Mersen
A4BY1500 - 1500Amp Fuse
A4BY1500 - 1500Amp Fuse
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A4BY1500 - 1500Amp Fuse
The Mersen A4BY1500 Amp-Trap® Class L Time-Delay Fuse is designed to keep your electrical systems safe and running smoothly. Perfect for commercial and industrial use, it handles high currents while allowing normal surges to pass without unnecessary trips. Its 4-second delay at 500% of its rating ensures it coordinates with ground fault relays and other protective devices. Built with silver-plated copper blade terminals and a durable insulating body, this fuse is made to last. And because it’s fully rated, it can operate continuously at 1500A without worry.
Key Features and Benefits
- 1500A capacity for heavy-duty industrial and commercial systems
- Time-delay design prevents trips during temporary surges
- AC/DC compatible: 600VAC and 300VDC
- 200 kA interrupting rating for high fault-clearing capability
- 100% rated for continuous operation
- Secure blade-style connection for reliable installation
- Silver-plated copper terminals resist corrosion
- Coordinates with ground fault relays and downstream devices
Technical Specifications
- Catalog Number: A4BY1500
- Series: A4BY – Class L – Time-Delay
- Product Type: Amp-Trap® Fuse
- Ampere Rating: 1500A
- Voltage Rating AC: 600VAC
- Voltage Rating DC: 300VDC
- Frequency: 50/60 Hz
- Fuse Class: Class L
- Fuse Characteristic: Time Delay
- Interrupting Rating: 200 kA AC
- Connection Type: Blade
- Mounting Type: Bolted
- Terminal Material: Silver-Plated Copper
- Insulating Material: GMG
- Product Length: 273 mm
- Product Diameter: 76.2 mm
- Product Weight: 2.7079 kg
- UPC: 782001939199
Material Compliance and Certifications
- This fuse meets UL and CSA standards for low-voltage systems.
Where It Works Best
- Service entrance panels in industrial and commercial buildings
- Power distribution and feeder circuits
- Switchboards and switchgear
- Large motors, HVAC systems, and equipment with startup surges
- Manufacturing and processing facilities
- Data centers and critical infrastructure
- Heavy-duty circuit breaker protection
- With the Mersen A4BY1500, you get consistent protection that keeps your electrical systems safe and operating smoothly—day in and day out.
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