Simple Force SSL Plugin
This plugin forces the site to load over https version of the website, using 301 redirect.
Using this plugin you can force the site to load over ssl. It redirects the user to the https version of the website.
Installation
Upload Simple Force SSL to the /wp-content/plugins/ directory
Activate the plugin through the ‘Plugins’ menu in WordPress Edit any page and add destination URL to the option metabox on the top right. For removing a redirect, simply blank out the field.