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Mastervolt Mass 24/50-2 [40020506]

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Manufacturer Warranty Included
SKU OGL-71225
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Original price $3,403.99
Original price $3,403.99 - Original price $3,403.99
Original price $3,403.99
Current price $1,900.99
$1,900.99 - $1,900.99
Current price $1,900.99
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Price Match Policy

Price Match

Here at OffGrid Living, we want to offer you the best prices online.

If you happen to find a lower price for the same product, we will guarantee to match their price or beat their price. Note, this does not apply to all products in the store. Please reach out to us via email or chat if you want a price match or price beat.

For the policy to apply, please send us a screenshot, link, or any other evidence of the product being priced lower than ours before making the purchase.

Refer to our Price Match Policy Rules.

Refunds & Returns Policy

At OffGrid Living, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.

If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.

Refer to our Refunds & Return Policy for more details.

Shipping & Delivery

Order Processing

Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.

Please allow 1-3 days for processing your order.

Shipping

We ship to the lower 48 continental United States only at this time.

Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@offgridlivingsolutions.com.

We will send tracking information by email the same day the shipping tracking number is created/available.

Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and OffGrid Living. Once you accept your shipment as non-damage, your item is your property.

Delivery time

Shipping Timeline listed above is an estimate. Please call or message the web chat for precise ETAs.

Mastervolt Mass 24/50-2 [40020506]

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 points:

  • Designed for the most difficult conditions
  • Lightweight, stainless steel, anodized aluminium casing
  • Coating of internal components prevents damage from damp or condensation to ensure a longer lifespan
  • Insensitive to electromagnetic effects from other devices
  • Suitable for every type of battery, also charges entirely empty batteries
  • Delivered as standard with temperature sensor
  • Full power at temperatures of up to 45 ˚C
  • Load capacities from 80 to 1000 Ah or more
  • Stable and ripple free 24 and 48 V power supply, even without batteries
  • The Current Control function prevents the breakdown of fuses when the voltage drops
  • Parallel switching possible using multiple battery chargers
  • Connections in accordance with CE, ABYC A-31 and IEC60945
  • Certified by RRR, RMRS (does not apply to 24/75 120 V)
  • Certified by DNV GL (only 24/25, 24/50, 24/75, 24/75 (120 V, 24/100 models)
  • Certified by Lloyd (only 24/75, 24/100 models)

For professional use: GMDSS

Professional users will benefit from a front display with GMDSS alarm functions GMDSS stands for Global Maritime Distress and Safety System, an internationally agreed-upon set of safety procedures, types of equipment, and communication protocols that is a requirement for the SOLAS (Safety Of Life At Sea) convention and uses DSC and satellite communication.

This front display is only available for Mass 24/25-2 DNV, Mass 24/50-2, Mass 24/75, Mass 24/75 (120 V), Mass 24/100 and Mass 24/100-3ph.

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 Mastervolt battery chargers communicate directly with the Lithium Ion battery via the integrated MasterBus (or have been adapted to the required charging voltages).

MasterBus compatible

Mass battery chargers can be easily connected to a MasterBus network with only one cable and one connection. You can also choose central, local or remote monitoring, configuration and control of your system.

Made tough by smart design

The certified Mass battery chargers are very strong, designed to withstand heavy vibrations and shocks. Their premium quality components meet the highest possible specifications, while the smart and extra robust mounting adds to the professional end result.

WarningWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Product Specifications

Mastervolt Mass 24/50-2 [40020506] Product Specifications

Category Specification
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 (H x W x D) 340 x 261 x 130 mm (13.4 x 10.3 x 5.1 in)
Weight 4.6 kg (10.1 lb)
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) -25 °C to 80 °C, derating > 40
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

Product Manual

Owner's Manual (pdf)

Product Warranty 

Mastervolt Product Warranty

Product FAQs

N/A