Schneider Electric's Square D heavy duty safety switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. All heavy duty safety switches feature a quick-make, quick-break operating mechanism, a dual cover interlock, and a color coded indicator handle. They also come with many field installable or factory installed accessories. The design life of a F-Series switch is a minimum of three times the NEMA requirement. This solid neutral assembly is insulated and groundable. It has one terminal in and one terminal out, with two additional grounding terminals. Each main terminal accepts 14 AWG to 1/0 AWG, and the ground terminal accepts 14 AWG to 6 AWG. This accessory complies with UL and CSA standards.