Cutler Hammer A15QS550-4 - Class A Fuse 550A (100kA AIC @ 150V)

The Cutler Hammer A15QS550-4 is a Class A low-voltage current-limiting fuse from the Amp-Trap family, engineered to provide superior short-circuit protection for industrial electrical systems. It features a 550A current rating and a 150V AC voltage rating, with a high 100kA interrupting capacity at its rated voltage to safely clear severe fault currents. The fuse is constructed as a single-barrel unit with a 1.5-inch diameter and a robust bolt-in connection, weighing 5.19 lb for secure installation. This component is UL certified and designed to meet stringent industry standards for safety and performance. It is typically applied in the protection of motor circuits, feeders, and branch circuits where reliable, fast-acting fault interruption is critical.

Key Features & Specifications

• Type: Class A, Amp-Trap, Low Voltage Current-Limiting Fuse
• Voltage Rating: 150V AC
• Current Rating: 550A
• Dimensions: 1.5" Diameter
• Standards: UL Certified
• Applications: Motor Circuit, Feeder, and Branch Circuit Protection
• AIC rating: 100kA @ 150V
• Connection: Bolt-In
• Barrels: 1
• Weight: 5.19 lb

Product Identification

• UPC: 78200130611
• GTIN: 00782001306113