Product OverviewThe MT006-K is the key-operated version of our two-stage marine battery isolator: the same 32V / 300A switching platform, but with a lock cylinder in place of the plain knob so the circuit can only be changed by someone holding the key. It is the model to specify where an unattended boat, stored vehicle or shared equipment must not be switched back on by anyone who happens to walk past.Electrically the unit is unchanged — a 300A continuous rating over a 32V DC