Schneider Electric QOU345U Three-Phase Circuit Breaker

The Schneider Electric QOU345U is a three‑pole unit‑mount miniature circuit breaker rated for 45 A at 240 V AC, designed for overcurrent protection and switching in OEM panels and enclosures. Based on the QO family, it features a cable‑in/cable‑out configuration with a Visi‑Trip indicator for quick trip status, and it can be mounted in DIN rail, surface, or flush configurations as needed. The device provides a 10 kA interrupt rating at 240 VAC (50/60 Hz), making it suitable for reliable short‑circuit protection in demanding industrial or commercial applications. Typical uses include control panels, motor or equipment protection, and other 3‑phase distribution setups where compact, dependable protection is required.