The relay can replace conventional contactors while offering the advantages of requiring less space and lower labor costs for installation. The relay is particularly well-suited for applications that demand high reliability. These include PV/ESS inverters, fast EV chargers, and power supply/UPS systems. The reliable auxiliary contact of the relay can expedite the replacement of contactors with PCB relays. The high reliability of the auxiliary contact is a crucial factor for use in systems that require high operational safety. Designers can replace conventional contactors with auxiliary contacts with fewer design changes using this relay.