Square D QDL32090 - 90 A, 240 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D QDL32090 — a 90A, 240V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its compact molded-case footprint frees valuable space in tight electrical panels, while the thermal-magnetic trip unit provides stable, repeatable protection through normal operation and during fault conditions.

Why this breaker stands out

• Space-efficient design: The molded case is engineered to maximize panel space without compromising protection or reliability.
• Thermal-magnetic protection: Combines thermal elements for overload sensing with magnetic trip for fast, definitive short-circuit interruption. This means fewer nuisance trips during inrush and solid protection when it matters most.
• Three-pole configuration: Ideal for 3-phase systems, enabling safe distribution of power across L1, L2, and L3 in commercial and light-industrial settings.
• 90A, 240V rating: Suitable for mid-to-high load branch circuits and motor-driven loads common in HVAC, pumps, and equipment enclosures.
• OEM-compatible: Designed to pair with matching Square D loadcenters and panelboards for a seamless retrofit or upgrade, maintaining consistent electrical characteristics and performance.

Technical snapshot

• Manufacturer: Square D
• Part Number: QDL32090
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90A
• Voltage Rating: 240V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for these scenarios

• New installations or panel upgrades in light commercial spaces and small industrial settings requiring reliable 3-phase protection.
• Replacing a worn or outdated breaker in OEM Square D panelboards and load centers to maintain compatibility and performance.
• Motor circuits, HVAC equipment, and large lighting runs where consistent, predictable trip behavior reduces downtime.

Guidance for installation and use

• Ensure compatibility with your existing OEM panelboard or load center to maintain electrical performance and safety.
• Follow manufacturer installation instructions and local electrical codes, applying the correct torque and wiring practices for 3-pole devices.
• Use in appropriate environments within its ratings; this breaker is designed for residential, commercial, and light-industrial applications requiring dependable 3-phase protection.

With the Square D QDL32090, you’re choosing a proven, space-conscious solution that delivers precise protection for mid-range loads and 3-phase distribution. It’s the reliable choice when panel efficiency, consistent trip performance, and OEM compatibility matter in protecting your electrical system.