A4BY3500 - 3500Amp Fuse Description
A4BY3500 - 3500Amp Fuse
When it comes to protecting high-current electrical systems, the Mersen A4BY3500 Amp-Trap® Class L Time-Delay Fuse is built to handle the toughest jobs. Rated at 3500 amps, this heavy-duty fuse is ideal for service entrance equipment, feeder circuits, and large circuit breakers. Its smart time-delay design allows harmless surges—like motor starts or temporary spikes—to pass without tripping, but reacts instantly to real faults. That means your equipment stays protected, downtime is minimized, and you can focus on keeping operations running smoothly.
Installation is straightforward with silver-plated copper blade terminals, and the strong glass melamine (GMG) body keeps its shape under continuous heavy loads. With a 200kA AC interrupting rating, the A4BY3500 provides dependable, high-capacity protection for even the most demanding industrial and commercial applications. Clear markings make maintenance and replacement simple, giving electricians and engineers one less thing to worry about.
Key Features and Benefits
- Time-delay design lets harmless surges pass without trips
- 3500A rating for high-current service entrances and feeders
- Rated for 600VAC / 300VDC applications
- 200kA AC interrupting capacity for reliable fault clearing
- Silver-plated copper blade terminals for secure connections
- Durable GMG (glass melamine) body for long-lasting stability
- Continuous-duty operation at full amp rating
- Clear markings simplify maintenance and identification
- Bolt-mounted installation for a secure fit
Technical Specifications
- Catalog Number: A4BY3500
- Series: A4BY – Class L – Time-Delay
- Fuse Class: Class L
- Ampere Rating: 3500A
- Voltage Rating: 600VAC / 300VDC
- Frequency: 50/60 Hz
- Speed/Characteristic: Time-Delay
- Mounting: Bolted
- Connection Type: Blade
- Connection Material: Silver-Plated Copper
- AC Max Interrupting Rating: 200kA
- Body Material: GMG (Glass Melamine)
- Product Diameter: 146 mm
- Product Length: 273 mm
- Product Weight: 11.4305 kg
Material Compliance and Certifications
- RoHS Compliant
- Designed for low-voltage UL/CSA applications
- Meets industry standards for industrial and commercial circuit protection
Where It Works Best
- The A4BY3500 is perfect for high-current environments where protection and surge tolerance are critical:
- Service entrance panels
- Feeder circuits and distribution systems
- Industrial machinery protection
- Commercial power systems
- Critical circuit breakers in essential infrastructure
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Specifications
- Width:4.75
- Depth:4.75
- Height:10.75
- Amperes:3500
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:A4BY
- Additional Notes:Knife-Blade Style, Non-Indicating, Time-Delay, current-limiting Class L Fuse
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