Mersen

Mersen AJT400 400A 600V Class J Time-Delay Fuse

Name: Mersen AJT400 400A 600V Class J Time-Delay Fuse
Brand: Mersen
SKU: AJT400

Part Number: AJT400

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The AJT Series includes AJT400, rated at 400A. The datasheet specifies 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.

Rated Current400A

Rated Voltage600V AC / 500V DC

Breaking Capacity200kA AC / 100kA DC

PackageClass J

Tags

AJT Series AJT400 Class J Mersen time-delay

The Mersen AJT400 combines a 400A rating with the protection characteristics of the AJT Series. Selection data centers on a 600V AC / 500V DC voltage rating and 200kA AC / 100kA DC interrupting rating. 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: AJT400
Manufacturer Part Number: AJT400
Series: AJT Series
Fuse Type: Current-Limiting Time-Delay Class J Fuse
Current Rating: 400A
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