Isolator Switch 1-2-Both-Off 12V-48V 200A RV Selector Power Cut Off Battery Switch Product Overview Heavy-duty ABS plastic isolator switch designed for dual battery systems with 1-2-Both-Off switching capability. Features rugged construction, premium copper terminals, and versatile voltage range from 12V to 48V. Key Features Built Tough for Safety - Rugged ABS plastic housing with rear cover to protect terminals from short circuits. Includes 4 sets of bolts. Smooth & Simple