Schneider Electric Harmony Control Series Monitoring Relay, 99mm Length, DIN Rail Mount - RMNF22TB30 This monitoring relay enhances capabilities within electrical systems specifically for three-phase applications, providing essential oversight and control over frequency, voltage, and phase conditions. Its advanced functionalities contribute to maintaining system stability and performance. Features & Benefits • Monitors phase sequence and failure to ensure operational integrity
• Detects overvoltage and undervoltage for circuit protection
• Includes adjustable time delays for accurate operational control
• Comprehensive frequency monitoring helps prevent system issues
• User-friendly installation on DIN rail maximises space efficiency Applications • Utilised in automation systems for monitoring three-phase power supply
• Suitable for industrial machinery needing voltage stability
• Implemented in electrical panels for real-time safety monitoring
• Effective in HVAC systems to ensure optimal performance
• Used in generators for phase failure detection What types of mobile devices are compatible with the relay? The relay works with NFC-enabled mobile devices running Android operating systems version V4.4 and above for optimal functionality. How do I configure the time delay settings? Time delay settings can be adjusted from a minimum of 0.1 seconds to a maximum of 3600 seconds, allowing customisation based on application needs. What are the environmental limits for operation? It operates within ambient temperatures ranging from -20°C to +60°C, ensuring functionality across various industrial environments. Can the relay handle different voltages? Yes, it supports a supply voltage range of 208 to 480V AC line to line and 120 to 277V AC line to neutral, making it versatile for multiple applications. How does the relay indicate a fault? The device uses LED indicators to signal specific alarm conditions, such as phase failure, undervoltage, overvoltage, and frequency deviations, facilitating quick diagnosis.