Square D | QOU3201200 | Circuit Breaker | 20A | 3-Pole | 240V

Square D QOU3201200 Circuit Breaker — 20A, 3-Pole, 240V is a purpose-built protection device designed for maintenance, retrofit, and replacement projects where exact specifications matter. This 3-pole design provides simultaneous disconnection across all three conductors, delivering reliable protection for 3‑phase-style circuits in commercial and light industrial panels.

• Precise compatibility — part number QOU3201200 is your best reference for matching this breaker to the right panel. Always confirm fit and ratings before ordering.
• Three-pole protection — ensures all three live conductors trip together, enhancing safety for multi‑line circuits and complex equipment.
• 20A, 240V specification — specifically rated for circuits that operate at 240 volts with a 20-amp maximum, providing appropriate protection without nuisance trips.

Who should consider this model

• Maintenance technicians performing panel service and routine replacements where a 3‑pole, 20A, 240V breaker is required.
• Facility managers conducting panel retrofits or upgrades that demand exact spec alignment with existing Square D installations.
• Electrical contractors replacing failed breakers in commercial or light industrial environments where multiple conductors must be simultaneously isolated.

Use cases and practical scenarios

• Replacing a worn-out 3‑pole 240V breaker in a 3‑phase distribution panel to restore balanced protection for motor drives or multi‑line circuits.
• Retrofits where your panel’s original specs call for a QOU3201200‑type device to maintain code compliance and breaker behavior.
• Maintenance swaps in facilities that rely on precise, predictable trip characteristics to minimize downtime.

What to check before you buy

• Confirm the panel accepts the QOU series or the exact part number QOU3201200 for compatibility.
• Verify the circuit requires 240V operation with a 20A rating and three poles.
• Keep the part number handy as the most reliable reference when coordinating replacements or retrofits.

Tips for a smooth installation and reliable performance

• Power down the panel and follow safe electrical practices before replacing any breaker.
• Double-check labeling and inventory to ensure the replacement matches the exact specification: 20A, 3-Pole, 240V, part number QOU3201200.
• Store spare breakers in their original packaging until installation to prevent damage or deformation of connectors.

Designed for technicians who demand accuracy, durability, and straightforward compatibility, the Square D QOU3201200 20A 3-Pole 240V circuit breaker brings dependable protection to your panels where a precise spec match is non‑negotiable. If your project requires a three-line disconnect at 240V with a 20A rating, this is the component to reference and match against your existing equipment.