Electrical Questions? Ask an Electrician Online.
Welcome. My name is ***** ***** would be glad to assist.
Looking over the information from the previous posting, it appears you decided to acquire a different switch than was proposed.
Since unable to find any information on the QS-15, nrrd you to look inside the top cover and see if the contact configuration is shown.
Or if they sent documentation with the switch.
Nothing is found online and could be due to the switch being made in China and only available through certain avenues in North America.
Let me know and we can continue,