This Zelio RPM power plug-in relay has a coil control voltage of 230V AC and has 1 changeover contact SPDT (single pole double throw) with a rating of 15A. It has large choice of number of contacts for high rated current use. It helps to reduce the size of enclosures and increases machine reliability: you can mount nearly everywhere. Plug in type enables easy installation and maintenance. Workablity for hard-wired logic automated systems to complement the functions of industrial progammable logic controllers (PLCs).