Fireboy-Xintex Shutdown System w/Round Display Engine. Engine Shut Down System Specifications for Fireboy-Xintex Engine Shutdown System w/Round Display: Manufacturer: Fireboy-Xintex Color: Black Features of Fireboy-Xintex Engine Shutdown System w/Round Display 3 - 10 Amp Circuits 12 VDC Engine Shut Down System Round Display Package Contents: Fireboy-Xintex Engine Shutdown System w/Round Display Fireboy-Xintex ES-3000-01: Shutdown System w/Round Display Engine