You need to provide the link you are referring to so I can give you an accurate answer. However, I can give you the general requirements for a service disconnect to help you determine if the disconnect in your link meets them

General Requirements for a Service Disconnect (According to the NEC - National Electrical Code - which is widely used in the US, but local codes might differ):
Rated for Service Entrance

The disconnect MUST be specifically listed and rated for service entrance use. This is a critical factor. It means the disconnect has been tested and approved to handle the full fault current and voltage of the utility service. Often, this is indicated by labeling on the disconnect itself or within the product specifications. Look for "Suitable for Use as Service Equipment" or similar wording.

Ampacity

The disconnect must have an ampacity rating equal to or greater than the calculated load of the service. Your solar installation will add to this load, so the disconnect must be sized to handle the combined load of the existing service plus the solar backfeed. A licensed electrician should perform this calculation.

Interrupting Rating (AIC)

The disconnect must have a sufficient Ampere Interrupting Capacity (AIC) rating. This rating indicates how much fault current the disconnect can safely interrupt. The AIC rating must be equal to or greater than the available fault current at the service entrance. The utility company can usually provide this information.

Simultaneous Disconnect

The disconnect must simultaneously disconnect all ungrounded (hot) conductors.

Readily Accessible

The service disconnect must be readily accessible. This means it can be reached quickly and easily in case of an emergency. It should not be behind locked doors or require tools to access (unless it's a lockable service disconnect used for maintenance).

Marked and Labeled

The disconnect must be clearly marked and labeled to indicate its purpose as the service disconnect.

Suitable for the Environment

The enclosure of the disconnect must be suitable for the environment where it is installed (indoor, outdoor, wet location, etc.). NEMA ratings indicate the level of protection offered.

Approved

The disconnect must be listed by a recognized testing laboratory (e.g., UL, ETL).

In Summary

Without the link, I cannot give a definitive answer. But carefully check the product description and specifications of the disconnect you are considering. Look for: "Suitable for Use as Service Equipment" (or similar) The Ampacity Rating The AIC Rating The enclosure's NEMA rating (if applicable for the installation location)* Listing by a recognized testing laboratory (e.g., UL)

Crucially, you MUST consult with a qualified and licensed electrician who is familiar with local codes and NEC requirements. They can properly assess your specific situation, perform the necessary calculations, and ensure that the disconnect is suitable and installed correctly. Improper installation of service entrance equipment can be dangerous and violate electrical codes.

Do NOT attempt to install service entrance equipment yourself unless you are a qualified and licensed electrician. Flag for review