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MERSEN FUSE 600V 6A CLASS J FUSE A4J6
Fast-acting Class J fuse with 6A rating, suitable for 600VAC and 300VDC applications, featuring Amp-Trap® technology and ferrule terminals for reliable circuit protection.
£17.15
Why Choose the Mersen A4J6 Amp-Trap Fuse?
The Mersen A4J6 is a premium Class J fast-acting current-limiting fuse engineered to provide reliable protection against overloads and short circuits in industrial and commercial electrical systems. As part of the trusted Mersen Amp-Trap A4J series, it delivers rapid fault interruption and exceptional current-limiting performance for branch circuits, control panels and sensitive electrical equipment.
Designed for demanding industrial applications, the A4J6 limits peak fault current and let-through energy, helping to protect downstream equipment from excessive thermal and mechanical stress. Its unique Class J dimensions prevent substitution with lower-rated fuse classes, improving electrical safety and ensuring code compliance.
With a rated current of 6 A, a 600 V AC rating and a 300 V DC rating, the Mersen A4J6 is ideal for protecting industrial control circuits, panelboards, switchboards, lighting circuits and general-purpose electrical loads requiring dependable fast-acting protection.
Key Advantages
- Fast-acting Class J fuse for industrial circuit protection.
- 6 A current rating for low-current industrial circuits.
- 600 V AC and 300 V DC voltage ratings.
- High current-limiting design reduces damaging fault energy.
- 200 kA AC interrupting rating and 100 kA DC interrupting rating.
- Class J dimensions prevent incorrect fuse replacement.
Key Features
- Mersen Amp-Trap A4J series.
- 6 A rated current.
- 600 V AC voltage rating.
- 300 V DC voltage rating.
- Fast-acting current-limiting protection.
- Ferrule terminal construction.
- Fibreglass body for excellent dimensional stability.
- Compatible with Class J fuse holders.
Reliable Protection for Industrial Electrical Systems
The Mersen A4J6 interrupts fault currents within milliseconds, reducing peak current and total let-through energy before damaging levels can be reached. This helps protect sensitive electrical equipment, conductors and control systems while improving system reliability and reducing maintenance costs.
The Amp-Trap A4J series is widely specified for industrial control panels, panelboards, switchboards, bus duct systems, feeder circuits and general-purpose electrical loads where dependable current limitation and high interrupting capacity are essential.
Typical Applications
- Industrial control panels.
- Panelboards and switchboards.
- Feeder and branch circuit protection.
- Load centres.
- Lighting and heating circuits.
- General industrial machinery.
Technical Specifications
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| Current | 6 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Fast acting | |
| Item number | A4J6 | |
| Description | Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 6A Ferrule Amp-Trap® | |
| EAN/UPC Code | 782001960094 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 300 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 6 A | |
| AC or DC | AC/DC | |
| Fuse Class | Class J | |
| Speed/Characteristic | Fast-Acting | |
| Mounting | Clip | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Connection/Terminal Material | Tin-Plated Copper | |
| Connection/Terminal Type | Ferrule | |
| Product Diameter | 20.7 mm | |
| Product Length | 57.2 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 0.4627 kg | |
| Sell Pack Width | 60.5 mm | |
| Sell Pack Length | 108 mm | |
| Sell Pack Height | 42.9 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | PolyTube | |
| Product Weight | 0.044 kg | |
| HS Code | 85361010 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen A4J6 used for?
The Mersen A4J6 provides fast-acting overcurrent and short-circuit protection for industrial control circuits, feeders, branch circuits and electrical equipment.
What is the current rating of the A4J6?
The fuse has a 6 A current rating.
What voltage is the Mersen A4J6 rated for?
The A4J6 is rated for operation at up to 600 V AC and 300 V DC.
Is the A4J6 a fast-acting fuse?
Yes. The A4J6 is a fast-acting Class J current-limiting fuse designed to interrupt overloads and short-circuit faults rapidly.
Where is the A4J6 typically installed?
It is commonly installed in Class J fuse holders within industrial control panels, switchboards, load centres and power distribution equipment.
Trusted by Electrical Professionals Worldwide
Mersen Amp-Trap Class J fuses are trusted by electrical engineers, OEMs and maintenance professionals for dependable circuit protection, exceptional current limitation and reliable performance in demanding industrial applications.
