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Littelfuse

Littelfuse TLN400 400A 170V DC Fast-Acting Telecom Fuse

Part Number: TLN400

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A TLN telecom power fuse rated 400A at 170V DC, TLN400 offers 100kA fault-interruption capability.

Rated Current400A
Rated Voltage170V DC
Breaking Capacity100kA @ 170VDC
PackageTelecom Power Fuse

For telecom DC distribution, Littelfuse TLN400 carries a 400A continuous rating at 170V DC and a 100kA interrupting rating. The TLN design is fast-acting and current-limiting, with form factors aligned to common 250V Class R dimensions across the ampere range. Refer to Littelfuse documentation for exact coordination and installation limits. For cross-reference work, compare its voltage rating before the application category, and verify the approval status against the Littelfuse technical sheet.

Technical Specifications

Part Number
TLN400
Manufacturer Part Number
TLN400
Series
TLN Series
Fuse Type
Telecom DC Current-Limiting Fuse
Current Rating
400A
Voltage Rating
170V DC
AC / DC
DC
Breaking Capacity
100kA @ 170VDC
Package / Dimensions
Telecom Power Fuse
Mounting
Cartridge / Clip · Fuse Block · Fuse Holder
Application
Data Center · DC distribution · Telecom DC distribution
Standard
UL Recognition
Terminal Type
Ferrule / Blade by ampere range
Fuse Speed
Fast Acting (F)
Utilization Class
Telecommunications
Approvals
UL Recognized
Certifications
UL Recognized

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