The Littelfuse SE-330AU-28-00 is a dual SC fiber NGR Monitor designed for 48VDC applications, providing essential monitoring capabilities for electrical systems. This model features a robust RJ45 interface and complies with IEC 61850 standards, ensuring compatibility with modern setups. Its compact design allows for easy installation, while the durable construction ensures reliability in various environments. Ideal for monitoring neutral grounding resistors, this device enhances system safety and efficiency, making it a critical component in electrical infrastructure.