ECNR/ECSR Class RK5 Dual-Element Time-Delay Fuse Specifications

This document provides specifications, features, and applications for AutomationDirect's ECNR (250V) and ECSR (600V) dual-element, time-delay Class RK5 fuses, including cross-reference data for Bussmann, Mersen, Gould, and Littelfuse equivalents. It details ampere ratings, interrupting ratings (200kA RMS symmetrical AC, 20kA DC), dimensions, agency approvals (UL Listed, CSA Certified), and includes time-current curves for overcurrent protection of motors, transformers, and general-purpose circuits.