Square D QBL32100 - 100 A, 240 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D QBL32100—a reliable 100 A, 240 V, 3-pole molded case circuit breaker designed to protect your electrical landscape with precision. Built to integrate seamlessly into panelboards and load centers, this unit delivers dependable overcurrent and short-circuit protection where it matters most.

Why the QBL32100 stands out

• Compact molded-case design optimizes panel space, making it easier to fit into dense electrical layouts without sacrificing protection or performance.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both overloads and short circuits, helping prevent nuisance trips while preserving circuit integrity.
• 3-pole protection ensures all three phases disconnect together in 3-phase systems, enhancing safety and simplifying system coordination.
• OEM-compatible designed to work with matching Square D load centers and panelboards, ensuring reliable fit and consistent electrical characteristics.
• Versatile performance suitable for residential, commercial, and light industrial applications, providing a solid foundation for diverse electrical protection needs.

Ideal use cases

• New installations where space efficiency is critical in panelboards and load centers.
• Panelboard upgrades or retrofits requiring a trusted, OEM-matched 100 A, 240 V, 3-pole solution.
• Branch circuit protection in commercial or light industrial settings with moderate load demands.
• Systems where predictable trip behavior is essential for safety and uptime.

Technical snapshot

• Manufacturer: Square D
• Part Number: QBL32100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 240 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Choosing the Square D QBL32100 means prioritizing dependable protection, space-efficient design, and seamless compatibility with your existing Square D equipment. Whether you’re outfitting a new panel or upgrading an aging distribution system, this 3-pole molded case breaker delivers consistent performance when it’s needed most. For installers and facility managers, it’s a straightforward, reliable choice that reduces uncertainty and keeps electrical systems running smoothly.