Surge protection. Measuring, controlling, regulating. Sensitive signal inputs can be damaged or destroyed due to possible coupling of surges along wiring paths. It is important to protect MSR devices in their immediate vicinity. Weidmüller offers a comprehensive product range for the MSR sector, including two-part, pluggable designs or terminal block formats with connection types such as spring-loaded and screw. These products are tailored for both binary and analog signals. Additionally, Weidmüller provides designs with integrated components such as gas arresters or varistors. VARITECTOR stands for versatile and variable surge protection from Weidmüller, which is tested according to the product standard IEC61643-21. The Varitector series can be used in applications according to IEC 61643-22 / VDE 0845-3 in classes C1, C2, C3, and D1. In the product families VARITECTOR SPC and SSC as well as MCZ OVP, the electrical and mechanical properties are optimally combined. The size and ease of handling play a crucial role. The surge protection is suitable for installation in tight spaces in process, industrial, and building automation.