The HSJ6 Amp-Trap® fuse delivers precision high-speed protection for sensitive power circuits up to 600VAC and 500VDC, supporting applications that demand rapid response to overcurrents. Its Class J design and 6A rating ensure reliable performance and compliance with stringent safety standards.
£42.05
The Mersen HSJ6 is a premium Class J high speed semiconductor fuse designed to provide both branch circuit protection and exceptionally fast protection for sensitive semiconductor devices. As part of the trusted 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 industrial automation, motor control and power electronic applications.
Designed for demanding industrial environments, the HSJ6 rapidly interrupts fault currents to minimise damage to valuable components including diodes, SCRs, GTOs, IGBTs and solid state relays. Its compact ferrule construction enables straightforward installation into compatible Class J fuse holders while providing dependable protection and excellent interrupting performance.
With a rated current of 6 A, 600 V AC and 500 V DC ratings, the Mersen HSJ6 is ideally suited for variable frequency drives, soft starters, industrial control panels and power conversion equipment requiring fast acting overcurrent protection.
The Mersen HSJ6 is engineered to minimise the effects of short circuits and severe overcurrent events in semiconductor-based equipment. Its fast acting characteristic helps reduce thermal and electrical stress on expensive electronic components, improving equipment reliability while reducing maintenance costs.
By combining branch circuit compliance with semiconductor protection, the HSJ6 simplifies electrical panel design while providing dependable protection for modern industrial automation, motor control and power conversion systems.
| Current | 6 A |
|---|---|
| Voltage | 600 V |
| Item number | HSJ6 |
| Description | Fuse HSJ - Class J - High-Speed 600VAC 500VDC 6A Ferrule Amp-Trap® |
| EAN/UPC Code | 782001372484 |
| Rated voltage AC UL | 600 V |
| Rated voltage DC UL | 500 V |
| Frequency (Hz) | 50/60 Hz |
| Ampere Rating | 6 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 | 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 | 0.4218 kg |
| Sell Pack Width | 60.5 mm |
| Sell Pack Length | 111.3 mm |
| Sell Pack Height | 42.9 mm |
| Product group | Low Voltage UL/CSA Fuses |
| Body/Insulating Material | GMG |
| Product Weight | 0.0404 kg |
| HS Code | 85361010 |
| Country of Manufacture | Mexico |
The HSJ6 provides high speed overcurrent protection for semiconductor devices while also meeting Class J branch circuit protection requirements.
The fuse has a 6 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 worldwide for delivering fast 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...