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Mersen

Mersen AJT225 225A 600V Class J Time-Delay Fuse

Part Number: AJT225

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For 225A circuit protection, AJT225 is a catalog member of Mersen’s AJT Series. Published electrical limits are 600V AC / 500V DC with 200kA AC / 100kA DC short-circuit capability. This makes it suitable where high current limitation with time-delay performance for motor and transformer inrush.

Rated Current225A
Rated Voltage600V AC / 500V DC
Breaking Capacity200kA AC / 100kA DC
PackageClass J

Part AJT225 belongs to the Mersen AJT Series and is rated 225A. Its electrical envelope is 600V AC / 500V DC, supported by 200kA AC / 100kA DC interrupting data. 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. Use the official Mersen datasheet to confirm final coordination and dimensions.

Technical Specifications

Part Number
AJT225
Manufacturer Part Number
AJT225
Series
AJT Series
Fuse Type
Current-Limiting Time-Delay Class J Fuse
Current Rating
225A
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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