Ferraz Shawmut A70QS90-4 - Low Voltage Fuse 90A (200kA AIC @700V)

Ferraz Shawmut A70QS90-4 is a low-voltage current-limiting fuse from the Amp-Trap family, designed for high-performance circuit protection in industrial electrical systems. This 700V-rated fuse features a 90A current rating and delivers 200kA interrupting capacity at full voltage, housed in a compact 1-inch diameter single-barrel design compliant with UL/CSA standards. Its current-limiting construction provides fast-acting protection against short circuits and overloads, making it ideal for motor control centers, switchgear, and power distribution panels requiring reliable fault isolation.

Key Features & Specifications

• Type: A70QS current-limiting fuse with quartz sand filler and silver element
• Voltage Rating: 700V AC
• Current Rating: 90A
• Dimensions: 1" diameter x 4.5" length (standard 1-barrel configuration)
• Standards: UL 248-10, CSA C22.2 No. 248.10
• Applications: Industrial switchgear, MCCs, power distribution systems
• AIC rating: 200kA @ 700V
• Fuse Class: Amp-Trap® low-voltage current-limiting

Product Identification

• UPC: 78200194866
• GTIN: 00782001948665