What stands out about this unit is the Potter & Brumfield badge and simple, sturdy construction.
Potter & Brumfield MR14a 3pdt 8 amps 175v ac multiple contact relay
Potter & Brumfield relays like this one feel dependable, with smooth actuation and clean terminal spacing.
This Potter & Brumfield relay looks clean, with tidy contacts and a coil that seems well sealed.