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 120 VAC. Mechanical position indicator yes, LED display yes. 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.