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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | Mersen / Ferraz Shawmut |
| Manufacturer Product Number | A4BY400 |
| Description | Industrial Fuse; 400 A; Class L; Time-Delay; 2 in; 600 V AC, 300 V DC |
| Datasheet | Download Datasheet |
The Mersen / Ferraz Shawmut A4BY400 is a 400 A UL Class L fuse, rated 600 V AC, 300 V DC.
Class L is the UL class for large 600 V bolt-in current-limiting fuses, used on service entrances, switchboards and large feeders.
Interrupting rating: 200 kA AC, 100 kA DC.
Construction: 2 in (51 mm) x 8-5/8 in (219 mm) diameter x length; bolt-in blade, 1 slotted mounting hole per blade.
| Category | |
| Manufacturer | Mersen / Ferraz Shawmut |
| Model | A4BY |
| Current Rating (A) | 400 A |
| Size | 2 in (51 mm) x 8-5/8 in (219 mm) (dia. x length) |
| Speed | Time-Delay |
| UL Class | Class L |
| Voltage Rating | 600 V AC, 300 V DC |
| Breaking Capacity | 200 kA AC, 100 kA DC |
| Body Material | Glass melamine |
| Terminal Type | Bolt-in blade, 1 slotted mounting hole per blade |
| Blown Fuse Indicator | No |
| Dimensions | Length 8-5/8 in (219 mm); Diameter 2 in (51 mm); Blade Thickness 5/16 in (8 mm); Blade Width 1-5/8 in (41 mm); Blade Length 2-13/32 in (61 mm) |
| Time Delay | 4 s minimum at 500% of rated current |
| Recommended Fuse Block | P48F |