Nā hiʻohiʻona hoʻolālā
Ma hope o ka hoʻolako ʻia ʻana o ka pahu plastic-Injected me nā pilina a me nā loulou fuse, ua hoʻokumu ʻia nā kumu e ka welding a i ʻole riveting i nā mea ʻelua i hiki ke hoʻonohonoho multiphase. ʻO RT19 he hale hāmama, a ʻo nā mea ʻē aʻe he hale semi-huna. ʻElima nui fuse i loaʻa e koho mai no ka waihona fuse like o RT18N, RT18B, a me RT18C. ʻElua pūʻulu o nā laina i waho no RT18N. Hoʻokomo ʻia kekahi me nā loulou fuse e like me ka nui. ʻO ka mea ʻē aʻe he mau pilina wehe mau me nā helu haʻihaʻi pālua. Hiki i ka waihona kumu holoʻokoʻa ke ʻoki i ka mana. Hoʻokomo ʻia nā kumu RT18 a pau i ke kaʻaahi DIN, kahi i hoʻolako ʻia ai ka RT18L me ka laka palekana e kūʻē i ka hana hewa i ka mokuʻāina.