Ferraz Shawmut A6Y400 - Class K Fuse 400A (200kA@600V Interrupting Capacity)

Ferraz Shawmut A6Y400 is a Class K low-voltage current-limiting fuse designed for high-interrupting capacity circuit protection in industrial power distribution systems. Rated for 600V AC applications with a 400A current rating, this single-barrel fuse features a compact 2-inch diameter design and provides 200kA interrupting capacity at rated voltage. Its current-limiting construction rapidly clears faults while protecting downstream equipment, complying with UL/CSA standards for Class K fuses. Typical applications include motor control centers, switchgear, and transformer protection where high fault currents are present.

Key Features & Specifications

• Type: Class K current-limiting fuse, single barrel construction
• Voltage Rating: 600V AC
• Current Rating: 400A
• Dimensions: 2" diameter
• Standards: UL/CSA Class K compliant
• Applications: Industrial power distribution, MCCs, switchgear
• AIC rating: 200kA@600V
• Class Rating: K
• Weight: 5 lb