Key benefits Simple DC 12V 20A control: reliably connect and disconnect a 12V circuit with a single SPST ON OFF switch. Clear visual status: red LED lights up when the switch is ON for easy indication. Quick and secure panel installation: fits a 20 mm hole with a keyhole slot to prevent unwanted rotation. Ready to install: pre wired design with a 200 mm (7.8 in) wire length reduces wiring work and costs. Robust electrical performance: copper plated silver contacts provide good conductivity and low contact resistance. Safe construction: flame retardant housing adds safety for electrical installations. Flexible configurations: 2 pin version available. Specifications Circuit: DC 12V, rated for 20A Switch type: SPST ON OFF LED indicator: Red, lights when switch is ON Pin configuration: Copper pin connected to battery negative; next pin to battery positive; last pin to equipment positive Hole diameter for panel mounting: 20 mm (0.8 in) Wire length (pre wired): 200 mm (7.8 in) Variants: 2 pin version; 3 pin version with LED Housing: flame retardant Contacts: copper plated silver for improved conductivity Wiring guide Pin 1: copper pin connected to the battery negative pole Pin 2: connected to the battery positive pole Pin 3: connected to the equipment positive pole Materials and safety Contacts: copper plated silver for reliable electrical performance Housing: flame retardant for enhanced safety in electrical assemblies Use scenarios Automotive accessories: control lights, pumps, or other 12V accessories in cars, trucks, or motorcycles with clear ON/OFF indication. Marine or RV power systems: switch auxiliary circuits on/off while on water or on the road, with a visible LED status indicator. DIY electronics or solar projects: manage DC loads up to 20A in hobby projects, battery banks, or small off grid installations with easy installation and reliable performance.