The 1597D4MBC is an Italtronic terminal insert with a bus connector, sized for DIN 4 enclosures in the 1597DM Series of DIN rail mounted enclosures. The series accessory table lists it as the DIN 4 terminal cover "With Bus Connector", and the DIN 4 top-cover drawing includes it in the accessory list for the grey Module 4 enclosure 1597DIN4MH53.

It is made from PC-ABS with a UL94 V-0 flame rating. At 2.77 in x 0.66 in x 0.79 in (70 mm x 17 mm x 20 mm) it is wider than the DIN 4 holed and punch-out covers, which measure 14 mm across. Shipping weight is 0.01 lbs (0.00 kg), and the part is RoHS and REACH compliant.

DIN group numbers in the 1597DM range refer to the number of terminals on each side of the enclosure. The DIN 4 terminal-cover family also includes a version with holes (1597D4MTC6), one with punch-out holes (1597D4MTCKO) and an inside terminal cover (1597D4MHSC). Hammond notes that some accessories are not compatible with all enclosures in a DIN size group, so check the enclosure drawing to confirm fit.

The 1597D4MBC suits panel builders and OEM engineers housing PCBs and terminal blocks on DIN rail. Some chemicals can damage or weaken plastic, so check the manufacturer's Chemical Resistance Statement before using solvents, thread-locking compounds or cutting fluids near the part.