The Lauritz Knudsen HQ Size B4 400A HRC Fuse is a heavy-duty bolted fuse link designed for reliable protection of high-current industrial power distribution circuits. With a rated current of 400A, this fuse ensures effective protection against overloads and short-circuit faults, safeguarding feeders, switch-fuse units, and connected equipment in demanding electrical installations.This HQ-type bolted fuse features a centre-tag fixing with 4 mounting holes, providing excellent mechanical strength, secure electrical contact, and stable performance under high thermal and fault stress conditions. It is specifically suitable for FN 400 S-D-F switch-fuse units, making it ideal for LT panels, MCCs, PCC panels, and industrial distribution boards.Manufactured in compliance with IEC 60269-2 and IS 13703 Part 2, the HQ fuse series offers a high breaking capacity of up to 80kA, ensuring safe fault interruption and enhanced system reliability. This fuse is widely used in industrial power distribution systems, large feeders, and critical electrical infrastructure where dependable high-current protection is essential.Meta Summary: Buy Lauritz Knudsen HQ Size B4 400A HRC Fuse online from Maheshwari Distributors – Genuine bolted fuse protection with fast pan-India delivery.
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