12V Battery Disconnect Switch with two on/off positions. Rated for 275 A DC continuous (1 hour), 455 A DC intermittent (5 minutes), and 1250 A DC cranking (10 seconds). Bolt studs: two 3/8 inch (10 mm). High quality construction and safety - Built from durable ABS plastic for long life and reliable protection - The back cover insulates the terminals to prevent short circuits - Uses tin-plated M10 copper studs and includes two conductive copper plates for safer, more reliable electrical conductivity - Designed to maintain a secure, low-resistance connection under load Easy installation - Includes two mounting clamps made from conductive copper plates - Designed to be installed on the positive battery terminal to match common operating habits - The unique design provides flexible and easier installation compared with other designs Applications and use scenarios - Motorhomes and RVs: quickly isolate the house battery to prevent drain or during service - Boats and marine systems: disconnect the battery safely to protect electronics and reduce risk of short circuits - Off-grid solar and backup power: reliably disconnect loads or the battery bank as part of a system shutdown or maintenance Key attributes - Function: 12V battery disconnect with two on/off positions - Compatibility: suitable for 12V DC power systems - Size and connection: two 3/8 inch (10 mm) bolt studs, tin-plated copper construction - Materials: ABS housing, tin-plated copper studs, conductive copper plates - Performance: high current ratings suitable for continuous, intermittent, and cranking applications - Safety: back cover isolates connections to reduce short-circuit risk This battery disconnect switch provides clear, dependable control over 12V battery systems, with robust materials and a straightforward installation designed for reliability in mobile and off-grid applications.