Europa R4N Miniature Industrial Relay with mechanical indicator, lockable front test button and light indicator. This relay is designed to be mounted on female plug-in connectors with WT characteristics as standard. The modernization covered the design of the relay and the manufacturing process. The contacts are made from AgNi and has 4 changeover contacts. It is used for general control of electrical equipment, industrial control systems, equipment for air conditioning, refrigeration products, heating, ventilation, lighting, protection, monitoring and alarm equipment. The control systems/devices for household equipment, electrical automation systems, industrial/power-engineering automation, building automation equipment and other.