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Littelfuse

Littelfuse NLS400 400A 600V Class K5 One-Time Fuse

Part Number: NLS400

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NLS400 pairs a 400A rating with 600V AC / 500V DC operation in Littelfuse’s NLS Series, for applications including general purpose, feeder circuits and branch circuit protection.

Rated Current400A
Rated Voltage600V AC / 500V DC
Breaking Capacity200kA AC
PackageClass K5

Rated 400A at 600V AC / 500V DC, Littelfuse NLS400 is a Class K5 one-time fuse in the NLS Series. Electrical protection is backed by a 200kA AC breaking capacity, with cartridge / clip mounting in the Class K5 format. For general purpose, feeder circuits and branch circuit protection, confirm final circuit suitability using the datasheet, UL 248-9 and applicable UL Listed and CSA marks.

Technical Specifications

Part Number
NLS400
Manufacturer Part Number
NLS400
Series
NLS Series
Fuse Type
Class K5 One-Time Fuse
Current Rating
400A
Voltage Rating
600V AC / 500V DC
AC / DC
AC/DC
Breaking Capacity
200kA AC
Package / Dimensions
Class K5
Mounting
Cartridge / Clip
Application
Branch Circuit Protection · Feeder circuits · General purpose protection
Standard
UL 248-9
Terminal Type
Blade
Fuse Speed
One-Time
Utilization Class
Class K5
Approvals
CSA · UL Listed
Certifications
UL Listed · CSA
DC Voltage Rating
500V DC
DC Interrupting Rating
20kA
Fuse Class
Class K5

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