8077 AC Main Only Toggle Circuit Breaker PanelFeatures:. Red reverse polarity indicating LED. Safety ground screw on panel back. Combines switching and circuit protection into a single device. "Trip Free" design cannot be held "ON" during fault current condition. Specifications:. Nominal Voltage: 120v AC. Maximum Voltage: 277v AC / 65v DC. Height: 3.75". Width: 2.63". Included:. (1) 8034 LED - 120v AC Green. (1) 8066 LED - 120v AC Red. (1) 7238 A-Series White Toggle Circuit Breaker - Double Pole 30A (Main). WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.