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MERSEN FUSE 600V 175A CLASS J HS FUSE HSJ175
The Fuse HSJ175 delivers reliable circuit protection with its high-speed operation, minimising equipment downtime in demanding industrial environments. Its 600VAC and 500VDC ratings, coupled with a robust 175A capacity, provide excellent compatibility for modern control systems and power distribution panels.
£162.97
Why Choose the Mersen HSJ175 High-Speed Class J Fuse?
The Mersen HSJ175 is a 175 A High-Speed Class J fuse engineered to provide both branch-circuit protection and rapid semiconductor protection in demanding industrial applications. Part of the Mersen Amp-Trap® HSJ series, it combines the low I²t characteristics of a semiconductor fuse with the UL Listed performance of a Class J branch-circuit fuse, making it ideal for protecting modern power-electronic equipment.
Designed for industrial automation and power conversion systems, the HSJ175 delivers rapid fault interruption while withstanding the elevated inrush currents associated with electronic motor controllers and variable frequency drives. Its current-limiting design helps minimise thermal stress, reducing equipment damage and improving system reliability.
Rated at 175 A, 600 V AC / 500 V DC, the HSJ175 is suitable for protecting drives, soft starters, UPS systems, rectifiers, inverters, SCRs, diodes and other semiconductor-based equipment.
Key Advantages
- High-speed Class J fuse for branch-circuit and semiconductor protection.
- 175 A rated current for industrial power applications.
- 600 V AC / 500 V DC rated voltage.
- Very low I²t limits thermal energy during fault conditions.
- Excellent cycling capability for repeated motor starts and stops.
- 200 kA AC interrupting rating for high fault-current applications.
Key Features
- Mersen Amp-Trap® HSJ series.
- 175 A current rating.
- 600 V AC / 500 V DC voltage rating.
- High-speed semiconductor protection.
- Class J blade fuse construction.
- Current-limiting operation with low let-through energy.
- Optimised overload capability for electronic motor-controller starting.
- Suitable for compatible Class J fuse holders.
High-Speed Protection for Modern Industrial Power Systems
The Mersen HSJ175 is designed to protect both branch circuits and sensitive semiconductor devices using a single UL Listed Class J fuse. Its low I²t characteristic enables rapid fault clearing before excessive thermal energy can damage SCRs, GTOs, IGBTs, diodes, solid-state relays and other power semiconductors.
Its optimised overload capability also allows it to withstand the temporary inrush currents encountered during electronic motor-controller starting while maintaining excellent current-limiting performance during severe fault conditions.
Typical Applications
- Variable frequency drives (VFDs).
- Electronic motor controllers.
- Soft starters.
- Power converters and rectifiers.
- UPS systems.
- Industrial control panels.
- Solid-state relays.
- Phase controllers.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 175 A | |
|---|---|---|
| Voltage | 600 V | |
| Fuse Type | UL class | |
| Item number | HSJ175 | |
| Description | Fuse HSJ - Class J - High-Speed 600VAC 500VDC 175A Blade Amp-Trap® | |
| EAN/UPC Code | 782001329648 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage DC UL | 500 V | |
| Frequency (Hz) | 50/60 Hz | |
| Ampere Rating | 175 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 | 41.3 mm | |
| Product Length | 146 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.3583 kg | |
| Sell Pack Width | 42.9 mm | |
| Sell Pack Length | 42.9 mm | |
| Sell Pack Height | 152.4 mm | |
| Product group | Low Voltage UL/CSA Fuses | |
| Body/Insulating Material | GMG | |
| Product Weight | 0.3411 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Mexico |
Frequently Asked Questions
What is the Mersen HSJ175 used for?
The HSJ175 protects industrial branch circuits together with sensitive semiconductor devices including SCRs, diodes, GTOs, solid-state relays and power converters.
What is the current rating of the HSJ175?
The Mersen HSJ175 has a rated current of 175 A.
What voltage is the HSJ175 rated for?
The fuse is rated for 600 V AC and 500 V DC applications.
What interrupting rating does the HSJ175 provide?
The HSJ175 offers a 200 kA AC interrupting rating and a 100 kA DC interrupting rating when installed correctly.
Where is the HSJ175 commonly installed?
It is commonly installed in variable speed drives, electronic motor controllers, UPS systems, phase controllers, power converters and industrial control panels using compatible Class J fuse holders.
Trusted High-Speed Circuit Protection
Mersen Amp-Trap® HSJ fuses are trusted worldwide by OEMs, panel builders and industrial engineers for delivering dependable branch-circuit protection together with outstanding semiconductor protection in modern power electronic systems.
