Magnetic/hydraulic circuit breakerwith automatic rechargeable fuse. Specifically designed for marine environment. Designed to mantein the contact for few seconds for over charges up to 50%. In case of short circuit, you can't reactivate the switch befor the problem shold be removed. Made of black polycarbonate. Compact dimension: front panel 17x34 mm. Depth 34 mm. Faston terminals. Mounting stern D.12,7 mm. 12/24V. 20A.