JLLS1000 is a Littelfuse Class T fuse rated 1000A for 600 V AC / 300 V DC. It uses Fast-Acting operation with 200 kA AC / 20 kA DC interrupting capability, suited to variable speed drives.
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Within the Littelfuse product family, Littelfuse JLLS1000 provides a 1000A rating with 600 V AC / 300 V DC in the JLLS family. The Current-Limiting Class T Fuse format uses Fuse holder / cartridge mounting and Ferrule or blade terminals by ampere rating terminals, with 200 kA AC / 20 kA DC fault-interruption data. Package detail: Industrial Class T cartridge; 133.9 mm overall length; Class T blade body (900–1200 A). Typical applications include Variable speed drives; inverters; rectifiers; UPS; power distribution units; meter stacks. Published standards/approvals reference UL 248-15, Class T. Compact fast-acting Class T construction; current-limiting performance for high short-circuit protection. Verify coordination, derating and final suitability against the current Littelfuse datasheet before design-in.
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700A · 600VAC / 300VDC
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