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.
£140.94
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.
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.
| Current | 80 A |
|---|---|
| Voltage | 600 V |
| 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 |
The HSJ80 provides high speed overcurrent protection for semiconductor devices while also meeting Class J branch circuit protection requirements.
The fuse has a 80 A current rating.
The fuse is rated for 600 V AC and 500 V DC.
It is commonly used to protect variable frequency drives, SCRs, IGBTs, diodes, soft starters, solid state relays and other semiconductor power devices.
Yes. It is widely used in industrial automation, motor control, power conversion and machine building applications requiring rapid semiconductor 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.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...