Inverters
Inverters
Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter
₨ 65,000PKR · price may vary
BrandKnox- Model
- KNOX-20
- Specifications
- 13
- Transfer Time10 ms (For Personal Computers) ; 20 ms (For Home Appliances)
- Battery Voltage24 VDC
- Rated Power3000VA/3000W
- Surge Power6000VA
- Frequency Range50 Hz/60 Hz (Auto sensing)
- View all 13 specifications ↓
Specifications
| Output | |
|---|---|
| Transfer Time | 10 ms (For Personal Computers) ; 20 ms (For Home Appliances) |
| TECHNICAL SPECIFICATION | |
| Battery Voltage | 24 VDC |
| Rated Power | 3000VA/3000W |
| Surge Power | 6000VA |
| General Specification | |
| Frequency Range | 50 Hz/60 Hz (Auto sensing) |
| Maximum PV Array Power | 3500W |
| Operating Temperature | -10°C to 50°C |
| Solar Charger Type | MPPT |
| Type | Off-Grid Solar Inverter |
| Voltage | 230 VAC |
| Waveform | Pure sine wave |
| Weight | 7.2Kg |
| Dimension | 110 x 288 x 390 |
How to read this datasheet
Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter is listed with 13 published specifications from Knox, including transfer time of 10 ms (For Personal Computers) ; 20 ms (For Home Appliances), battery voltage of 24 VDC, rated power of 3000VA/3000W and surge power of 6000VA. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.
For an inverter, the figures that matter most are topology — on-grid, off-grid, hybrid or micro, continuous AC output in kW, which caps the load you can run at once, surge or peak rating, which covers the brief inrush of motors and compressors and maximum PV input and the number of MPPT trackers, which set how many panel strings you can connect. It is the component that decides what a solar system can do: how much power you can draw at once, whether you can export to the grid, whether the system keeps running in a blackout, and how well the panels and battery are managed day to day.
An inverter converts the direct current (DC) produced by solar panels and stored in batteries into the alternating current (AC) that household appliances, pumps and the utility grid actually use.
Choosing an inverter: the checks that matter
The checks below apply to any inverter. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.
- Look at the warranty term and what it covers. Five years is the common baseline, ten is offered by stronger brands, and extensions are often cheaper bought with the unit than later.
- Size the inverter against the loads you need to run simultaneously, not against the total wattage of every appliance in the building — a 5 kW inverter comfortably runs a fridge, fans, lights and a couple of ACs, but not all of them plus a water pump starting at the same time.
- Keep the panel array between roughly 1.0 and 1.3 times the inverter's rating. Slight oversizing (a higher DC-to-AC ratio) captures more energy on cloudy mornings and winter days; going far beyond it wastes generation through clipping.
- Check the surge rating if you run motors — deep-well pumps, compressors and older air conditioners can draw two to three times their running current for a few seconds at start-up.
What people get wrong
- Overlooking the IP rating. An outdoor installation needs at least IP65; indoor-rated units mounted outside fail early.
- Buying on peak-watt price alone. A cheap inverter with a narrow MPPT window forces awkward string layouts and can strand a portion of the array.
- Ignoring the ambient temperature rating. Inverters derate in heat, so a unit rated 5 kW at 25 °C may deliver noticeably less on a hot roof-adjacent wall at 45 °C.
Price and availability
Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter is listed at ₨ 65,000 (PKR). Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.
SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Knox locally before ordering.
Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter — frequently asked questions
How much does Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter cost?
Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter is listed at ₨ 65,000 (PKR). The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.
What are the specifications of Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter?
We hold 13 published specifications for this inverter, including transfer time 10 ms (For Personal Computers) ; 20 ms (For Home Appliances), battery voltage 24 VDC, rated power 3000VA/3000W, surge power 6000VA and frequency range 50 Hz/60 Hz (Auto sensing). The full table is on this page, listed under model KNOX-20.
Who makes Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter?
Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter is a Knox product, listed under inverters with model reference KNOX-20. The Knox brand page lists the rest of its range so you can compare across the catalogue.
Is Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter right for my system?
That depends on what it has to connect to. For an inverter, check the MPPT voltage window, which decides how many panels go in a string, peak and weighted (European/CEC) efficiency, typically 96–98.5% and topology — on-grid, off-grid, hybrid or micro against the rest of your equipment before price enters the decision. Match the battery communication protocol (CAN bus or RS485) between inverter and battery. Compatible voltages are not enough; without a supported protocol the battery management system and inverter cannot agree on charge limits.
Where can I buy Knox Argon VM II 3Kw PV4000 Off-Grid Solar Inverter?
SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer — buying in-channel is what keeps the manufacturer's warranty valid.
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