Technical Specifications: Article: Fusible Amper 175 A. Voltage rating CA - 600 V CA. DC Voltage Classification - Not Class T. JJS Series. Visual indication Not indicative. Speed: Fast performance. Body type: Screw. Adapts to the fuse block style No rejection Interruption rating 200 kA at 600 V CA. Fuse size 3-1 / 4 long x 7/8 in diameter Brand and equivalent series: Bussmann JJS, Littelfuse JLLS, Mersen A6T equivalent series - A6T, JJS, JLLS series of compatible fuse blocks - 1BS, T600, T601, T602, T604, T606 Material Body Melamina Single Element. Standards - CE / UL-248-15 Guide JDDZ / CSA Class 1422-02 The UL Class T fuses of quick action and without indication are opened to the few seconds of being exposed to overloads and short circuits. Also called fast-acting Class T fuses, are very sensitive to changes in current flow and do not tolerate temporary overload currents or surges of tension. They do not have an indicator to identify a burnt fuse, so they are sometimes used with a block or fuse indicator cover. UL Class T fuses are very small fuses that require a minimum installation space to protect electric feeders and overcurrent circuits. These fuses have a 200 kA (IR) interruption rating and are not interchangeable with any other kind of UL fuse. They limit the current to prevent electrical damage by disconnecting the circuits before they are exposed to the magnitude and total duration of an overcurrent.