UL CLASS G MEDIUM TIME DELAY 500A The unique design of LittelfuseÆs compact SLC series Class G fuses provide additional time-delay over competitive products which increases system reliability Compact Class G fuses were the first fuse series to approach midget fuse dimensions and meet NEC requirements for branch-circuit protection The unique dimensions of SLC series Class G fuses prevents insertion of lower voltage fuses in Class G fuse holders The fuseÆs varying length prevents insertion of higher ampere rated fuses in fuse holders designed for lower ampere ratings Class CC fuses are replacing Class G fuses in many new designs Class CC fusesÆ superior time delay plus higher voltage and interrupting ratings meet the needs of modern circuits LittelfuseÆs introduction of POWR-PRO« CCMR series fuses, with ratings up to 60 Amperes for providing branch circuit protection, are accelerating this trend Safety: 100,000 AIR ù Reliable interruption of all overcurrents up to 100,000 amperes Current limiting design reduces damage to equipment caused by heating and magnetic effects of short circuit currents Medium time-delay allows fuses to be sized closer to actual equipment requirements ù no need to greatly oversize to withstand harmless equipment or system surges Reduced Downtime: Medium time-delay may reduce downtime caused by power surges or equipment demands