【Durable Material】Battery isolator switch made of ABS plastic housing with 4 sets of tinned copper bolts (10mm) and nuts for ignition protection, and it is easy to distinguish different gear sounds even at night. 【Easy to Use】RV isolator switch with on/off position in bright labels. Switch ON = power (green) to closed circuit, Off = no power (red) to closed circuit. 【Voltage】Used for 12-48V, 275A continuous current 12V DC, 455A intermittent 12V DC, 1250A short term – 12V DC. The battery isolator switch can be autonomous or interlocked. with another switch to minimize battery loss and effectively prevent electrical leakage. 【Safe and Protective】The main switch battery has CE certification and 4 removable side plates, the rear cover isolates the terminals against short circuits. 【Wide Application】The battery isolator switch serves as a power cut-off and is suitable for RVs, ATVs, cars, boats, campers, caravans, trailers, trucks, UTVs, etc.