For engineering selection, Mersen A25X800-4 is a 250–300VAC high-speed semiconductor fuse; this configuration is rated 800A and 250–300VAC, intended for heavy-duty rectifiers and semiconductor converters and built around bolted blade mounting.
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Mersen positions A25X800-4 in the A25X family for heavy-duty rectifiers and semiconductor converters, using a 250–300VAC high-speed semiconductor fuse format. Rated at 800A and 250–300VAC, this version uses bolted blade mounting and is characterized by low-I²t current-limiting semiconductor protection. For replacement or new builds, compare the mounting details with the linked manufacturer documentation.
HP15FHM32B
32A · 1500VDC
HP15FHM32A
32A · 1500VDC
USCC4I
30A · 600VAC / 600VDC
USCC4
30A · 600VAC / 600VDC
USCC3N
30A · 600VAC / 600VDC
USCC3IN
30A · 600VAC / 600VDC
USCC3I
30A · 600VAC / 600VDC
USCC3
30A · 600VAC / 600VDC