When looking for examples or tutorials that show HTTPS redirections with IIS and URL Rewrite, you'll find all variants of redirectType:
When you like clients to use HTTPS the next time, use Permanent. If you're trying the redirection for a while and you're not sure if you want it to be permanent, use Temporary.
Sort of the same question is answered by more people here: https://webmasters.stackexchange.com/questions/22268/when-redirecting-from-http-to-https-in-a-shop-site-which-status-code-should-i-u