Square D QOU315 15A 3P 240V Circuit Breaker | AmpState

Meet the Square D QOU315 15A 3P 240V circuit breaker — a purpose-built protection device designed for panelboards, load centers, and electrical distribution networks. This OEM-grade unit helps you keep critical systems safeguarded while ensuring your BOM stays aligned to the original part number, making it an ideal choice for replacement projects and strategically stocked spares.

• Exact OEM compatibility — Part Number QOU315 is matched to Square D panels and assemblies, delivering a dependable, code-compliant fit that installers can trust.
• Three-pole, 240V operation — Supports protection for 3‑phase circuits common in commercial and light industrial distributions, with a single device handling all three hot legs.
• 15 ampere rating — Provides precise overcurrent protection for branch circuits without unnecessary tripping, helping equipment stay productive and safe.
• Smart stocking for BOM integrity — Designed for spare inventories to preserve original equipment configurations and streamline panel upgrades or repairs.
• Support from AmpState — This item is available through AmpState, with friendly assistance to confirm fit and compatibility if you’re unsure about a match.

Typical use cases include replacing aging or worn breakers in inspection-ready panelboards and load centers, retrofitting legacy electrical distributions, or maintaining a ready-to-run spare that mirrors the original installation. For best results, compare the panel’s listing and the original part number to QOU315, and when in doubt, reach out — we’re ready to help you verify fit and ensure you’re selecting the exact protection device your system requires.