Mersen A2Y400-3 - Class K Time-Delay Fuse 400A (200kA AIC @250V)

Mersen A2Y400-3 is a low voltage current-limiting fuse designed for robust circuit protection in industrial power distribution systems. It features a 400A current rating and 250V voltage rating with a high 200kA interrupting capacity at rated voltage for reliable fault interruption. The fuse employs a single-barrel blade connection design with a 2-inch diameter construction, classified as a Class K fuse for time-delay characteristics that prevent nuisance tripping from motor starting currents. This Amp-Trap series fuse meets industry standards for industrial electrical protection applications including motor branch circuits, feeders, and mains where selective coordination is required.

Key Features & Specifications

• Type: Class K1 current-limiting time-delay fuse with blade connection, single barrel design
• Voltage Rating: 250V AC
• Current Rating: 400A
• Dimensions: 2-inch diameter
• Standards: UL/CSA certified Class K fuse
• Applications: Industrial motor circuits, feeders, mains, and branch circuit protection
• AIC rating: 200,000A at 250V
• Connection: Blade type
• Barrels: 1
• Class Rating: K
• Weight: 2 lb
• Family: Amp-Trap series

Product Identification

• UPC: 78200190719
• GTIN: 00782001907198