Mersen A4BY2500 Class L Time-Delay Fuse – 2500A – 600VAC/300VDC – Amp-Trap® Blade Fuse
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The Mersen A4BY2500 is an ultra-high capacity Amp-Trap® Class L time-delay fuse engineered for large-scale industrial, commercial, and utility power distribution systems. Rated at 2500 Amps, this current-limiting fuse provides reliable protection against overloads and short circuits while accommodating motor starting currents and transformer inrush conditions. With voltage ratings of 600VAC and 300VDC, it is designed for main service entrances, large feeder circuits, switchgear assemblies, and high-capacity electrical infrastructure where maximum system protection and coordination are required.
Voltage and Rating
- Current Rating: 2500 Amps
- Voltage Rating: 600VAC / 300VDC
- Frequency: 50/60 Hz
- Fuse Class: Class L
- Fuse Type: Time-Delay, Current-Limiting
Key Specifications
- Product Type: Industrial Power Fuse
- Series: Amp-Trap® A4BY
- Part Number: A4BY2500
- Manufacturer: Mersen / Ferraz Shawmut
- Mounting Style: Blade
- Time-Delay Capability: Yes (motor and transformer inrush tolerant)
- Current Limiting: Yes
Technical Specifications
- Protection Type: Overcurrent and short-circuit protection
- Application Suitability: Service entrances, large feeders, transformers, switchboards, and industrial power distribution systems
- Coordination Type: Supports selective coordination with downstream protective devices
- Construction Features: Very high interrupting capacity, low let-through energy, rugged industrial-grade construction
- System Integration: Designed for commercial, industrial, and utility-scale electrical systems
Standards and Approvals
- UL Listed
- CSA Certified
- Compliant with Class L fuse protection requirements
Product Data
- Manufacturer: Mersen / Ferraz Shawmut
- Series: Amp-Trap®
- Part Number: A4BY2500
- EAN/UPC: 782001939250
Applications
- Industrial and utility power distribution systems
- Main service entrance protection
- Large feeder circuit protection
- Transformer protection systems
- Switchboards and switchgear assemblies
- Motor control centers
- Critical infrastructure facilities
- Heavy manufacturing and process industries
- High fault current environments
- Energy generation and distribution systems
- Type Fuses
- Vendor Mersen
- Brand Mersen
Returns are easy
You may return items within 30 days of delivery for a refund.
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