Mastervolt Mass 24/50 3PH battery charger

The Mastervolt Mass 24/50 3PH charger (reference 40030506) delivers a nominal voltage of 24 VDC with a total charge current of 50 A.

This charger is compatible with a three-phase input voltage range of 3 x 365 to 550 V AC, at a frequency of 50-60 Hz.

The Mass 24/50 3PH charger’s design features a lightweight stainless steel and anodized aluminum housing, making it suitable for demanding environments.

Yes, the internal components of the charger are coated for protection against moisture and condensation, contributing to extended service life.

The operating temperature range of the Mastervolt Mass 24/50 3PH charger is 0 to 60 °C. It maintains full output power up to an ambient temperature of 40 °C, with power derating beyond this value to manage internal temperature.

The Mastervolt Mass 24/50 3PH charger weighs 10 kg.

The Mastervolt Mass charger should be installed in a well-ventilated space, protected from rain, snow, splashes, steam, bilge water, humidity, and dust.

We recommend as a minimum toolkit:

A 13 mm socket wrench to secure DC input cables (battery).A Philips screwdriver to open the charger's connection area.A 2 mm flathead screwdriver for the detection terminal.

To connect the Mastervolt Mass 24/50 3PH charger:

For cable lengths under 3 meters, a 25 mm² cable is recommended.For cable lengths between 3 and 6 meters, a 35 mm² cable is recommended.These cables must be connected to the positive and negative poles of the DC distribution.

The charger is supplied with a battery temperature sensor, cable, and plug. DC cables, DC fuse holder, AC cable, and mounting screws/bolts are not included and must be provided by the installer.

A voltage drop of 0.6 V caused by a battery isolator can be compensated in two ways:

By setting DIP switch 4 to 'On' (Diode enabled). The compensation value is then adjustable between 0 and 2.50 V.

Yes, the Mastervolt Mass 24/50 3PH charger has a specific setting for lithium-ion batteries, which can be enabled by setting DIP switch 5 to 'On'.

Yes, the charger is compatible with various battery types. It provides default settings for charge voltages (Bulk, Absorption, Float) at 25°C. The charge specifications are based on Mastervolt batteries, but adjustments can be made via the DIP switches for other battery chemistries, for example to increase float voltage for certain Gel/AGM batteries by setting DIP switch 3 to 'On'.

Yes, the Mastervolt Mass 24/50 3PH charger is compatible with the MasterBus system, allowing monitoring and control. It has a MasterBus power capacity.

Yes, there is a specific setting for bulk charge, which can be enabled via DIP switch 2. This setting adds +0.7/1.4V during the Bulk phase and +0.4/0.8V during absorption for 24V batteries.

Yes, the charger complies with the following standards and certifications: CE, ABYC A-31, DNV GL, RRR, RMRS.

Mastervolt cannot accept any liability for indirect damages resulting from the use of the Mass charger.

Yes, the charger is equipped with a dry-contact alarm relay (potential-free) to control external equipment. The alarm function has two modes: standard (factory setting) and DC alarm mode (continuous mode). The maximum switching current of the relay is 1A.

The 'Force Float' function, enabled via DIP switch 1, provides a single-stage charging program with a fixed float voltage. For a 24V charger, the charging voltage will be set to 26.5V.

The 'Contmon' (Continuous Monitor mode) function keeps MasterBus systems, RS232, and the DC alarm operational in the event of a mains power failure. The remote control also remains functional if it has its own power source.