Review on Siemens QF250A GFCI (Ground Fault Circuit Interrupter) by Mark Sharma

. I used this product for the main paneling of a hot tub installation. This GFCI switch automatically tests itself every 15 minutes, which is great for hot tubs. The installation was basically very simple. I had a small issue with the neutral screw being too tight from the factory, but I was able to resolve it. I also had to remove the opposite switch to block it before replacing the other switch. It fit, but it was tight. In general, the purchase is satisfied.