This Interfacing Plug-In Relay reflects Schneider Electric expertise in relay since 1924 by helping to reduce the size of enclosures and at the same time increase machine reliability. Its design 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 has a large choice of number of contacts for high rated current use. It also offers lockable test button and LED indicator.