Phoenix Contact – STIO 2,5/3-PE/B/L-DIO/M-O
 Sensor/actuator terminal block – STIO 2,5/3-PE/B/L-DIO/M-O – 3209219; Sensor/actuator terminal block, with integrated diode, nom. voltage: 24 V, nominal current: 18 A, connection method: Spring-cage connection, number of connections: 4, cross section: 0.08 mm² – 4 mm², AWG: 28 – 12, width: 5.2 mm, color: gray, mounting type: NS 35/7,5, NS 35/15