HR17B mndandanda fuse-mtundu cholumikizira ndi ntchito katundu, oyenera oveteredwa panopa 40A ~ 1600A, pali 1 gulu, 2 magulu, 3 magulu, 4 magulu mfundo. Ikhoza kuikidwa pa basir, ikhoza kuikidwanso mu mbale yokhazikika; imapereka cholowera chapamwamba ndi chotsika komanso chotulutsa, chokhala ndi mawu oyambira m'mphepete mwa mpeni ndi chipangizo chowongolera arc; ndipo chivundikiro cha switchch chimakhala ndi mabowo odziwikiratu osatsekeka, masinthidwe omangika mkati, switch yozindikira. itha kukhala fuse monitor yosankha, itha kugwiritsidwanso ntchito ngati chosinthira mpeni. Kusinthana ndi mawonekedwe okongola, buku ndi kufupikitsa, kumakumana ndi IEC60947-3, GB14048.3 miyezo.