ASI Z121213 are zinc flat DIN rail mounted supports for stabilizing high current terminal blocks. They are 20 mm high and have a fixing center range from 60 to 70 mm. There are two slots on either end of the support measuring 7 x 12 mm providing for a 6MA screw hole is in the center of the bracket. It provides support on standard 35 mm wide DIN rail like PR003-1M or PR005-1M (sold separately).