Mersen TR40R - TR Series Fuse 40A 250V (200kA AIC)

Mersen TR40R is a low-voltage current-limiting fuse from the Tri-Onic family, designed to provide reliable circuit protection in industrial applications. It features a 250V AC voltage rating and 40A current rating with a 200kA interrupting capacity at rated voltage, housed in a compact 0.81-inch diameter single-barrel design. The RK5 class fuse utilizes time-delay characteristics for motor circuit protection while maintaining current-limiting performance for short-circuit conditions. Compliant with industry standards for low-voltage fuses, it is commonly used in panelboards, switchgear, and motor control centers where selective coordination is required.

Key Features & Specifications

• Type: TR series time-delay current-limiting fuse (RK5 class)
• Voltage Rating: 250V AC
• Current Rating: 40A
• Diameter: 0.81 inches (20.57mm)
• Standards: UL/CSA recognized
• Applications: Motor circuits, industrial control panels
• AIC rating: 200kA @ 250V
• Barrels: 1
• Class Rating: RK5

Product Identification

• UPC: 782001747916
• GTIN: 00782001747916