Westinghouse FB3100L Double Circuit Breaker Feeder Bucket

The Westinghouse FB3100L Double Circuit Breaker Feeder Bucket is a 12-inch-wide MCC feeder bucket designed for Westinghouse Type W motor control centers, delivering 100 Amp feeder protection at 600 Volt with a 3-pole, 3‑phase configuration. It uses a double feeder breaker assembly with an included FB Frame Circuit Breaker and thermal-magnetic protection, configured as a feed-through style breaker assembly for MCC bucket installation in industrial power distribution systems. This feeder bucket is intended for replacement, retrofit, or expansion of existing Type W MCCs and is commonly installed in manufacturing facilities, processing plants, conveyor systems, HVAC infrastructure, pumps, and automation equipment that require centralized feeder protection and reliable power distribution. Typical installations align with Westinghouse Type W MCC lineups, supporting centralized control and expansion of motor control center architectures in industrial environments. The product is defined as a Double Circuit Breaker Feeder Bucket, with a 12-inch bucket width, 3‑pole, 3‑phase configuration, 600 V rating, and 100 A rating, and it uses thermal-magnetic protection to guard feeder circuits. It is suitable for industrial feeder and power distribution systems within motor control centers. This description reflects common replacements and retrofit scenarios within Westinghouse Type W MCC installations.