RT18 Fuse Fusible Link Wire Application These fuse holders are supporters for fuses with size up to 22*58mm,They are capable of working under hear cased by rated current and expected short impacting current up to 100kA. It can also function as a fuse disconnecting switch by multi-phase combination. There are two in/out lines at the RT18N fuse base,providing a power cut function. The RT-18L type has a safety lock to lock the fuse carrier when disconnected to avoid wrong operation;it can also be equipped with an indicator,which goes on when the fuse links breaks. Rated insulate voltage up to 690V;Working frequency 50Hz AC;Conventional free air thermal current up to 125A; Compliant with GB13539.1, GB13539, GB13539.6, GB14048.3 and IEC60269-1, IEC60269-2, IEC60269-2-1, IEC947-3.Technical Parameter Model NameRT18 fuse holderStandardIEC60269 GB13539Rated current In(A)0.5~125AmpRated voltage Un(V)250V 380V 500V 600V 660VFrequency of coil50HzTypesaR aMFeatures ●After the plastic-injected case is equipped with contacts and fuse links, the bases are forms by welding or riveting both capable of being multi-phase structured.●RT19 are open-structure, and others are semi-concealed structure.●There are five fuse sizes available to choose from for the same fuse base of RT18N,RT18B, RT18C.●There are two sets of in-out lines for RT-18N.One is installed with fuse links of the according size.The other is a permanent open contacts with double breaking points. The whole base unit can cut the power.●RT18 bases are all DIN rail installed, among which the RT18L in equipped with safety lock against wrong operation in the breaking state.Applicable Working Ambient temperature-5~+40℃, the average value cannot exceed to +35℃ within 24hAltitude≤2,000mRelative humidity≤95%Pollution levelII.Installation locationMount on the place where has no obvious vibration or impact