Mersen TR150R 150A 250V AC Class RK5 Dual-Element Time-Delay Fuse PK2

This listing is for two (2) new-in-box Mersen (Ferraz Shawmut) TR150R Tri-Onic Class RK5 dual-element time-delay fuses, each rated 150A at 250V AC with a 200,000A AC interrupting rating, as confirmed by both the fuse body labels and the second set of photos showing the Class RK5 designation and 200,000A IR. The dual-element design uses a separate overload element and short-circuit element within the same body, providing motor-circuit-grade time-delay characteristics that tolerate motor inrush current while responding quickly to sustained overloads and short circuits. Class RK5 rejection-style blade ferrule construction physically prevents installation in non-rejection fuse holders, eliminating the risk of substituting a lower-rated fuse. These fuses are RoHS compliant, UL Listed, CSA certified, and CE marked; boxes are date-coded 02/23/2026 and assembled in Mexico. Typical applications include motor branch circuit protection, disconnect switches, and panelboards requiring Class RK5 time-delay protection up to 250V AC.

Product Specifications