SKU: 19830130419

Victron Quattro-II - 12/3000 - 120-50/50 - 2X 120V

Sale price$619.65 Regular price$688.50
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Description

Victron Quattro-II - 12/3000 - 120-50/50 - 2X 120VQuattro II 12 3000 120 50 50 2X 120V Similar to the MultiPlus II 2x120V, the Quattro II 2x120V is a combined inverter and charger specifically designed for standard North American 50A 120 240VAC split phase applications. Additionally, it can accept two AC inputs and automatically connect to the active source. 120 240V Input and Output, or 120V Input and Output (Always 120V Output When in Inverter Mode) The two AC inputs can be supplied from a split

Quattro-II - 12/3000 - 120-50/50 - 2X 120V

Similar to the MultiPlus-II 2x120V, the Quattro-II 2x120V is a combined inverter and charger specifically designed for standard North American 50A 120/240VAC split-phase applications. Additionally, it can accept two AC inputs and automatically connect to the active source.

120/240V Input and Output, or 120V Input and Output (Always 120V Output When in Inverter Mode)

The two AC inputs can be supplied from a split-phase 120/240V source or a single-phase 120V source. When one of the AC sources is available, the Quattro will feed through the AC to its output. The output will therefore mirror the AC input.

The inverter/charger connects to the neutral and the preferred input line (L1). The power needed to charge the batteries will therefore be drawn from L1.

The Quattro switches to inverter operation when no AC source is available. The inverter output is 120V single-phase. In invert mode, the Quattro connects both output lines (L1 and L2) together to provide 120VAC to loads on either line.

Any 240V loads will therefore be supplied only when the Quattro is supplied by a split-phase AC source. This prevents heavy loads such as water heaters or 240V air conditioners from discharging the battery.

PowerControl and PowerAssist - Boosting the Capacity of the Grid or a Generator

A maximum grid or generator current can be set. The Quattro will then take account of other AC loads and use whatever is extra for battery charging, thus preventing the generator or grid from being overloaded (PowerControl function).

PowerAssist takes the principle of PowerControl to a further dimension. Where peak power is often required only for a limited period, the Quattro will compensate for insufficient generator, shore, or grid power with power from the battery. When the load reduces, the spare power is used to recharge the battery (available on L1 input only).

Two AC Inputs and Two AC Outputs

The Quattro can be connected to two independent AC sources, for example,shore-side power and a generator, or two generators. The Quattro-II will automatically connect to the active source.

The main output has no-break functionality. The Quattro takes over the supply to the connected 120V loads in the event of a grid failure or when shore/generator power is disconnected. The transfer time of the L1 output is less than 18 milliseconds, so computers and other electronic equipment will continue to operate without disruption. The transfer time of the L2 output is longer: approximately 40 milliseconds.

The second (auxiliary) output is live only when AC is available on the input of the Quattro. Loads that should not discharge the battery can be connected to this output.

Virtually Unlimited Power Thanks to Parallel and Three-Phase Operation

Up to 6 Quattros can operate in parallel to achieve a higher power output. In addition to parallel connections, three units of the same model can be configured for three-phase output. In multi-phase setups, L2 is disabled on all units.

On-Site System Configuring, Monitoring and Control

Settings can be changed in a matter of minutes with the VictronConnect app or VEConfigure software (computer or laptop and MK3-USB interface are needed). Several monitoring and control options are available: Cerbo GX, Color Control GX, laptop, computer, Bluetooth (with the optional VE.Bus Smart dongle), Battery Monitor, and Digital Multi Control Panel.

Remote Configuration and Monitoring

Install a Cerbo GX or other GX product to connect to the internet. Operational data can be stored and displayed on our VRM (Victron Remote Management) website free of charge. When connected to the internet, systems can be accessed remotely, and settings can be changed.

Specifications:

  • PowerControl & PowerAssist: Yes (on L1 input)
  • Transfer Switch: 50 A
  • Maximum AC Input Current: 50A (each leg)

Inverter Specifications:

  • DC Input Voltage Range: 9.5-17V
  • Output When in Inverter Mode: Output voltage: 120 Vac ± 2% / Frequency: 60 Hz ± 0.1% (1)
  • Cont. Output Power at 25°C: 3000 VA
  • Cont. Output Power at 25°C: 2400 W
  • Cont. Output Power at 40°C: 2200 W
  • Cont. Output Power at 65°C: 1700 W
  • Maximum Apparent Feed-in Power: 2500 VA
  • Peak Power: 5500 W
  • Maximum Efficiency: 93%
  • Zero Load Power: 15W
  • Zero Load Power in AES Mode: 10W
  • Zero Load Power in Search Mode: 4W

Charger Specifications:

  • AC Input: Split-phase: 180-280Vac 45 – 65Hz / Single-phase: 90-140Vac 45 – 65Hz
  • Charge Voltage 'Absorption': 14.4V
  • Charge Voltage 'Float': 13.8V
  • Storage Mode: 13.2V
  • Maximum Battery Charge Current: 120A
  • Battery Temperature Sensor: Yes

General Specifications:

  • Auxiliary Output: 50 A (each leg)
  • External AC current Sensor (optional): 100A
  • Programmable Relay: Yes
  • Protection: a – g
  • VE.Bus Communication Port: For parallel and three-phase operation, remote monitoring and system integration
  • General Purpose com. Port: Yes, 2x
  • Remote On-Off: Yes
  • Operating Temperature Range: -40 to +65°C (-40 -150°F) Fan assisted cooling
  • Humidity (non-condensing): Max 95%

Enclosure Specifications:

  • Material & Color: Steel, blue RAL 5012
  • Protection Category: IP22
  • Battery-Connection: 2x2 M8 bolts
  • 120/240 V AC-Connection: Screw terminals 21 mm² (4 AWG)
  • Weight: 32.8 kg / (52 lb)
  • Dimensions (hxwxd): 579 x 319 x 168 mm / (23 x 13 x 7 inch)

Standards:

  • Safety: EN-IEC 60335-1, EN-IEC 60335-2-29
  • Emission, Immunity: EN 55014-1, EN 55014-2, EN-IEC 61000-3-2, EN-IEC 61000-3-3, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3
  • Can be adjusted to 50 Hz
  • Protection key: Output short circuit, overload, battery voltage too high, battery voltage too low, temperature too high, 120Vac on inverter output, input voltage ripple too high
  • Non-linear load, crest factor 3:1.
  • Up to 75-degrees F / 25-degrees C ambient temperature
  • Switches off when no external AC source is available.
  • Programmable Relay That Can for Example Be Set for General Alarm or DC under Voltage or Genset Start/Stop Function: AC rating: 120Vac / 4A / DC rating: 4A up to 35dc, 1A up to 60Vdc
  • Use, for example, to communicate with a lithium battery BMS
Please contact your dealer for any returns, repairs or support issues related to this product.
Manufacturer : Victron Energy
Manufacturer Part No : QUA122305130
UPC : 8719076057369
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: 19830130419

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Janola
Fort Morgan, US
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
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Reviewed in the United States on July 28, 2025
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Reviewer
Draper, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026
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Brittany
Cuba, US
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
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Reviewed in the United States on April 8, 2026
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Janessa L.
Massapequa, US
★★★★★ 5
I want to live in these
Color: 01-multicolour (4-pack), Size: Medium
I bought 4 different sets of new underwear. Unfortunately these came last. It’s unfortunate, because if they had come first I would have cancelled all my other orders or returned them and ordered more of these. I never want to wear anything else ever again; these are the comfiest undies I’ve ever owned, I want to live in them. I can wear them under pretty much anything except leggings or very tight pants (but let’s be honest, I don’t wear those anyway.) They are incredibly soft and breathable, they wash well, don’t roll, keep my thighs from rubbing, are comfy to sleep in, and the colors were true to the photo. Just a heads up, they are on the thin side and just a bit see through in the rear. I’m 5’5” 140lbs and the mediums fit perfectly, they go about mid-thigh.
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Reviewed in the United States on July 30, 2025
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Verified Purchase
Pistol King
Waukegan, US
★★★★★ 5
Extremely comfortable
Color: 02-multicolour (4-pack), Size: X-Large
These are by far the softest and most comfortable underwear I have ever owned. The leg portion absolutely does roll up as so many others have mentioned, however, I did not find that to be uncomfortable at all just annoying that they don’t stay in place. I bought these specific underwear to see if it would help alleviate HS symptoms at all. They have definitely helped with wicking moisture away from the skin. More time will tell if it’s truly helpful for HS. For now, I will recommend these. They are thin, breathable, butter soft, wick moisture comfortable and I would buy again…maybe in a different style next time. I have washed them several times and they seem to be holding up rather well so that is also of supreme importance given the cost of the item. Again, I would recommend this item and plan on purchasing more in a different style very soon.
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Reviewed in the United States on September 13, 2025

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