Ferraz Shawmut A2K450R - RK1 Class Fuse 400A/250V (200kA AIC)

Ferraz Shawmut A2K450R is a low-voltage current-limiting fuse designed for high-performance circuit protection in industrial electrical systems. This RK1-class fuse features a 250V AC rating with a 400A current capacity and 200kA interrupting rating at 250V for reliable short-circuit protection. The single-barrel construction measures 2.06" in diameter with a robust 4 lb design for mechanical durability. Compliant with industry standards for low-voltage fuses, it provides selective coordination in motor control centers, switchgear, and power distribution panels.

Key Features & Specifications

• Type: A2K-R series current-limiting fuse with RK1 time-delay characteristics
• Voltage Rating: 250V AC
• Current Rating: 400A
• Dimensions: 2.06" diameter single-barrel construction
• Standards: UL/CSA recognized for low-voltage applications
• Applications: Motor protection, switchgear, industrial power distribution
• Class Rating: RK1
• AIC rating: 200kA@250V
• Weight: 4 lb