Connect to SSH server using Nautilus

Trying to connect to SSH server using Ubuntu file explorer. I have already connected to that server using SFTP, but now I would like to do the same via SSH.

By entering address and pressing connect because of unknown reason it connects to recent connection via SFTP. Why not SSH? How to fix it?

Did you read docs about Nautilus? There are examples of what should work. And from your tried, only this one is mentioned:

ssh://[email protected]/folder

but it is automatically rewritten in "recent servers" to:

sftp://[email protected]/folder

Basically, there is no ssh file transfer protocol. SSH is just Secure Shell or secure channel to pass data. If you want to transfer files, you need to use something built upon it. And sftp is the most commonly used protocol for doing so. The only more common is scp and it is too limited for remote filesystem mounts.