Pico 5575pt Master Batt Isolator Switch Provide Theft and Fire Protection Includes Moisture Proof Cap 2 Position On-Off with Removable Key 3/8" x 3/4" Length Studs, 4 3/16" Mounting Holes in Base 12 Volt 500 AMP DC Momentary(10 Seconds), 12 Volt 350 AMP DC Continual