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Description
Mastervolt Combimaster 24/3000 Inverter/charger 24v Input 120v 3000watt OutputMastervol CombiMaster 24 3000 70 (120 V) Model: 35523000 Most compact and lightweight Combi in its class. Reliable, hum free and longer operation from your batteries. Starts even the heaviest and most sensitive loads. Intelligent 3 step+ battery charger for faster and safer charging. Automatic switching between mains and inverter mode. Power Assist prevents blown mains fuses. Generator compatible. Integrated CZone, MasterBus and NMEA 2000
Mastervol CombiMaster 24/3000-70 (120 V)
Model: 35523000- Most compact and lightweight Combi in its class.
- Reliable, hum-free and longer operation from your batteries.
- Starts even the heaviest and most sensitive loads.
- Intelligent 3-step+ battery charger for faster and safer charging.
- Automatic switching between mains and inverter mode.
- Power Assist prevents blown mains fuses.
- Generator compatible.
- Integrated CZone, MasterBus and NMEA 2000 communication.
- Quick installation with heavy duty connections.
- E-mark certified.
Designed with the customer in mind and using the latest technology, the CombiMaster range is all about user-friendliness and reliability. But don’t let that friendly appearance misguide you: the powerful CombiMaster range drives even the heaviest and most sensitive loads with ease!
With the CombiMaster, power dips and failures belong to the past. The automatic AC transfer system switches between generator or mains and inverter output, ensuring a constant power supply. Its Power Assist function prevents tripping of the mains fuse in case you’re connected to a weak land line or small generator.
The CombiMaster range delivers unmatched performance and value for money. As you would expect from Mastervolt, the CombiMaster is completed with MasterBus, CZone and NMEA 2000 compatible communication, allowing for a broad range of monitoring and system integration options.
Specifications| Specifications sine wave inverter | |
| Nominal DC voltage | 24 V (20.4—32 V) |
| Output voltage | 120 V |
| Output frequency | 60/50 Hz (configurable) |
| Output waveform | true sine |
| Continuous power at 40 °C / 104 °F, cos phi 1 | 2600 W |
| Peak power (30 sec) | 4500W |
| Surge power (5 sec) | 6000 W |
| Max. efficiency | 93 % |
| Battery no-load power consumption | 30 W (on mode) / < 1 mA (off mode) |
| Energy saving mode consumption | 10 W |
| Synchronise with mains | yes |
| Specifications battery charger | |
| Input voltage range | 90—140 V |
| Max. input current | 25 A (adjustable) |
| Max. charge current at 40 °C / 104 °F | 70 A at 28.5 V (configurable) |
| Battery temperature sensor | yes, included |
| Battery voltage sense | automatic compensation |
| Specifications transfer system | |
| AC input | 30 A (switched) |
| AC output | 55 A |
| AC input fuse | yes |
| Transfer speed | 10 ms |
| Transfer voltage range | wide: 70—140 V / narrow: 90—140V |
| Transfer frequency range | 40-65 Hz |
| General specifications | |
| Galvanic isolation | yes |
| Display/read-out | LED display |
| Dimensions, hxwxd | 17.6 x 11.2 x 6.1 inch |
| Weight | 20.5 lb |
| Compliance | ABYC A31, UL1236, UL1741, SAEJ1171, FCC class B |
| Technical specifications | |
| Charge characteristic | UoUo, automatic / 3-step+ for flooded, Gel/AGM and MLI, configurable |
| Recommended battery capacity | 180-500 Ah (based on gel batteries, may differ for other types) |
| Ground relay | yes, configurable by means of mechanical jumper |
| Temperature range (ambient temp.) | -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, supports AC input with power from the battery |
| Power Sharing | yes, allows you to select AC Input fuse setting |
| MasterBus compatible | yes |
| CZone / NMEA 2000 compatible | yes |
What's in the Box:
- CombiMaster Inverter/Charger
- Temperature sensor
- MasterBus terminator
- Drop cable Czone/MB (1m)
- Mounting bracket
- User and installation manual
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
It Works
This works fine. Good size. Good enough cord length. Does what a power strip should do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2025
★★★★★ 5
Great for multiple adapters
Color: Black, Size: 8 Outlet, Style: Outlets Only
One of the common flaws of single width strips is the inability to accommodate more than 1 adapter unless you want to waste the sockets as the adapter obstructs/covers
the adjacent sockets.
This one has 2 rows with sockets at 90 degrees. As such, adapters face outward and do not obstruct adjacent sockets. Well made and sturdy, typical of APC quality.
Hopefully the surge protection won't be tested but gives you peace of mind to know that all plugged in devices are protected. I have it mounted under my office desk using the mounting holes at the back.
Great value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2022
★★★★★ 5
A household staple
Style: Data/Line Protection - 12 ft
I use this power strip for both my computer and entertainment setup, and it has been very reliable. The seven outlets give me enough room for everything without having to use multiple strips. The cord is long enough to reach the wall easily while keeping things neat. It sits flat on the floor and does not tip over when everything is plugged in. The layout of the outlets makes it easy to plug in larger adapters without blocking others. It has already gotten a lot of use and should give me plenty more for years to come.
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Reviewed in the United States on August 13, 2025
★★★★★ 5
Perfect!
Style: Data/Line Protection - 6 ft
I somehow didn't notice it had phone jacks on the end of it before I ordered, but this was the only/cheapest option I could find that had a flat plug, and a 6 foot cord, and was a surge protector, AND had indicator lights for protection at least (this additonally has a light for ungrounded).
I feel like, what's the point in having a surge protector if it can't tell you whether it's protecting you or not?
I needed the flat plug to fit behind a door that remains open fully and has my outlet behind it as a result. Perfect.
I don't and probably will never have a use for the phone jacks. It came with a sticker over them which I will just leave for now. But this fit the bill of all other criteria. I guess the 5th criteria was a "known brand" - I didn't want some cheap "travel surge protector" by an unknown company. Belkin, Tripp Lite, APC...don't risk your expensive electronics. I also got a few of the Amazon Basics ones to put around the house and replace the power taps we were using. But they don't have flat plugs.
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Reviewed in the United States on July 22, 2017
★★★★★ 5
Quality Product
Style: Data/Line Protection - 12 ft
*** Seller: I bought the Belkin 7-Outlet Home/Office Surge Protector with 12 feet Cord from Amazon.com LLC.
*** Shipping and handling: Amazon.com LLC did a wonderful job in packaging this product. It arrived in excellent condition.
*** Usage time: I received this product on February 4, 2015, and from the date of this review, I have been using it for 31 days. I'll update my review periodically.
*** Performance review:
- Negatives.
None.
- Neutral.
(1) The angled plug is convenient for tight spaces. Some people have complained about its right-oriented design, but that doesn't vex me. I simply place the surge protector somewhere to the right of my workstation.
(2) I haven't experienced a surge yet (and I hope I never will), so I can't comment on the device's ability to protect my devices.
- Positives.
(1) Still working after 31 days of continued use (with all seven outlets occupied [laptop, scanner, printer, and so on]).
(2) Based on the device's appearance, it looks both sturdy and professional. A reset switch is located on the side. Indicators on top show whether your devices are either protected (green) or not grounded.
*** Summary: I thoroughly enjoy this device and would recommend it to anyone seeking a quality product. If this device were to break down, I wouldn't hesitate to order it again from Amazon.com LLC.
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Reviewed in the United States on March 9, 2015
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