Harmony Relay. Miniature relay RXM as a component. Number of contacts 4, relay changeover design, contact load capacity 3 A each, contact coating gold-plated, application low-level contacts. Coil control voltage 24 VDC. Mechanical position indicator yes, LED display no. Test button for testing the contacts yes, test lever for permanent switching for test purposes yes, operation without tools. Installation in a separate plug-in base.