Monster Fuses > Mersen > BOLT IN Mersen - Bolt-In Series 5.5kV - R-Rated -"218A" Design 100 - 230A 390 - 630A 5.5kV - R-Rated -"55A" Design 100 - 230A 390 - 450A 5.5kV - R-Rated -"Vacuum" Design 425 - 800A 5.08kV - R-Rated - "Allen Bradley" Design 70 - 230A 390 - 700 750 - 900 7.2kV - R-Rated - "Allen Bradley" Design 70 - 300A 390 - 600A 750 - 900A 15.5kV - R-Rated - "Allen Bradley" Design 200 - 700A 5.5kV - E-Rated - "Allen Bradley" Design 10 - 200E 250 - 600E 750 - 900E 1200E 15.5kV - E-Rated - "Allen Bradley" Design 200 - 300E