The Mersen A25X400-4TI product is a 250–300VAC high-speed semiconductor fuse, carrying 400A with a 250–300VAC system rating, intended for heavy-duty rectifiers and semiconductor converters and built around bolted blade mounting.
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Designed around heavy-duty rectifiers and semiconductor converters, A25X400-4TI combines the A25X platform with 250–300VAC high-speed semiconductor fuse characteristics. 400A and 250–300VAC define the primary electrical envelope, while low-I²t current-limiting semiconductor protection and bolted blade describe protection and fit. For replacement or new builds, compare the mounting details with the linked manufacturer documentation.
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