Ferraz Shawmut A50QS125-4R - Low Voltage Fuse 125A@500V (200kA AIC)

Ferraz Shawmut A50QS125-4R is a low-voltage fuse designed for high-interrupting circuit protection in industrial electrical systems. This 500V-rated fuse features a 125A current rating with a 200kA interrupting capacity at 500V, ensuring reliable overcurrent protection. The bolt-in blade connection and single-barrel construction with a 1.22" diameter provide robust physical integration in panelboards and switchgear. UL/CSA compliant, this Amp-Trap series fuse meets stringent safety standards for commercial power distribution. Typical applications include motor control centers, industrial machinery, and power conversion equipment where high fault current protection is critical.

Key Features & Specifications

• Type: A50QS bolt-in blade fuse, single barrel construction
• Voltage Rating: 500V AC
• Current Rating: 125A
• Dimensions: 1.22" diameter
• Standards: UL/CSA listed
• Applications: Industrial power distribution, motor protection
• Connection: Bolt-In Blade
• Barrels: 1
• AIC rating: 200kA@500V
• Family: Amp-Trap
• Item Subcategory: Low Voltage Fuse