https://www.se.com/mk/en/product/RSB2A080P7PV/interface-plug-in-relay-harmony-electromechanical-relays-pre-assembled-8a-2co-with-led-and-protection-circuit-230vac-32500ohm-coil-resistance/
Schneider Electric Macedonia. RSB2A080P7PV - Interface plug in relay, Harmony electromechanical relays, pre assembled, 8A, 2CO, with LED and protection...
plug ininterfacerelayharmonyelectromechanical
https://www.ni.com/en-th/shop/product/electromechanical-relay-protection-trainer.html
The Electromechanical Relay Protection Trainer helps you learn the basics and main principles of relay protection circuits using different relays.
electromechanical relayprotectiontrainer