ABB XT3NU3150AFF000XXX Molded Case Circuit Breaker

ABB XT3NU3150AFF000XXX is a Tmax XT molded‑case circuit breaker configured as a 3‑pole device rated at 150 A for low‑voltage distribution. It belongs to the XT3N family and is designed for 600Y/347/690 VAC service with a 10 kA interrupting rating, making it suitable for protecting feeders and motor control centers in industrial panels. The unit features front line/load side terminals and a compact footprint compatible with standard MCCB enclosures. Built with double‑insulated construction, it operates across a temperature range of −13 to 158 °F (−25 to 70 °C). Its approximate dimensions are 5.9 inches high, 4.13 inches wide, and 2.75 inches deep. This three‑phase device provides thermal‑magnetic protection and is intended for use in 50/60 Hz distribution applications requiring reliable overload and short‑circuit protection at the 600 V class.