Tomzn TZG40-C AC 4-Pole 3-Phase SPD is a high-performance surge protector designed to safeguard three- phase electrical systems from voltage spikes, power surges, and lightning strikes. With a 40kA discharge capacity, fast response time, and built-in thermal protection, it ensures reliable performance for residential, commercial, and industrial applications. Easy to install on DIN rails, it provides efficient and long-lasting surge protection for your electrical setup