This Harmony RPM power plug-in relay has a control coil voltage of 110V DC and has 3 changeover contacts triple pole double throw with a rating of 15A.It has a large choice of number of contacts for high rated current use.It also offers one-step lockable test button and “Power On” LED for readiness.It helps to reduce the size of enclosures and increase machine reliability, you can mount nearly everywhere.This RPM product is IP40.Workability for hard-wired logic automated systems to complement the functions of industrial programmable logic controllers (PLCs).Status display with LED, clearly signal both in the day and night.