Battery Disconnect Switch Main Circuit Breaker Cut-off Switch 12V 24V 48V for Marine Boat RV Waterproof Battery Breaker [Operation] On/Off 2 Position 275A continuous (1 hour) at DC 12V, 455A intermittent at DC 12V (5 min), 1250A cranking (10 sec) at DC 12V[Size] 2 standard 3/8 inch (10mm) copper terminals. Standard 2-1/16 inch (52mm) bore (same as standard gauge bore); Inside: Inner inserts for 3/16 inch (4.8mm) nuts for full cable access without restriction. Equipped with 4 screws for installation[Robust construction] ABS plastic housing to withstand harsh marine environments, small size, sleek modern design, sturdy and durable made with safety in mind[Compatibility] our battery master switch is used for cars, marine boats, RVs, RVs, travel trailers, trucks, ATVs, UTVs and other 12V 24V 48V devices to isolate and protect the electrical system, disconnects the battery securely to eliminate any power draw from the battery when the vehicle or boat is not in the Benefit of the [Wall Mount Panel] This battery disconnect switch is designed specifically for the application panel mounting; Countersunk Recess Head for Surface Mount Application Operation: On and Off Continuous Current: 275A DCintermittent Current: 455A DCstarting Speed: 1250A DCContard: 6V-48V DC ABS Plastic Housing, Durable. Insulate and protect the electrical system, it can stand alone or be locked together with another switch. Eliminate power draw from the battery when the vehicle or boat is not in use, safely disconnects the battery. The back cover insulates the terminals from short-circuiting. Material: ABS Plastic Color: Black + Red Package Contents: 1 x Battery Breaker 4 x Fixing Screws Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.