Cooper Bussmann BP/FRS-R-30 Cartridge Fuse Time-delay  10 second (minimum) at 500% of rated current Dimensions: 0.81 x 5 Ce, UL listed, std. 248-12, class Rk5, guide jddz, file E4273, csa certified, C22.2 no. 248.12, class 1422-02, file 53787, CE Dual-element feature provides the best time-delay performance, allowing closer sizing and superior protection of motors and Transformers Quantity per card: 1