Specifications: Material: ABS plastic housing, durable!Terminal material: Tinned copperTerminal Diameter: 3/8"(10mm)Design: Fully enclosed design to protect wiring from dirt, corrosion, and rain.2 Positions: On/Off.Voltage: Used for DC 12 - 48V systems to isolate and secure the electrical system.Rating: 275 A continuous at DC 12V, 455 A Intermittent at DC 12V, 1250 A momentary at DC 12V. 4 stainless screws for mounting!