Protective conductor terminal blocks with screw connection from the SNA series are available in widths from 5 mm to 36 mm. They enable a reliable electrical and mechanical connection to the rail. They can be snapped onto symmetrical and asymmetrical rails. Protective conductors are available as both double and three-level terminal blocks. 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, retightening the connections is no longer necessary in every case. They cover a connection requirement of 0.22 mm to 240 mm. 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.
