Why Choose the Mersen AJT1-1/4N Class J Time-Delay Fuse?
The Mersen AJT1-1/4N is a high-performance Class J time-delay fuse designed to provide dependable overcurrent protection for industrial electrical systems. As part of the renowned Amp-Trap 2000® AJT series, this fuse offers excellent current-limiting performance while accommodating temporary motor starting and transformer inrush currents without unnecessary fuse operation.
Engineered for demanding industrial environments, the AJT1-1/4N helps protect electrical equipment against overloads and short circuits, reducing downtime and improving system reliability. Its compact Class J design requires significantly less panel space than many conventional fuse types while delivering superior circuit protection.
Rated at 1.25 A with a 600 V AC / 500 V DC voltage rating, the AJT1-1/4N is ideally suited for industrial control panels, branch circuits, motor protection and transformer applications. The non-indicating version provides reliable protection where visual fuse indication is not required.
Key Advantages
- Compact Class J time-delay fuse for industrial branch circuit protection.
- 1.25 A current rating for low-current industrial applications.
- 600 V AC / 500 V DC voltage rating for demanding electrical installations.
- Time-delay characteristics reduce nuisance operation during equipment start-up.
- Excellent current-limiting performance helps minimise damage during fault conditions.
- Compact footprint allows efficient use of control panel space.
Key Features
- Mersen Amp-Trap 2000® AJT series.
- 1.25 A current rating.
- 600 V AC / 500 V DC rated voltage.
- Class J time-delay fuse.
- Ferrule mounting design.
- Non-indicating (N) construction.
- High current-limiting capability.
- Suitable for motor, transformer and branch circuit protection.
Reliable Protection for Industrial Electrical Systems
The Mersen AJT series is specifically designed to provide dependable overload and short circuit protection while tolerating the temporary inrush currents commonly associated with motors, transformers and other inductive equipment. Its advanced current-limiting design helps reduce thermal and mechanical stress on downstream components during fault conditions.
Trusted by electrical engineers, OEMs and panel builders worldwide, the AJT1-1/4N delivers consistent performance in industrial control panels, machinery and electrical distribution systems where safety and reliability are essential.
Typical Applications
- Industrial control panels.
- Motor branch circuit protection.
- Transformer protection.
- HVAC systems.
- OEM machinery and automation equipment.
- Electrical distribution and switchboards.
