Cutler-Hammer A30QS550-4 - Class L Fuse 550A (200kA AIC @ 300V)

The Cutler-Hammer A30QS550-4 is 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 300V AC voltage rating, with a high 200kA interrupting capacity at its rated voltage. The fuse is constructed as a single-barrel unit with a 1.5-inch diameter and utilizes a bolt-in connection for secure installation, complying with relevant industry standards for safety and performance. This fuse is designed for demanding applications such as protecting motor circuits, feeders, and branch circuits in industrial control panels and switchgear, where reliable fault interruption is critical.

Key Features & Specifications

• Type: Amp-Trap Class L, Low Voltage Current-Limiting Fuse, Bolt-In Connection, Single Barrel
• Voltage Rating: 300V AC
• Current Rating: 550A
• Dimensions: 1.5" Diameter
• Standards: UL Listed, CSA Certified
• Applications: Industrial Motor Protection, Feeder and Branch Circuit Protection, Switchgear
• AIC rating: 200kA @ 300V AC
• Connection: Bolt-In
• Barrels: 1
• Weight: 2 lb
• Fuse Class: Class L

Product Identification

• UPC: 78200128088
• GTIN: 00782001280888