and the unit delivers full power at ambient temperatures up to 40 degrees C. A second 3A output keeps a starter or auxiliary battery charged. The Mass 24/50-2 is DNV GL certified and a GMDSS version is available.
Full MasterBus compatibility lets the charger join a wider Mastervolt network over a single cable for central, local or remote monitoring and control. Multiple units can be switched in parallel, and the Current Control function prevents fuses from blowing when the input voltage falls.
PRODUCT DETAILS
- Nominal output 24V with a total charge current of 50A at 28.5V
- Second battery output rated at 3A for a starter or auxiliary bank
- Suitable for every battery type and charges flat batteries
- Automatic IUoUo 3-step+ charging for Gel, AGM, wet and Lithium Ion
- Delivered as standard with a temperature sensor
- Lightweight stainless steel and anodised aluminium casing
- DNV GL certified with a GMDSS version available
- MasterBus compatible for central, local or remote monitoring
- Parallel switching possible using multiple chargers
- Battery charger
- Temperature sensor
No exploded diagram available for this product.
No compatible transducers listed for this product.

Mastervolt Battery Temperature Sensor (15m Cable)

Mastervolt MasterBus cable 0.2 metre

Mastervolt MasterBus cable 0.5 metre

Mastervolt MasterBus cable 1 metre

Mastervolt MasterBus cable 3 metre

Mastervolt MasterBus cable 6 metre

Mastervolt MasterBus cable 10 metre

Mastervolt MasterBus terminator

Mastervolt MasterBus USB Interface

Mastervolt MasterBus Modbus Interface

Mastervolt MasterBus NMEA2000 interface

Mastervolt MasterBus Serial Interface

Mastervolt MasterBus Multi Purpose Contact Output
General specifications
| Nominal output voltage | 24 V |
| Total charge current | 50 A at 28.5 V |
| Number of battery outlets | 2 |
| Charge current second output | 3 A |
| Battery bank size | 100-500 Ah |
| Nominal input voltage | 230 V (180-265 V), 50/60 Hz |
| Power supply mode | yes |
| Galvanic isolation | yes |
| Display/read-out | LED display |
| Dimensions, hxwxd | 340 x 261 x 130 mm |
| Weight | 4.6 kg |
| Compliance | CE, ABYC A-31, DNV GL, RRR, RMRS |
Technical specifications
| Charge characteristic | IUoUo, automatic 3-step+ for Gel/AGM/wet/Lithium Ion |
| Charge voltage Bulk | 28.5 V |
| Charge voltage Absorption | 28.5 V |
| Absorption time | 4 hours |
| Charge voltage Float (wet batteries) | 26.5 V |
| Charge voltage Float (Gel/AGM batteries) | 27.6 V |
| Temperature sensor | yes (included) |
| DC voltage compensation | yes |
| Power consumption (DC side) | < 1 mA |
| Full load consumption (230 V AC) | 1600 W |
| Current Control function | yes, through MasterBus |
| Power factor control | > 0.95 |
| Temperature range (ambient temp.) | -25 °C to 80 °C, derating > 45 |
| Cooling | vario fan |
| Protection degree | IP23 |
| Protections | over temperature, over load, short circuit, high/low battery voltage |
| MasterBus compatible | yes |
| Charger Status Interface (alarm contact) | yes |
No videos available for this product.
- Material Declaration - Green Passport
- UK DoC Mass Chargers DNV
- EU DoC Mass Chargers DNV
- DNV-GL Type approval certificate Mass charger models 24/50-2, 24/75, 24/100, 24/75-120V
- RRR Certification
- RMRS Approval, Mastervolt Mass Chargers, Sep 2024
- User Manual Mass Charger (firmware version 7.7.0 or higher)
- Mass Charger CZone Configuration Instructions





