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MERSEN FUSE 600V 4.5A J TD NON-IND AJT4-1/2N
Why Choose the MERSEN FUSE 600V 4.5A J TD NON-IND AJT4-1/2N?
£14.96
Why Choose the Mersen AJT4-1/2N Class J Time-Delay Fuse?
The Mersen AJT4-1/2N is a premium Class J time-delay fuse engineered to provide dependable overcurrent protection for industrial electrical systems. Part of the trusted Mersen Amp-Trap 2000® AJT series, it combines exceptional current-limiting performance with time-delay characteristics, making it ideal for protecting motors, transformers, control panels and branch circuits where temporary inrush currents are common.
Designed using advanced fuse technology, the AJT4-1/2N helps minimise equipment damage during fault conditions while reducing nuisance fuse operations. Its compact Class J footprint requires significantly less installation space than comparable Class RK fuses, making it an excellent solution for industrial control panels and OEM machinery where panel space is at a premium.
With a 4.5 A current rating and a 600 V AC / 500 V DC rating, the AJT4-1/2N is ideal for industrial control circuits, motor branch circuits, transformer protection and feeder applications. The ferrule construction enables straightforward installation into compatible Class J fuse holders and disconnect switches.
Key Advantages
- Compact Class J time-delay fuse for industrial circuit protection.
- 4.5 A current rating suitable for precision electrical protection.
- 600 V AC / 500 V DC voltage rating.
- Time-delay characteristics reduce nuisance operation caused by motor and transformer inrush currents.
- Excellent current-limiting performance helps protect valuable electrical equipment.
- Compact footprint saves valuable control panel space.
Key Features
- Mersen Amp-Trap 2000® AJT series.
- 4.5 A ampere rating.
- 600 V AC / 500 V DC rated voltage.
- Class J time-delay fuse construction.
- Ferrule mounting design.
- 200 kA AC interrupting rating.
- Non-indicating fuse design.
- Suitable for IEC Type 2 No Damage protection.
Reliable Protection for Industrial Electrical Systems
The Mersen AJT4-1/2N delivers dependable protection against overloads and short circuits while accommodating temporary inrush currents generated by motors and transformers. Its advanced current-limiting technology reduces thermal and mechanical stress on connected equipment, helping improve reliability and reduce maintenance costs.
Its compact Class J construction makes it ideal for OEM machinery, industrial control panels, automation equipment and power distribution systems where reliable overcurrent protection and efficient use of installation space are essential.
Typical Applications
- Industrial control panels.
- Motor branch circuit protection.
- Transformer protection.
- OEM machinery and automation systems.
- Power distribution equipment.
- General industrial electrical installations.
Technical Specifications
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| Fuse Indication | None | |
|---|---|---|
| Current | 4.5 A | |
| Voltage | 600 V | |
| Device Type | Fuse link | |
| Fuse Type | UL class | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Series | Amp-Trap 2000® AJT | |
| Model | AJT4-1/2N | |
| Product type | Class J time-delay fuse | |
| Current rating | 4.5 A | |
| Voltage rating | 600 V AC / 500 V DC | |
| Frequency | 50 / 60 Hz | |
| Fuse class | Class J | |
| Construction | Ferrule | |
| Time characteristic | Time-delay | |
| Interrupting rating | 200 kA AC | |
| Indication | Non-indicating | |
| HS Code | 85361010 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen AJT4-1/2N used for?
The AJT4-1/2N protects industrial electrical circuits, motors, transformers and branch circuits against overloads and short circuits.
What is the current rating of the AJT4-1/2N?
The fuse has a 4.5 A current rating.
What voltage is the AJT4-1/2N rated for?
The fuse operates at up to 600 V AC and 500 V DC.
Why use a time-delay fuse?
Time-delay fuses tolerate temporary motor starting and transformer energisation currents while still providing excellent protection against sustained overloads and fault currents.
Where is the AJT4-1/2N typically installed?
It is commonly installed in industrial control panels, disconnect switches, machinery and power distribution equipment using compatible Class J fuse holders.
Trusted for Industrial Circuit Protection
Mersen Amp-Trap 2000® AJT Class J fuses are trusted by electrical engineers, panel builders and OEM manufacturers worldwide for their outstanding current-limiting performance, dependable protection and compact installation footprint.
