ABB TEF4-ON ABB ID: 1SBN020112R1000 🔧 Description (English): The ABB TEF4-ON is a high-quality component designed for seamless integration in industrial control systems. It provides reliable performance and supports enhanced functionality in ABB assemblies. 📌 Technical Features: Type: Accessory / Control Component Compatibility: ABB Control Devices Function: Enhances system integration and control Application: Industrial automation and protection circuits Installation: Snap-on / Panel Mount