Schneider Electric QOU3401200 Circuit Breaker, 40A, 3-Pole, 240V

Schneider Electric QOU3401200 is a rugged, industrial-grade circuit breaker designed to safeguard three-phase systems. With a 40-amp rating and 240-volt operation, this unit from the QOU series delivers reliable protection for demanding electrical service, maintenance, and replacement projects in industrial environments.

• Amperage: 40 A
• Poles: 3
• Voltage: 240 V
• Series / Part Number: QOU3401200

Designed to protect multi‑phase circuits, the QOU3401200 ensures that all live conductors trip together, reducing exposure to partially energized equipment and helping maintain safe shutdowns during faults or overloads. This makes it an ideal choice for industrial feeders, motor circuits, and distribution panels where coordinated trip protection is essential.

Why this model stands out

• Dedicated three-pole protection: Simultaneous disconnection of all three phases enhances safety and equipment protection in 3‑phase networks.
• Standardized industrial compatibility: Built to integrate with Schneider Electric systems and existing QOU‑series installations, supporting consistent maintenance and replacement workflows.
• Clear part-number-based fit: Use the exact part number (QOU3401200) to confirm compatibility with your application requirements and panel configuration.

Who benefits most

• Maintenance teams performing routine service on industrial gear and switchgear
• Facility engineers upgrading or replacing aging protection devices in 3‑phase systems
• Manufacturing lines and process equipment that rely on reliable 240 V, three‑phase protection

Practical considerations and use cases

• Ideal for protecting feeders to motors, compressors, conveyors, and HVAC equipment in manufacturing and processing facilities.
• Suitable for panel upgrades or replacement projects where a 3‑pole, 240 V solution is specified.
• When selecting this part, verify fit by part number and assess your application requirements to ensure proper coordination with upstream protection and downstream devices.

Need help confirming compatibility? Message us and we’ll assist with part-number validation and application fit to ensure a seamless match for your specific installation.