A4BY1400 - 1400Amp Fuse Description
A4BY1400 - 1400Amp Fuse
The A4BY1400 fuse is built to handle heavy-duty electrical systems without compromise. Rated at 1400 amps, this time-delay Class L fuse protects your service entrance panels, feeder circuits, and large breakers from overloads and short circuits—while letting normal startup surges pass through without tripping. Unlike standard fuses, the time-delay design gives motors, transformers, and other equipment a few extra seconds to start up, so you avoid unnecessary shutdowns. At the same time, it stays ready to interrupt serious faults, keeping your system safe under high-stress conditions. Installation is straightforward thanks to its bolted mounting and blade-style terminals made from silver-plated copper. The GMG insulated body provides long-lasting performance, even in demanding industrial environments.
Key Features and Benefits
- High-capacity protection: Rated for 1400A to keep circuits safe.
- Time-delay design: Allows temporary surges without unnecessary trips.
- AC/DC compatible: Works with 600VAC and 300VDC systems.
- High fault handling: Interrupting rating of 200 kA.
- Durable connections: Blade terminals with silver-plated copper.
- Built to last: GMG insulated body withstands heavy-duty use.
Technical Specifications
- Fuse Class: Class L
- Ampere Rating: 1400A
- Voltage Rating: 600VAC / 300VDC
- Frequency: 50/60 Hz
- Mounting: Bolted
- Terminal Type: Blade
- Interrupting Rating: 200 kA AC
- Dimensions: 273 mm length × 76.2 mm diameter
- Product Weight: 2.7 kg
Material Compliance and Certifications
- UL listed for low-voltage applications
- Silver-plated copper terminals for reliable conductivity
- GMG insulating material for safe and consistent performance
Where It Works Best
- The A4BY1400 is perfect for industrial and commercial settings where heavy startup loads and high fault currents are common. It’s well-suited for service entrances, feeder circuits, and large distribution panels, helping keep operations running smoothly with minimal downtime.
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Specifications
- Width:2.375
- Depth:2.375
- Height:10.75
- Amperes:1400
- 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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