JTD400ID is Littelfuse’s 400A selection in the JTD_ID Series. Its rating set pairs 600V AC / 500V DC service with 200kA AC interrupting performance. Indicator® technology gives visual blown-fuse identification, while the dual-element design accommodates high in-rush loads. Package and mounting details are included below; verify final use against the official datasheet.
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For 400A service, JTD400ID is a listed member of the Littelfuse JTD_ID Series. Littelfuse specifies 600V AC / 500V DC; the listed breaking capability is 200kA AC. Indicator® technology gives visual blown-fuse identification, while the dual-element design accommodates high in-rush loads. Mechanical selection uses a Class J format with Cartridge / Clip installation and ferrule / blade (amp-dependent) termination. Published dimensions are 181.0mm overall length; 50.8mm body diameter. Typical applications include Motor, Transformer, Motor Control Center, General Purpose. Check the official Littelfuse datasheet before final coordination.
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