I am powering a ROV from a 4S LiPo battery (12.0 V minimum, 16.8 V maximum). The resistance of the battery is 36 mΩ, so that a maximum current of 470 A can flow through a short-circuit. In order to avoid risk of fire, I would like to implement short-circuit protection. The machine draws a peak current of 100 A (with a safety factor of 1.2 applied). Therefore the short-circuit protection device must trip at a current between 100 A and 470 A. I have been unable to find fuses that are rated at 12 V and a suitable Amperage. I have found the following product, intended for caravans and boats:
But I am unable to find a data sheet that confirms its specifications and timing. Could anyone please advise me whether a fuse or alternative circuit breaker for this application exists, and if so, if it would be sufficient to avoid damage to the vehicle?