The Gould Shawmut TRS400R Tri-Onic Time-Delay Fuse is a dual-element time-delay fuse rated for 400 A at 600 V AC. It is part of the Gould Shawmut Tri-Onic line and carries the RK5 designation, indicating its time-delay current rating within this family. This fuse protects electrical circuits from overcurrent by interrupting the circuit when the rated current is exceeded, helping prevent damage to conductors and connected devices. The 400 A / 600 V-AC specifications denote its use for higher-current circuit protection in appropriate electrical systems.
