Mersen lists AJT450 in the AJT Series as a 450A circuit-protection device. 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 Branch Circuits, Transformers, Control Panels. Use the official Mersen datasheet to confirm final coordination and dimensions.
Technical Specifications
- Part Number
- AJT450
- Manufacturer Part Number
- AJT450
- Series
- AJT Series
- Fuse Type
- Current-Limiting Time-Delay Class J Fuse
- Current Rating
- 450A
- 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