2141. Amperage: 40A. Features:. Weatherproof. Can be used as Main, Branch, or 24 hour circuit protection. Compact design enables high density circuit protection configurations. Push-to-reset operation. "Trip Free" design cannot be held "ON" during fault current condition. Ignition protected - Safe for installation aboard gasoline powered boats. Captive star lock washers meet requirements for anti-rotation and eliminate handling of small, easily dropped parts. 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.