When I turn on (close) the battery disconnect to power the lynx distributor the 125A 48V (Victron) fuse blows on the battery connection In the Lynx. The only thing connected to the bus bars on the lynx distributor distributor is the inverter and the batteries. I checked and rechecked polarity and everything is correct. The 48v batteries are reading 53V. The inverter is off. A smart shunt if correctly installed between the bat negative and the negative bus bar on the distributor. The shunt bat plus and aux cables are connected to the bat pos terminal and the mid point positive. As far as I can tell everything is connected properly and secure and there is no reverse polarity. What would cause the fuse to blow When the Disconnect is closed (on) and the distributor is powered?