Feed-through terminal blocks with screw connection from the SNA series are available in widths from 5 mm to 36 mm. They can be snapped onto symmetrical and asymmetrical rails. They enable simple potential distribution with 3 or 4 independent connections. ABB's screw connection technology was developed to prevent the connections from coming loose due to vibrations, impacts or even accidental pulling on the cable. Thanks to the exclusive design, re-tightening the connections is no longer necessary in every case. They cover a connection requirement of 0.22 mm² to 240 mm². The screw connection technology allows up to two conductors to be connected per terminal, thus ensuring more flexibility in the control cabinet. Simple cable routing, as the conical opening guides the conductor precisely into the terminal cage.