LH-BO (18 laula) series surge protector (ma hope aku i kapa ʻia ʻo SPD) he kūpono ia no IT, TT, TN a me nā ʻōnaehana lako mana ʻē aʻe o nā ʻōnaehana hāʻawi AC haʻahaʻa haʻahaʻa no ka pale ʻana i ka uila ʻole, ka uila pololei a i ʻole nā hoʻonui overvoltage koke.
ʻO ka lua a me ke kolu o ka pae ʻana i nā mea pale a me nā papa hoʻāʻo hoʻāʻo ʻana o ka papa II e pili ana i ka maʻamau IEC61643-1. Loaʻa iā SPD nā ʻano pale maʻamau (MC) a me ke ʻano ʻokoʻa (MD).
Hoʻopili nā huahana i nā kūlana e like me GB/T 18802.11 a me IEC61643-1.