The Cooper Bussmann mdl series 1-1/2 amp silver electronic fuses are intended to help provide close sizing on inductive circuits. The time-delay fuses are CSA- and UL listed and feature a 1/4 inch x 1-1/4 inch glass tube with nickel-plated-brass end caps. 1/4 diameter tube1-1/4 inch length tubeTime delayCSA- and UL listedUse for close sizing on inductive circuits