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MERSEN FUSE 600V 225A CLASS J HS FUSE HSJ225
The HSJ225 fuse delivers exceptional high-speed protection for sensitive power electronic equipment, operating reliably at up to 600VAC and 500VDC with a 225A rating. Its compact Class J blade design ensures easy installation and superior performance in demanding industrial environments.
£329.18
Why Choose the Mersen HSJ225 High-Speed Class J Fuse?
The Mersen HSJ225 is a 225 A High-Speed Class J fuse engineered to provide both branch-circuit protection and rapid semiconductor protection in demanding industrial applications. As part of the Mersen Amp-Trap® HSJ series, it combines the low I²t performance of a semiconductor fuse with the branch-circuit capabilities of a UL Listed Class J fuse, making it ideal for protecting modern power-electronic equipment.
Designed for industrial automation and power conversion systems, the HSJ225 delivers rapid fault interruption while withstanding elevated inrush currents associated with electronic motor controllers and variable frequency drives. Its current-limiting design helps minimise thermal stress and reduce damage to valuable electrical equipment.
Rated at 225 A, 600 V AC and 500 V DC, the HSJ225 is suitable for protecting drives, soft starters, UPS systems, rectifiers, inverters, SCRs, diodes, GTOs and other semiconductor-based equipment.
Key Advantages
- Provides both Class J branch-circuit and semiconductor protection.
- 225 A rated current for demanding industrial power applications.
- 600 V AC / 500 V DC voltage ratings.
- Low I²t characteristics reduce thermal stress on power semiconductors.
- Excellent cycling capability for frequent equipment starts and stops.
- 200 kA AC interrupting rating for high fault-current installations.
Key Features
- Mersen Amp-Trap® HSJ series.
- 225 A current rating.
- 600 V AC and 500 V DC rated.
- High-speed Class J operating characteristic.
- Current-limiting design.
- Blade terminal construction.
- Optimised overload capability for electronic motor-controller starts.
- Suitable for approved Class J fuse holders and fuse blocks.
High-Speed Protection for Industrial Power Electronics
The Mersen HSJ225 combines the branch-circuit protection required by electrical codes with the very low let-through energy needed to protect sensitive semiconductor devices. It rapidly clears short-circuit faults before excessive electrical and thermal energy can damage SCRs, GTOs, IGBTs, diodes and solid-state relays.
Its optimised overload capability enables reliable operation during the elevated currents experienced during electronic motor-controller starting while maintaining outstanding current-limiting performance during fault conditions.
Typical Applications
- Variable frequency drives (VFDs).
- Electronic motor controllers.
- Soft starters.
- Industrial rectifiers and inverters.
- Power converters.
- UPS systems.
- Industrial control panels.
- Solid-state relay protection.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 225 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Item number | HSJ225 | |
| Description | Fuse HSJ - Class J - High-Speed 600VAC 500VDC 225A Blade Amp-Trap® | |
| EAN/UPC Code | 782001329662 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 500 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 225 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 | Brass | |
| Connection/Terminal Type | Blade | |
| Product Diameter | 54 mm | |
| Product Length | 181.1 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.8528 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 | 0.8119 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen HSJ225 used for?
The HSJ225 provides branch-circuit protection while protecting sensitive semiconductor devices such as SCRs, diodes, GTOs and solid-state relays.
What is the current rating of the HSJ225?
The Mersen HSJ225 has a nominal current rating of 225 A.
What voltage is the HSJ225 rated for?
The HSJ225 is rated for applications operating at up to 600 V AC and 500 V DC.
What interrupting rating does the HSJ225 provide?
The fuse offers a 200 kA AC interrupting rating and a 100 kA DC interrupting rating when installed in accordance with manufacturer recommendations.
Which fuse holder is recommended?
The HSJ225 should be installed in a compatible Class J fuse holder or fuse block designed for 201–400 A Class J fuses.
Trusted High-Speed Circuit Protection
Mersen Amp-Trap® HSJ fuses are trusted by OEMs, panel builders and industrial engineers worldwide for providing dependable branch-circuit protection together with outstanding semiconductor protection in modern industrial power systems.
