The EL2652 output terminal has two relays each with a changeover contact, which can be used universally for the switching of mains voltage consumers of 230 V AC or 300 V DC. The EL2652 features potential-free contacts. The signal state of the EtherCAT Terminal is indicated by light emitting diodes.

Special features:

• Relay output
• 2x changeover contacts
• Reverse switching is possible
• Connection of different load types (ohmic, inductive, lamp load)
• potential-free
• no power contacts

https://www.beckhoff.com/vi-vn/products/i-o/ethercat-terminals/el2xxx-digital-output/el2652.html