Mersen A4BQ3000 Class L Time-Delay Fuse – 3000A – 600VAC/500VDC – Amp-Trap 2000® Blade Fuse

The Mersen A4BQ3000 is an ultra-high capacity Amp-Trap 2000® Class L time-delay fuse designed for the most demanding industrial and utility-scale power distribution systems. Rated at 3000 Amps, this fuse provides controlled time-delay performance to withstand high motor starting currents and transformer inrush while delivering extremely fast current-limiting protection under short-circuit conditions. With voltage ratings of 600VAC and 500VDC, it is intended for main service entrances, large industrial feeders, and high-energy electrical distribution networks requiring maximum protection reliability.

Voltage and Rating

• Current Rating: 3000 Amps
• Voltage Rating: 600VAC / 500VDC
• Frequency: 50/60 Hz
• Fuse Class: Class L
• Fuse Type: Time-Delay, Current-Limiting

Key Specifications

• Product Type: Industrial Power Fuse
• Series: Amp-Trap 2000® A4BQ
• Part Number: A4BQ3000
• Manufacturer: Mersen / Ferraz Shawmut
• Mounting Style: Blade
• Time-Delay Capability: Yes (supports motor and transformer inrush currents)
• Current Limiting: Yes

Technical Specifications

• Protection Type: Overcurrent and short-circuit protection
• Application Suitability: Main electrical service, ultra-large feeders, transformers, and industrial switchgear
• Coordination Type: Selective coordination in high fault current systems
• Construction Features: Very high interrupting capacity, low let-through energy, robust industrial-grade design
• System Integration: Designed for utility-scale and heavy industrial power systems

Standards and Approvals

• UL Listed
• CSA Certified
• Compliant with Class L high-capacity fuse protection standards

Product Data

• Manufacturer: Mersen / Ferraz Shawmut
• Series: Amp-Trap 2000®
• Part Number: A4BQ3000
• EAN/UPC: 782001930141

Applications

• Utility and industrial main service protection
• Large-scale power distribution systems
• High-capacity transformer protection
• Heavy industrial feeder circuits
• Switchgear and switchboard protection
• Critical infrastructure electrical systems
• High fault current environments
• Data centers and large facilities power systems
• Energy and manufacturing plants

Returns are easy

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

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