The Fuse HSJ1 offers rapid, reliable circuit protection for sensitive power electronic equipment, performing at up to 600VAC and 500VDC while maintaining precise 1A current limiting. Its high-speed operation minimises equipment damage during short circuits, ensuring safety and operational continuity.
£42.05
The Mersen HSJ1 is a compact single-pole Class J fuse holder designed to provide secure mounting and dependable electrical connection for compatible industrial fuse-links. It is suitable for control panels, machinery and power-distribution equipment where reliable overcurrent protection and efficient use of panel space are essential.
Designed for professional electrical installations, the HSJ1 supports the safe integration and convenient replacement of Class J fuses. Its touch-safe construction helps reduce accidental contact with live components, while the DIN-rail mounting format simplifies installation within modern industrial enclosures and control cabinets.
With a 600 V AC/DC voltage rating and a single-pole modular configuration, the Mersen HSJ1 is suitable for branch-circuit and equipment-protection applications. The holder must be fitted with a compatible Class J fuse whose current rating and operating characteristics meet the requirements of the protected circuit.
Fuse holders provide the mechanical support and electrical connections required for a fuse to operate correctly. The Mersen HSJ1 keeps the installed Class J fuse securely positioned while allowing authorised personnel to replace the fuse during maintenance.
Class J fuses are commonly selected for industrial branch circuits because of their current-limiting performance and rejection-style dimensions. The fuse fitted to the HSJ1 must be selected according to the system voltage, load current, available fault current and protection requirements of the connected equipment.
| Current | 1 A |
|---|---|
| Voltage | 600 V |
| Item number | HSJ1 |
| Description | Fuse HSJ - Class J - High-Speed 600VAC 500VDC 1A Ferrule Amp-Trap® |
| EAN/UPC Code | 782001372460 |
| Rated voltage AC UL | 600 V |
| Rated voltage DC UL | 500 V |
| Frequency (Hz) | 50/60 Hz |
| Ampere Rating | 1 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 Mersen HSJ1 is used to mount and electrically connect a compatible Class J fuse within an industrial control panel or power-distribution assembly.
The HSJ1 is a single-pole fuse holder. Multiple holders can be installed together when additional protected poles are required.
The holder is designed for electrical systems rated up to 600 V AC/DC, subject to correct installation and fuse selection.
No. A compatible Class J fuse must be ordered separately and selected according to the electrical requirements of the protected circuit.
It is typically mounted on a DIN rail inside an electrical control panel, switchboard or industrial equipment enclosure.
Mersen fuse holders and circuit-protection products are used by panel builders, equipment manufacturers and electrical engineers to create reliable, maintainable and space-efficient industrial protection 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...