Beckhoff KL2722 original relay output

The KL2722 is a two-channel triac output terminal from the Beckhoff Bus Terminal series (KL series) for the traditional K-Bus I/O system. It uses triac semiconductor output stages to switch 230 V AC loads without moving contacts, providing long life, fast switching, and no contact wear. It is used to switch AC lamps, heaters, valves, and other 230 V AC loads in applications requiring high switching frequency or long service life. It belongs to the same AC solid-state output family as the KL2701, KL2702, and KL2712. Unlike EtherCAT terminals (EL series), the KL series communicates via the K-Bus and is typically used with Beckhoff Bus Couplers or Bus Terminal Controllers.