Harmony Plug in Relays is a complete range of general purpose industrial relays, sockets and accessories. Harmony 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 Harmony 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. Most of these relays plug into a relay socket that can be DIN rail mounted or panel mounted. Harmony plug in relays are UL Listed. A 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, building or medical equipment, lighting controls. It is a green premium product and conforms to international standard and certifications like IEC, CE, UL, CSA, EAC, Lloyd's, RoHS and REACH. RXM Relay should be used with a RXZE socket (screw clamp, screw connector, push-in terminal). To protect against vibrations, plastic/metal clamp can be added to the socket. Protection modules and marking legend are also available. It is sold in lots of 10 and reference includes relay only. The RXM plug-in relays are a series of industrial plug-in relays designed for both simple and complex automation systems and available with 2 CO (12A), 3 CO (10A), 4 CO (6A) contacts, 4 CO (3A) low level contacts.