These NT fuse-bases from Bolevo conform to IEC60269, DIN43620, CE Safety as well as ROHS norms. They handle a rated voltage of AC500V/690V or DC 440V over current ratings from 2A-1250A, except the size 00 which is for DC 250V.
Depending on the application, they belong to operating class gL/gG for cable and conductor protection, whereas for motor protection it is aM, and aR for semiconductor protection. They boast finely graded selectivity with a breaker capacity of AC 120kA, except for size 00 with breaking rated at AC 50kA.