Square D QOA2100 - 100A, 2-Pole, Circuit Breaker

Square D QOA2100 is a dependable 100A, 2-pole circuit breaker engineered for demanding electrical environments. Built to provide trusted overcurrent protection, it fits seamlessly into panelboards, switchboards, and control panels across industrial, commercial, and OEM applications.

• Current rating — 100A protection for feeders and branch circuits, helping safeguard valuable equipment and maintain safe operation in distribution panels and motor control centers.
• Poles — 2-Pole design interrupts both hot legs simultaneously, simplifying wiring and ensuring coordinated protection for multi-wire circuits.
• Versatile deployment — ideal for panelboards, switchboards, and control panels, adaptable to a range of industrial, commercial, and OEM installations.
• Reliability — a robust component from Square D, designed to deliver consistent protection in environments where dependable performance matters and downtime is costly.

Use cases and scenarios

• New installations that require solid, two-pole protection up to 100A in a compact footprint.
• Panelboard upgrades or retrofits where consistent overcurrent protection is essential for safe operation.
• Motor control centers and distribution panels needing reliable two-hot-leg protection for critical equipment.
• OEM equipment integrations where a proven Square D protection solution enhances safety and reliability.

Why choose the QOA2100 — this breaker combines precise current limiting with straightforward, two-pole operation, delivering a practical balance of protection and ease of integration for everyday electrical systems. If your project demands dependable 100A two-pole protection in panelboards, switchboards, or control panels, the QOA2100 is engineered to meet that need with consistent performance.

Practical notes for installation and compatibility

• Ensure the panelboard, switchboard, or control panel supports Square D QOA series breakers for optimal fit and function.
• Plan for two-pole interruption in multi-wire circuits to maintain coordinated protection and safe shutdown behavior.
• Ideal for industrial, commercial, and OEM environments where robust overcurrent protection is essential for longevity and reliability of electrical distribution systems.