5SD7424-0 SIEMENS

The 5SD7424-0 from SIEMENS is a surge arrester designed to protect electrical systems from transient overvoltages. It is classified as a Type 2 surge arrester, also known as a Class C arrester, suitable for installation in secondary distribution panels. This surge arrester is designed for TN-S and TT systems, providing comprehensive protection against surges for these common grounding configurations. With a UC (continuous operating voltage) of 350V, it can handle the voltage fluctuations typically found in these systems. The 5SD7424-0 features a 4-pole configuration in a 3+1 circuit, meaning it protects three phases and the neutral conductor. Its pluggable protective modules allow for easy replacement in case of failure, minimizing downtime. The narrow design of the arrester makes it suitable for installations where space is limited. This surge arrester effectively diverts surge currents to ground, preventing damage to sensitive electronic equipment and ensuring the reliable operation of electrical installations. By mitigating the impact of surges, the 5SD7424-0 enhances the safety and longevity of electrical systems.