Ferraz Shawmut TR4-1/2R - TR Fuse 4A 250V (200kA AIC RK5 Class)

Ferraz Shawmut TR4-1/2R is a low-voltage fuse designed for circuit protection in industrial electrical systems. This RK5-class TR-type fuse features a 250V AC rating with a 4A current capacity and 200kA interrupting rating at 250V, housed in a compact 0.56" diameter single-barrel design. Constructed as part of the Tri-Onic family, the 0.05 lb fuse meets industry standards for reliable overcurrent protection in motor control centers, transformers, and power distribution equipment.

Key Features & Specifications

• Type: TR-class time-delay fuse with dual-element construction
• Voltage Rating: 250V AC
• Current Rating: 4A
• Dimensions: 0.56" diameter
• Standards: RK5 class rating
• Applications: Motor circuits, transformers, industrial controls
• AIC rating: 200kA@250V
• Barrels: 1
• Weight: 0.05 lb

Product Identification

• UPC: 782001747725
• GTIN: 00782001747725