Uhlobo lwefuse yochungechunge lwe-HR17Bisixhumingokusebenza komthwalo, ofanelekileyo kwi-40A yangoku elinganisiweyo ~ 1600A, kukho iqela eli-1, amaqela ama-2, amaqela ama-3, amaqela ama-4 amanqaku. Ingafakelwa kwi-busbar, ingafakelwa kwipleyiti esisigxina; ibonelela ngesakhiwo sokufaka kunye nesiphumo esiphezulu nesisezantsi, kunye nesixhobo sokungenisa esinomphetho wemela kunye nesixhobo sokulawula i-arc; kwaye isigqubuthelo seswitshi sinemingxuma yokubona evaliweyo engavumelekanga, iswitshi yesignali eyakhelwe ngaphakathi, iswitshi yokubona. Inokuba sisixhobo sokujonga ifuse esinganyanzelekanga, singasetyenziswa njengeswitshi yemela. Iswitshi enobume obuhle, entsha kunye nobubanzi, ihlangabezana nemigangatho ye-IEC60947-3, GB14048.3.