YIDI 1pc 50A 100A 200A 300A Car Battery Disconnect Cut Off Kill Switch 12V 24V DC Rotary Power Isolator Motorcycle Truck Boat Accessories Product Features: The battery switch can protect the power supply and safely prevent leakage. Switch to OUT, you can remove the red cover equivalent to a key. Effectively prevent others from accidentally changing the connection, fully insulate the terminals on the back, and prevent short circuits. When the vehicle is not in use, it can eliminate the power consumption of the battery. Small size, sturdy and durable. Easy to install, the knob can be detached. Suitable for cars, off-road vehicles, trucks, motorcycles, ships, etc. 1. 50A Max. 50V DC Car Battery Switch Mounting Hole:about 22mm Material:ABS plastic + copper plated silver inner core Switch Function: 2P SPST OFF-ON Rated Current:50A Voltage: 50V DC max (50A) Intermittent Rating:150 A Cranking Rating: 300 A5 sec Contact Resistance:50m ohm max Insulation Resistance:500V DC 100m ohm Min Dielectric Strength:1000V AC 1 minute, 2000V DC1 minute 2. 100A Max. 32V DC Car Battery Switch MountingHole: about 29mm Material: ABS plastic + copper plated silver inner core Switch Function: 2P SPST OFF-ON RatedCurrent:100A Voltage:32VDCmax (100A) IntermittentRating:150A Cranking Rating:500A5sec Contact Resistance:50mohmmax Insulation Resistance: 500V DC 100m ohm Min Dielectric Strength: 1000V AC 1 minute, 2000V DC1 minute 3. 200A Max. 32V DC Car Battery Switch MountingHole:about38mm Material: ABS plastic + copper plated silver inner core Switch Function: 2P SPST OFF-ON RatedCurrent:200A Voltage: 32VDC max (200A) IntermittentRating:300A Cranking Rating:1000A5sec Contact Resistance:50mohmmax Insulation Resistance: 500V DC 100m ohm Min Dielectric Strength: 1000V AC 1 minute, 2000V DC1 minute 4. 300A Max. 32V DC Car Battery Switch MountingHole:about 52mm Material: ABS plastic + copper plated silver inner core Switch Function: 2P SPST OFF-ON RatedCurrent: 300A Voltage: 32VDC max (300A) IntermittentRating: 450A Cranking Rating:1000A 30sec Contact Resistance:50mohmmax Insulation Resistance: 500V DC 100m ohm Min Dielectric Strength: 1000V AC 1 minute, 2000V DC1 minute