根据EN IEC 61643-11标准测试和认证为1 + 2型保护器。适用于ITC-BT-23规定的I、II、III、IV类。为方便布线,采用双接线(仅限于63a)。紧凑多极保护。含有氧化锌压敏电阻和气体放电管,能够承受非常大的电流。配合ATSHOCK、ATSUB、ATCOVER系列保护器。响应时间短。不产生爆燃。它们的激活不会导致电源中断。热力控制装置。遥控器无电压触点。 ATSHIELD series protectors have been tested in official and independent laboratories, obtaining their characteristics according to relevant standards. Certificated tests according to EN IEC 61643-11. Complies with requirements of UL 1449. Relevant standards: NF C 17102, UNE 21186, EN IEC 62305. Products compliant with EC requirements.