500 Watt Solar Micro Inverter, Grid-tie Inverter

$255.67

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High quality and reasonable price 500W micro inverter for sale online. The operating ambient temperature range of this solar micro inverter is -40℃ to 65℃. The micro power inverter has an IP65 waterproof grade. MPPT efficiency of this photovoltaic micro inverter can reach 99.9%. 500-watt grid tie micro inverter is widely used in household use, agriculture, and communications area.

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Delivery date: 6-12 days

SKU: ATO-SMI-SG500MS

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Overview
Specs
Manual
FAQ
Reviews

Overview

A 500-watt solar grid tie micro inverter is a compact device used in solar power systems to convert the direct current (DC) generated by solar panels into alternating current (AC) for use in homes or businesses. A 500-watt rating indicates the maximum power it can handle from the solar panel. Micro gird inverters enhance the efficiency, reliability, and monitoring capabilities of solar installations, enabling users to track the performance of each panel individually. Their modularity also simplifies system expansion and maintenance.

Features:

Use the Wifi communication mode.
Flexible installation, operation, and maintenance costs are low.
High-performance maximum power point tracking (MPPT), reverse power transmission, increasing system efficiency.
Various protections: isolated island protection, voltage protection, frequency protection, temperature protection, and current protection.

Details:

IP65 Waterproof

The shell of the 500-watt photovaltaic micro inverter is made of pure aluminum alloy with a low resistance copper core. It enhances safety by reducing the risk of electrical hazards, such as short circuits or corrosion due to moisture exposure. They protect against water ingress, preventing damage and ensuring the longevity of the system.

MPPT

MPPT enhances energy harvest, leading to higher overall system efficiency and increased electricity production. It also improves system reliability and longevity by reducing stress on components. Additionally, MPPT allows for more flexible system design, as each panel operates independently, making it easier to expand or modify installations without impacting the overall performance of the micro inverter 500W.

Streamlined Appearance

A streamlined appearance in solar micro inverters enhances aesthetic appeal, reduces size and weight for easier installation, and minimizes visual clutter, making it easier to integrate into tight or visually sensitive areas. This design often improves heat dissipation and durability, contributing to better overall performance of the solar grid tie micro inverter.

Applications:

Solar Roof

PV Communication Station

Farming Generation System

Small Power Station

Specs

Model	ATO-SMI-SG500MS
Input Data (DC)
Number of Input Multi-Contact 4mm Connectors	1 set
MPPT Voltage Range	28V-55V
Operation Voltage Range	20V-60V
Maximum Input Voltage	60V
Startup Voltage	20V
Maximum Input Power	500W
Maximum Input Current	16.66A
Output Data (AC)
Single-Phase Grid Type	120V / 230V
Rated Output Power	480W
Maximum Output Power	500W
Nominal Output Current	@120VAC: 4.16A / @230VAC: 2.17A
Nominal Output Voltage	120VAC / 230VAC
Default Output Voltage Range	@120VAC: 80V-160V / @230VAC: 180V-260V
Nominal Output Frequency	50Hz & 60Hz
Default Output Frequency Range	@50Hz: 47.5Hz-52.5Hz & @60Hz: 57.5Hz-62.5Hz
Power Factor	>0.99
Total Harmonic Distortion	THD <5%
Maximum Units per Branch	@120VAC: 4 units / @230VAC: 9 units
Efficiency
Peak Efficiency	95%
CEC Weighted Efficiency	@120VAC: 92.5% / @230VAC: 93.5%
Nominal MPPT Efficiency	0.999
Night Power Consumption	<700mW
Mechanical Data
Operating Ambient Temperature Range	-40 °C to +65 °C
Storage Temperature Range	-40 °C to +85 °C
Dimensions (W x H x D)	145mm x 140mm x 37mm (not including connectors and cable)
Net Weight	0.8 kg
Max Current of AC Bus Cable	20A
Waterproof Grade	IP65
Cooling Mode	Natural Convection - No Fans
Other Features
Communication	WIFI
Transformer Design	High Frequency Transformers, Galvanically Isolated
Integrated Ground	Equipment ground is provided by the PE in the AC cable. No additional ground is required.
Protection Functions	Isolated Island Protection, Voltage Protection, Frequency Protection, Temperature Protection, Current Protection, etc.
Design Compliance	CE etc.

Manual

500W Micro Inverter User Manual

FAQ

How long is the lifespan of a micro inverter?

A pv micro inverter typically has a lifespan of around 10 to 15 years, which is quite comparable to the lifespan of solar panels themselves. This durability is largely due to their robust design and the fact that they are exposed to lower stress compared to traditional string inverters. Solar micro inverters are installed on each individual solar panel, which means they work independently and experience less strain than a single inverter managing an entire array. This distributed approach helps to extend their operational life.

However, the actual longevity can vary based on factors such as environmental conditions, installation quality, and maintenance practices. Regular monitoring and upkeep can help ensure that solar power micro inverters perform effectively throughout their lifespan, maximizing their efficiency and reliability in a solar energy system.

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Existing reviews

The only downside is it’s not ideal for larger systems.

I’ve been using this 500W solar micro inverter for a few months now, and it's been working great for my small home setup. It’s holding up well in both hot and cold conditions. The only downside is it’s not ideal for larger systems, but for what I’m using it for, it’s enough.

From: Dunn Sinclair | Date: 2/10/2025 1:41 AM

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Very cost-effective

I bought this 500 watt solar micro inverter two months ago. This little grid-tie micro inverter does the job and does it well. So far, it has functioned as advertised without issues. It was easy to install. I highly recommend this micro inverter since it is fairly efficient.

From: Zachary Brooks | Date: 10/11/2024 12:17 AM