RT18 series fuse in line with GB13539, IEC60269, VDE0636 standards! Suitable for AC 50/60Hz, rated voltage AC 690V, rated current up to 125A of power distribution lines for overload and short circuit protection (transformer protection gtr \ motor protection aM / gM) . RT18-32: fuse size φ10 × 38, current up to 32A; RT18-63: fuse size φ14 × 51, current up to 63A; RT18-125: fuse size φ22 × 58, current up to 125A. Can replace Siemens 3NW and other similar products. For details, visit our website: www.hurofuse.com