The Eaton Bussmann JCL-12RA Current-Limiting Fuse is a high‑voltage, single‑barrel current‑limiting fuse from the Bussmann series, designed for rapid protection in medium‑voltage motor and feeder circuits up to 5.08 kV. It is rated at 230 A with an 80 kA interrupting rating at 5.08 kV AC and uses a cartridge‑style body consistent with Class R fuses in the JCL family. Typically used for motor protection and power distribution feeders in high‑fault‑current environments, the JCL family includes related variants such as JCL‑A‑12R that share the same 230 A rating and high‑voltage performance, and the line is UL‑recognized for these protective applications.
