Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE 600V 35A CLASS J FUSE A4J35
Fast-acting Class J blade fuse rated for 600VAC and 300VDC at 350A, providing high breaking capacity and reliable circuit protection in industrial applications.
£29.57
Why Choose the Mersen A4J35 Amp-Trap Fuse?
The Mersen A4J35 is a premium Class J fast-acting current-limiting fuse designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical systems. As part of the proven Mersen Amp-Trap A4J series, it delivers exceptional current-limiting performance while helping minimise equipment damage and system downtime.
Designed for demanding industrial applications, the A4J35 rapidly interrupts fault currents before they reach damaging levels, reducing thermal and mechanical stress on downstream electrical equipment. Its unique Class J rejection dimensions prevent substitution with lower-rated fuse classes, helping maintain system safety and compliance.
With a rated current of 35 A, a 600 V AC rating and a 300 V DC rating, the Mersen A4J35 is ideal for protecting feeders, branch circuits, panelboards, switchboards and general industrial loads requiring fast-acting overcurrent protection.
Key Advantages
- Fast-acting Class J fuse for industrial circuit protection.
- 35 A current rating for branch circuits and electrical equipment.
- 600 V AC and 300 V DC voltage ratings.
- Current-limiting design reduces damaging fault energy.
- 200 kA AC interrupting capacity for demanding industrial installations.
- Class J rejection dimensions prevent incorrect fuse replacement.
Key Features
- Mersen Amp-Trap A4J series.
- 35 A rated current.
- 600 V AC voltage rating.
- 300 V DC voltage rating.
- Fast-acting current-limiting protection.
- Ferrule terminal construction.
- Fibreglass body provides excellent dimensional stability.
- Compatible with Class J fuse holders.
Reliable Protection for Industrial Electrical Systems
Current-limiting fuses such as the Mersen A4J35 interrupt fault currents in milliseconds, significantly reducing peak let-through current and thermal energy. This protects downstream electrical equipment from damage while helping improve system reliability and reduce maintenance costs.
The Amp-Trap A4J series is widely specified for industrial control panels, switchboards, feeder circuits, load centres and electrical distribution systems where dependable protection and high interrupting capacity are essential.
Typical Applications
- Industrial control panels.
- Panelboards and switchboards.
- Load centres.
- Feeder and branch circuit protection.
- Lighting and heating circuits.
- General industrial machinery.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 35 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Fuse Class | Fast acting | |
| Item number | A4J350 | |
| Description | Fuse A4J - Class J - Fast-Acting 600VAC 300VDC 350A Blade Amp-Trap® | |
| EAN/UPC Code | 782001960438 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 300 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 350 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 | Brass Alloy | |
| Connection/Terminal Type | Blade | |
| Product Diameter | 54 mm | |
| Product Length | 181.1 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.8346 kg | |
| Sell Pack Width | 53.8 mm | |
| Sell Pack Length | 53.8 mm | |
| Sell Pack Height | 184.1 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.7938 kg | |
| HS Code | 85361050 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen A4J35 used for?
The Mersen A4J35 provides fast-acting overcurrent and short-circuit protection for industrial power distribution systems, feeders, branch circuits and electrical equipment.
What is the current rating of the A4J35?
The fuse has a 35 A current rating.
What voltage is the Mersen A4J35 rated for?
The A4J35 is rated for operation at up to 600 V AC and 300 V DC.
Is the A4J35 a fast-acting fuse?
Yes. The A4J35 is a fast-acting Class J current-limiting fuse designed to interrupt overloads and short-circuit faults rapidly.
Where is the A4J35 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.
