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 80A CLASS J HS FUSE HSJ80
The Fuse HSJ80 delivers rapid, reliable circuit protection for demanding industrial environments, with a high interrupting rating for both AC (600VAC) and DC (500VDC) systems. Its high-speed operation ensures effective safeguarding of sensitive equipment against damaging overcurrents.
£77.52
Why Choose the Mersen HSJ80 High Speed Class J Fuse?
The Mersen HSJ80 is a high-performance Class J high speed semiconductor fuse engineered to provide dependable branch circuit protection alongside rapid protection for sensitive power semiconductor devices. As part of the proven Mersen Amp-Trap® HSJ Series, it combines the low let-through energy (I²t) of a semiconductor fuse with the branch circuit performance of a UL Listed Class J fuse, making it ideal for demanding industrial automation, motor control and power conversion applications.
Designed for high-performance industrial environments, the HSJ80 rapidly interrupts fault currents to minimise damage to diodes, SCRs, GTOs, IGBTs and solid state relays. Its blade terminal construction enables secure installation into compatible Class J fuse holders while providing excellent interrupting performance and reliable semiconductor protection.
With a rated current of 80 A, voltage ratings of 600 V AC and 500 V DC, and a high interrupting capacity, the Mersen HSJ80 is ideally suited for variable frequency drives, soft starters, industrial control panels and power conversion equipment requiring ultra-fast overcurrent protection.
Key Advantages
- High speed Class J semiconductor protection fuse.
- 80 A current rating for industrial power applications.
- 600 V AC and 500 V DC voltage ratings.
- Combines branch circuit protection with low I²t semiconductor protection.
- Protects diodes, SCRs, GTOs, IGBTs and solid state relays.
- Heavy-duty blade terminal construction for secure installation.
Key Features
- Mersen Amp-Trap® HSJ Series.
- 80 A rated current.
- 600 V AC / 500 V DC rated voltage.
- 50 / 60 Hz operation.
- Low I²t design for semiconductor protection.
- UL Listed Class J branch circuit protection.
- 200 kA AC / 100 kA DC interrupting rating.
- Blade terminals for clip-mounted fuse holders.
Reliable Protection for Industrial Power Electronics
The Mersen HSJ80 is specifically engineered to interrupt fault currents before excessive thermal energy can damage sensitive semiconductor devices. Its fast acting characteristic helps reduce thermal and electrical stress on expensive electronic components, improving system reliability while reducing maintenance costs and production downtime.
By combining branch circuit compliance with advanced semiconductor protection, the HSJ80 simplifies electrical panel design while providing dependable protection for modern industrial automation, motor control and power conversion systems.
Typical Applications
- Variable frequency drives (VFDs).
- Soft starters.
- Industrial motor controllers.
- Power converters and rectifiers.
- Solid state relays.
- Industrial automation and control panels.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 80 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Item number | HSJ80 | |
| Description | Fuse HSJ - Class J - High-Speed 600VAC 500VDC 80A Blade Amp-Trap® | |
| EAN/UPC Code | 782001329570 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 500 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 80 A | |
| AC or DC | AC/DC | |
| Fuse Class | Class J | |
| Speed/Characteristic | High Speed | |
| Mounting | Clip | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Blade | |
| Product Diameter | 27 mm | |
| Product Length | 117.6 mm | |
| Sell Pack Quantity | 5 EA | |
| Sell Pack Weight | 0.5625 kg | |
| Sell Pack Width | 136.7 mm | |
| Sell Pack Length | 152.4 mm | |
| Sell Pack Height | 26.9 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.1075 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen HSJ80 used for?
The HSJ80 provides high speed overcurrent protection for semiconductor devices while also meeting Class J branch circuit protection requirements.
What is the current rating of the HSJ80?
The fuse has a 80 A current rating.
What voltage is the HSJ80 rated for?
The fuse is rated for 600 V AC and 500 V DC.
Which equipment can this fuse protect?
It is commonly used to protect variable frequency drives, SCRs, IGBTs, diodes, soft starters, solid state relays and other semiconductor power devices.
Is the HSJ80 suitable for industrial automation?
Yes. It is widely used in industrial automation, motor control, power conversion and machine building applications requiring rapid semiconductor protection.
Trusted for Industrial Circuit Protection
Mersen Amp-Trap® HSJ Series fuses are trusted by engineers worldwide for delivering rapid fault interruption, dependable semiconductor protection and reliable branch circuit performance in demanding industrial electrical systems.
