Square D QDL32150 - 150 A, 240 V, 3-Pole Circuit Breaker | AmpState

The Square D QDL32150 is a 150A, 240V, 3-pole molded case circuit breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a compact footprint, it helps maximize usable panel space without compromising safety or performance.

Key to its reliable protection is a thermal-magnetic trip unit that combines an accurate thermal element for steady overload detection with a magnetic trip for fast response to short circuits. The result is stable, repeatable protection across a range of operating conditions, reducing nuisance trips and safeguarding wiring insulation and connected equipment.

• Three-pole configuration ensures simultaneous disconnection of all poles for coordinated protection of multi-wire branch circuits.
• 150-ampere current rating and 240-volt operation suit main feeders and large branch circuits in residential, commercial, and light industrial installations.
• Designed to pair with matching Square D OEM loadcenters and panelboards, ensuring clean fit, reliable mounting, and electrical coordination within an existing Square D ecosystem.
• Compact molded case design optimizes panel layout, letting you maximize space without sacrificing protection performance.
• Ideal for protecting feeders, subpanels, and large lighting or equipment circuits where reliable, code-compliant overcurrent protection is required.

Technical specifications at a glance:

• Manufacturer: Square D
• Part Number: QDL32150
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150A
• Voltage Rating: 240V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the QDL32150? Electricians and facilities managers wiring or upgrading panelboards and load centers in homes, offices, retail spaces, or light industrial facilities who need robust, reliable protection for high-load circuits. It’s a practical choice when replacing an aging 3-pole breaker or expanding capacity in a Square D system, ensuring consistent protection and straightforward compatibility with existing Square D components.