Federal Pacific Electric NJL631300R U Circuit Breaker

Federal Pacific Electric NJL631300R U is a three-pole circuit breaker built for 3‑phase systems. It is rated for 300 A at 480 V, with an interrupting capacity of 14K, providing overcurrent protection for feeders and equipment in 480 V, three‑phase circuits. The NJL631300R U designation identifies this specific FPE unit within the line. This high‑current protective device is intended for use in electrical installations that require 300 A protection on a 480 V three‑phase supply, such as distribution panels and feeders in commercial and industrial contexts. When installed in compatible enclosures, it helps prevent damage from short circuits and overloads by rapidly interrupting fault current up to its 14K rating. The combination of 3‑pole construction, 480 V rating, and 300 A current rating makes it suitable for safeguarding large three‑phase loads and equipment in appropriate industrial settings.