Industrial FRS-R-400 Time Delay Current Limiting Fuse

The Fusetron FRS-R-400 is an industrial dual-element time-delay current-limiting fuse rated for 400 A at 600 V. Its dual-element construction and time-delay response are designed to tolerate brief overloads or inrush currents while still interrupting fault currents to protect wiring and equipment. As part of the FRS-R family, this 400 A, 600 V device offers dependable overcurrent protection in demanding industrial environments. This time-delay current-limiting fuse provides the balance of surge tolerance and fast fault interruption, helping minimize downtime in power systems. Identified by the FRS-R-400 designation, it is intended for industrial power protection applications requiring a robust, high-current fuse. With its durable construction and clear labeling, it supports reliable operation in installed electrical protection schemes. Using a 400 A, 600 V rating, it defines the maximum operating current and voltage for circuits protected by this model, making it a specific, non-generic choice for heavy-duty protection.