EC6543-000 from TE Connectivity is a 4-way Safety Relay Socket. It is designed for use with 4-pole safety relay modules with precision contacts. It features a robust, slotted design that offers quick and easy connection of the relay module and its contacts. This socket offers protection from dust, dirt and other contaminants, as well as from mechanical damage. It also has integrated short circuit protection to protect the relay module and its contacts from external damage.