Mersen HSJ70 Fuse – Class J – 70A – 600VAC/500VDC – High-Speed Blade Fuse (Amp-Trap® HSJ)

The Mersen HSJ70 is a Class J high-speed fuse designed for ultra-fast protection of sensitive semiconductor and power electronic systems. Rated at 70 Amps, this Amp-Trap® HSJ fuse provides rapid fault interruption to protect critical components such as diodes, IGBTs, and other solid-state devices from damage caused by short-circuit and overcurrent conditions. With voltage ratings of 600VAC and 500VDC, it is ideal for demanding industrial and power conversion applications requiring precise and current-limiting protection.

Voltage and Rating

• Current Rating: 70 Amps
• Voltage Rating: 600VAC / 500VDC
• Frequency: 50/60 Hz
• Fuse Class: Class J
• Fuse Type: High-Speed (Ultra Rapid)

Key Specifications

• Product Type: High-Speed Semiconductor Protection Fuse
• Series: Amp-Trap® HSJ
• Part Number: HSJ70
• Manufacturer: Mersen
• Mounting Style: Blade
• Response Type: Ultra-fast acting for semiconductor protection
• Current Limiting: Yes

Technical Specifications

• Protection Type: Semiconductor and electronic device protection
• Application Suitability: Inverters, rectifiers, UPS systems, VFDs, and power converters
• Coordination Type: Designed for protection of sensitive solid-state components
• Construction Features: Very fast clearing time, high interrupting capacity, and low let-through energy
• System Integration: Suitable for AC and DC power electronic systems

Standards and Approvals

• UL Listed
• CSA Certified
• IEC semiconductor fuse standards compliant (typical for HSJ series)

Product Data

• Manufacturer: Mersen
• Series: Amp-Trap® HSJ
• Part Number: HSJ70
• EAN/UPC: 782001329563

Applications

• Semiconductor protection systems
• Variable frequency drives (VFDs)
• Rectifiers and inverters
• UPS and backup power systems
• DC power distribution systems
• Industrial automation electronics
• Renewable energy systems (solar and wind converters)

Returns are easy

You may return items within 30 days of delivery for a refund.

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