Square D HDL36150U44X - 150 A, 3-Pole Circuit Breaker | AmpState

Square D HDL36150U44X — a 150 A, 3‑Pole molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Available from AmpState, this unit is built to integrate seamlessly with matching OEM components for reliable, long‑term performance.

Designed to maximize panel space without compromising protection, the HDL36150U44X features a compact molded‑case body that fits neatly into residential, commercial, and light industrial distributions. Its thermal‑magnetic trip unit delivers stable, repeatable protection across varying operating conditions, providing precise overload protection while rapidly interrupting dangerous fault currents when a short occurs. This means fewer nuisance trips and safer, more predictable electrical operation in everyday systems.

• Compact molded‑case design optimizes panel space for efficient wiring and easier installation.
• Thermal‑magnetic trip unit offers reliable overload protection with instantaneous response to short circuits for enhanced safety.
• Three‑pole configuration suitable for 3‑phase panelboards and load centers, supporting feeders up to 150 A.
• OEM‑compatible designed to pair with matching Square D load centers and panelboards for straightforward replacement and consistent performance.
• Versatile across applications ideal for residential, commercial, and light industrial environments, including HVAC, lighting feeders, and distribution panels.

Why this matters

When upgrading or repairing a panel, choosing a breaker that matches your existing Square D components minimizes wiring alterations and ensures synchronized protection. The HDL36150U44X’s precise trip characteristics reduce the risk of nuisance trips while maintaining rapid fault interruption, helping protect wiring insulation, connected equipment, and occupants alike.

Specifications at a glance

• Manufacturer: Square D
• Part Number: HDL36150U44X
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 150 A
• Number of Poles: 3
• Application: Branch circuit overcurrent and short‑circuit protection

Ideal for electricians and facilities teams upgrading or maintaining panel assemblies, the Square D HDL36150U44X delivers dependable protection with a space‑savvy design and OEM compatibility. For streamlined integration and consistent performance across your Square D ecosystem, this 150 A, 3‑pole breaker is a practical, durable choice.