The Ericsson Surge Protection Device ZGZD4-26-48K3 is a high-quality product manufactured by Zhongguang. Designed specifically for Ericsson equipment, this surge protection device provides reliable protection against power surges and voltage spikes, ensuring the safety and proper functioning of your electrical systems. With its advanced technology and durable construction, the Ericsson Surge Protection Device is a valuable investment for businesses and industrial facilities looking to safeguard their equipment and minimize downtime. new with no box.