Zelio plug-in Relays is a complete range of general purpose industrial relays, sockets and accessories. Zelio plug-in relays optimize design flexibility, expedite installation and simplify maintenance with 8 to 30 A load ratings, multiple contact combinations, a wide range of coil voltages, and full feature covers. The Zelio plug-in relays have a test button which allows users to check circuits for proper operation. They have lock down door holds contacts in place to test circuits during maintenance. A standard mechanical flag indicates relay status. An optional bipolar LED indicates operation when relay is energized green LED on the front will illuminate when the relay is on. Status display with LED: clearly signal both in the day and night. Its design is fit for industrial machines, packaging, textile, HVAC, automation control panels, low/medium voltage switchgear, motor controls, PLC Interfaces, power supplies, lighting controls, RXM Relay should be used with a RXZE socket.