Ranco 016 models are single pressure switches with changeover contacts.
LP Range - bar –0.3 to 7.0 Differential - Auto reset 0.6 to 4.0 – Manual 0.6 fixed HP Range – bar 7 to 30 Differential - Auto reset 2.5 to 8.0 – Manual 3.2 fixed 017 models are dual switches fitted with an extra contact to give an independent high or low-pressure trip signal.
