Mersen A4Bq Amp-Trap 2000 Time-Delay/Class L Fuse, 600Vac/500Vdc, 200Ka Ac/100Ka Dc, 2500 Ampere, 4-

A4BQ fuses are 20% more current limiting than any other Class L fuse on the market. When correctly coordinated, they bring a superior level of protection to service entrance equipment. Downstream circuit components have maximum protection against short circuit let thru current. A4BQ’s built in, 4 second time delay characteristic (at 500% of rated current) accommodates harmless inrush currents with no nuisance opening