ABB PS1-4-1-65 is a 3‑phase busbar accessory for the ABB PS1 motor-starter family, designed to carry four motor-protection devices (MS116, MS132, MO132) on a single PS1 assembly. It provides an Ie rated current of 65 A and includes one auxiliary contact on the side for signaling. By consolidating four devices onto a shared bus, it simplifies wiring and reduces panel footprint in machinery-control installations. As a member of ABB's PS1 line, it complements other PS1 components used in industrial motor-control applications.
