Inverters

AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA]

$ 199.99USD · price may vary

Model: DS3-S-NA-640VA
Specifications: 0

Overview

APsystems 3rd generation of dual microinverters are reaching unprecedented power outputs of 640VA or 768VA or 880VA to adapt to today’s larger power module. With 2 independent MPPT, encrypted ZigBee signals, the DS3-S, DS3-L and DS3 benefit from an entirely new architecture and are fully backwards compatible with the QS1 and YC600 microinverters.

The innovative and compact design make the product lighter while maximizing power production. The components are encapsulated with silicone to reduce stress on the electronics, facilitate thermal dissipation, enhance waterproof properties, and ensure maximum reliability of the system via rigorous testing methods including accelerated life testing. A 24/7 energy access through Apps or web based portal facilitate remote diagnosis and maintenance.

The DS3 series is interactive with power grids through a feature referred to as RPC (Reactive Power Control) to better manage photovoltaic power spikes in the grid. With a performance and an efficiency of 97%, a unique integration with 20% less components, APsystems DS3-S, DS3-L and DS3 are a game changer to residential and commercial PV.

One microinverter connects to two solar modules

Max output power reaching 640VA

Two independent input channels (MPPT)

CA Rule 21 (UL 1741 SA) compliant

NEC 2020 690.12 Rapid Shutdown Compliant

Encrypted Wireless ZigBee Communication

Phase Monitored and Phase Balanced

TECHNICAL SPECIFICATIONS

SKU: DS3-S-NA-640VA

Weight: 6.000000

Manufacturer: APSystems

What these specifications mean

Detailed specifications for AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] have not been published yet. AP Systems lists this inverter in the Inverters, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.

For an inverter, the figures that matter most are peak and weighted (European/CEC) efficiency, typically 96–98.5%, topology — on-grid, off-grid, hybrid or micro, continuous AC output in kW, which caps the load you can run at once and surge or peak rating, which covers the brief inrush of motors and compressors. 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.

What to check before ordering

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.

Common mistakes

Assuming any grid-tie inverter keeps the lights on during an outage. Standard on-grid units shut down for safety unless they have a dedicated backup or islanding output.
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.

Price and availability in United States

AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] is listed at $ 200 (USD) for United States. 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 United States: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports AP Systems locally before ordering.

AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] — frequently asked questions

How much does AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] cost?

AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] is listed at $ 200 (USD) for United States. 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.

Who makes AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA]?

AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] is a AP Systems product, listed under inverters with model reference DS3-S-NA-640VA. The AP Systems brand page lists the rest of its range so you can compare across the catalogue.

Is AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] right for my system?

That depends on what it has to connect to. For an inverter, check peak and weighted (European/CEC) efficiency, typically 96–98.5%, topology — on-grid, off-grid, hybrid or micro and continuous AC output in kW, which caps the load you can run at once against the rest of your equipment before price enters the decision. 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.

Where can I buy AP Systems DS3-S Dual Microinverter 640VA [DS3-S-NA-640VA] in United States?

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 in United States — buying in-channel is what keeps the manufacturer's warranty valid.

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