Bus Bar Enclosed 4 Way 300A BEPMulti purpose bus bar (Rated 100A) And Distribution bus(703-300A)Allows for bus bars to be separated using insulation partition as supplied (as illustrated) or Bus bars can be combined using the link supplied. For dc negative & positive common or separated, or ac neutral earth (linked or separate).Distribution bus(703-500A)Designed to take loads from heavy-duty starter circuits. Taller cover allows for more bulky cables and lugs.Ammeter shunt enclosureProvides a protective housing for shunt termination meeting ABYC standards. Shunts ordered separately.Digital large: 450A - 50mV (see page 771) Analog small: 50A - 50mV, 100A - 50mV, 150A - 50mV Takes 2 small or one large shunt