SKU: 63439908534

Mastervolt Mass Combi Ultra 24V/3500W - 100A - 230V

Sale price$3788.54 Regular price$4209.49
Save 10%

Pay in installments of $1052.37 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 27 - Sep 1

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Mastervolt Mass Combi Ultra 24V/3500W - 100A - 230VMass Combi Ultra 24V 3500W 100A 230V The Mass Combi Ultra series comprises several models, varying from 3000 W to 3500 W. For higher capacities up to 35 kW the Combi Ultra can be used in parallel or 3 phase configurations. An efficient and integrated solar charge regulator helps make the most of your solar panels. The Mass Combi Ultra is equipped with the latest technologies. The new inverter technology ensures a uniquely low stand by use, while an

Mass Combi Ultra 24V/3500W - 100A - 230V

The Mass Combi Ultra series comprises several models, varying from 3000 W to 3500 W. For higher capacities up to 35 kW the Combi Ultra can be used in parallel or 3-phase configurations. An efficient and integrated solar charge regulator helps make the most of your solar panels.

The Mass Combi Ultra is equipped with the latest technologies. The new inverter technology ensures a uniquely low stand-by use, while an ultra-fast Digital Signal Processor guarantees seamless switching between all available energy sources. Power Assist prevents power dips and failures, even with a weak electricity connection or small generator. Moreover, all Mass Combi Ultra models are equipped with MasterBus.

Higher yield from solar energy 

At Mastervolt we used our knowledge gained in the grid connected solar sector to make a super-efficient built-in MPPT solar charge regulator. Compared to most solar charge regulators on the market, the MPPT offers up to 30 % more yield from solar panels. The solar panels power ‘hidden’ consumers and keep your batteries in optimal condition.

‘Pro’ Models

For professional applications. Mastervolt offers a ‘Pro’ model, featuring all Ultra functions, but without the solar input and secondary battery charger.

Quiet operation

The Mass Combi Ultra and Mass Combi Pro can provide up to 50 % of the charging current or inverter capacity without fan cooling. This is perfect for night-time operation; if little power is consumed, the fan stops turning and goes silent. When maximum capacity is required, or the ambient temperature is very high, the Active Optima Cooling concept regulates the fan speed in a linear way, ensuring that it never spins too fast or makes any unnecessary ticking noises.

Parallel and 3-phase operation

The Mass Combi Ultra functionality goes beyond stand-alone operation, the design also allows parallel and 3-phase configurations for larger applications up to 35 kW. For larger systems, an external transfer system is required.

Dual AC inputs and outputs

The Mass Combi Ultra and Mass Combi Pro have inputs for generator or mains supply, each optimized for the power source. A robust intelligent transfer system switches seamlessly between AC power, generator and inverter, and ensures a constant power supply. Flickering lights or failure of electronic equipment belong to the past. Separate AC outputs provide the ability to power heavy users via mains and/or generator.

Features

  • For professional and semi-professional use
  • Quiet, powerful inverter with 200 % peak power
  • Compact, lightweight and hum-free thanks to HF technology
  • Pure sine wave voltage prevents malfunctions and damage to sensitive equipment such as adapters
  • High yield and more power from your batteries
  • Intelligent 3-step+ battery charger with low DC ripple current for fast charging times and long battery life
  • Power Assist: prevents blown fuses
  • A dynamic battery voltage window allows you to enjoy AC power for longer without damaging your batteries
  • Active Optima Cooling concept prevents unnecessary fan noise
  • Charges two individual battery banks simultaneously
  • An integrated MPPT solar charge controller allows for 30 % more yield from solar power for charging the batteries
  • Quick installation and reliable professional connections
  • CE, ABYC and RMRS certified

Specifications:

Sine Wave Inverter

  • Nominal DC voltage:24 V (19-32 V)
  • Output voltage: 180-260 V, adjustable
  • Output frequency: 50/60 Hz (± 0.005 %), configurable
  • Output waveform: true sine
  • Continuous power at 40 °C / 104 °F, cos phi 1: 3500 W
  • Max. peak load: 7000W
  • Max. efficiency: ≥ 92 %
  • Max. ripple on DC (battery at full load): < 5 %
  • No-load power consumption on DC (ON/inverter OFF/OFF): 16 W / 4 W / 0 W
  • Energy saving mode consumption: 7 W
  • Parallel configuration: yes, up to 10 units (for larger systems, an external transfer system is required)
  • 3-Phase configuration: yes, up to 3x3
  • Synchronize with mains/generator: yes

Battery Charger

  • Input voltage range: 184–275 V
  • Max. input current: 16 A
  • Max. charge current at 40 °C / 104 °F: 100 A at 28.5 V, adjustable
  • Secondary charger output voltage: 12/24 V selectable
  • Secondary charger output current: 10 A
  • Battery temperature sensor: yes, included
  • Battery voltage sense: through MasterShunt, otherwise automatic compensation

Transfer System

  • AC input (generator): 50 A (switched)
  • AC input (mains): 30 A (switched)
  • AC output 1: 67 A
  • AC output 2: 50 A (switched)
  • AC input fuse: no
  • Transfer speed: seamless (< 1 ms)
  • Transfer voltage range: 184-275 V, adjustable
  • Transfer frequency range: 35-68 Hz, adjustable
  • Solar Input (DC)
  • Input voltage range: 25-100 V
  • Max. PV peak power: 500 Wp
  • Max. input current: 19 A
  • Max. charge current: 15 A at 28.5 V
  • MPP Tracker: full power at 35-80 V

General

  • Display/read-out: LED display
  • Dimensions, hxwxd: 472 x 318 x 178 mm / 18.6 x 12.5 x 7.0 inch
  • Weight: 15.3 kg / 33.7 lb
  • Approvals: CE, ABYC, RMRS

Technical specifications

  • Charge characteristic: IUoUo, automatic 3-traps+ voor AGM/Gel/MLI/nat/tractie/spiraal
  • Recommended battery capacity: 200-600 Ah (based on gel batteries, may differ for other types)
  • Ground relay: yes, configurable
  • Temperature range (ambient temp.): -25 °C to 60 °C, derating > 40 °C / -13 °F to 140 °F
  • Cooling: vario fan
  • Protection degree: IP23 (vertical mounting)
  • Safety class: IEC protection class I
  • Humidity protection: conformal coating, max. 95 % relative humidity, non condensing
  • Protections: over temperature, overload, short circuit, high/low battery voltage
  • Power Assist: yes
  • MasterBus compatible: yes

WARNING: 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.

Specifications:

  • Charger Output - Amps: 100a
  • Charger Output Voltage: 12/24v
  • Inverter Cont. Output Wattage: 3500w
  • Inverter Output Voltage: 230v
  • Inverter Input Voltage: 24v
  • Charger Input - Voltage: 230v
  • Outlet Qty: Hardwire
  • Charging Banks: 2
  • Box Dimensions: 9"H x 16"W x 23"L WT: 40.4 lbs
  • UPC: 816882020421

Owner's Manual (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 63439908534

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 16 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Miriam Avila Sanchez
Bozeman, US
★★★★★ 5
Needed for Sunday School
Color: Grey, Size: Wheel-6 Panel
This was purchase to divide two Sunday school children classes. It works wonderful, big enough, sturdy and with wheels, so is easy to move. Thanks God we can find everything in amazon.com. Delivery was fast and perfect. Thank you .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2024
M
Verified Purchase
Melissa P
Houston, US
★★★★★ 3
Not as tall as anticipated
Color: Black, Size: Wheel-6 Panel
Definitely not 6 feet tall, more like 5 1/2. Very sturdy and the fabric is thick. Works well for what we're using it for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
V
Verified Purchase
Vickie Dovel
Chelsea, US
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025
L
Lorraine
Port Orchard, US
★★★★★ 4
Smooth, Stable, and Perfect for Flexible Spaces
Size: 88''W-4 Panel, Color: Grey, Size: 88''W-4 Panel, Color: Grey
This room divider is incredibly easy to move thanks to its industrial-grade silent casters. It glides smoothly across different floor types with just one hand and without any noise, while the built-in wheel locks keep it firmly in place once positioned, no slipping or unwanted movement. The base with reinforced steel feet adds impressive stability, preventing wobbling even in busy or high-traffic areas. I also love the foldable design, which makes storage effortless when it’s not in use. It folds down compactly and fits neatly into small spaces. I gave only 4 stars because I'm not crazy about the color of the fabric. Otherwise this is a very functional way to separate areas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
K
K
Draper, US
★★★★★ 5
easy to put together, stable and blocks out unwanted eyes.
Size: 88''W-4 Panel, Color: Grey
If you live in a high rise building, or where there is lots of foot traffic and can see in your windows, this is a must have. It's portable, can fold down one or two walls and easy to move around. Put together once, and block out light and eyes while tall enough to see over. You can fold it up along the wall, and use it to block out the blinds or light when using a projector so that it's darker. You can use it to partician the room if you share one, and separate your pile of junk from your room so you don't look at it, can take quite a bit of towel weight and clothes and doesn't tip over. Sturdy bottom metal and easy to put together. I got the grey one, and glad I did. I use it everyday and is part of my room decor. I love it, and after using it for a few months it's quite durable. The quality is there for sure. A tad pricey, but worth it. Must have for a private person.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026

recommand products