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Mersen

Mersen AJT100EI 100A 600V Class J Time-Delay Fuse

Part Number: AJT100EI

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AJT100EI extends the Mersen AJT Series lineup with a 100A rating. Its key ratings are 600V AC / 500V DC and 200kA AC / 100kA DC interrupting capability. This makes it suitable where high current limitation with time-delay performance for motor and transformer inrush. This catalog code identifies the EI visual/open-fuse indication configuration.

Rated Current100A
Rated Voltage600V AC / 500V DC
Breaking Capacity200kA AC / 100kA DC
PackageClass J

At 100A, AJT100EI is one of the rated options available in Mersen’s AJT Series. Electrical limits are 600V AC / 500V DC, with 200kA AC / 100kA DC interrupting capability. The protection profile emphasizes high current limitation with time-delay performance for motor and transformer inrush. The Class J format uses ferrule / blade (amp-dependent) terminals with cartridge/clip mounting. Typical selection contexts include Feeders, Branch Circuits, Transformers. This SKU is the EI visual/open-fuse indication configuration. Use the official Mersen datasheet to confirm final coordination and dimensions.

Technical Specifications

Part Number
AJT100EI
Manufacturer Part Number
AJT100EI
Series
AJT Series
Fuse Type
Current-Limiting Time-Delay Class J Fuse
Current Rating
100A
Voltage Rating
600V AC / 500V DC
AC / DC
AC/DC
Breaking Capacity
200kA AC / 100kA DC
Package / Dimensions
Class J
Mounting
Cartridge / Clip
Application
Branch Circuit Protection · Control panels · Feeder circuits · Motor Circuits · Switchboard Mains · Transformers
Standard
CSA C22.2 No. 248.8 · IEC 60269-1/-2 · UL 248-8
Terminal Type
Ferrule / Blade (amp-dependent)
Fuse Speed
Time Delay
Utilization Class
Class J
Approvals
CSA · UL Listed
Certifications
UL Listed · CSA

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