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Mersen AJT400
Fuse 600V 400A Time-Delay Class J AJT Series Smart-Spot
Product Description
The AJT series fuses operate at a rated voltage of 600V AC and 500V DC, making them suitable for diverse applications. With an ampere rating of 400A, these fuses are designed to handle typical motor and transformer inrush currents effectively. The advanced material technology utilized in the AJT fuse enables IEC Type 2 No Damage protection for main, feeder, and branch circuits.
These fuses require only half the mounting space compared to conventional 600VAC Class RK fuses, thanks to their compact design. The time-delay characteristic enhances their performance in managing transient inrush currents while maintaining superior current-limiting capabilities. A SmartSpot visual open fuse indicator is integrated for easy monitoring.
In terms of dimensions, the product measures 7.13 inches in length and has a diameter of 2.12 inches, weighing 2 pounds. The connection terminals are made of brass, and the body is constructed from GMG insulating material. This fuse is also ROHS compliant, ensuring adherence to environmental standards.
Offer details
- Best offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees- Availability:
- 0 pcs.On RequestUpdated at: 05-09-2026
- Warranty:
- 12 months
- Condition:
- New Factory Sealed
Specifications
- Brand
- Mersen
- Rated voltage AC UL
- 600 V
- Rated voltage DC UL
- 500 V
- Frequency
- 50/60 Hz
- Ampere Rating
- 400 A
- ROHS Compliant
- Yes
- Fuse Class
- Class J
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Documents
Data Sheet
Datasheet for Mersen AJT400, including specifications and features.
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3D CAD model and technical drawings, ready for your design software.
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