Square D HDL36080 - 80 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet Square D HDL36080 — a dependable 3‑pole molded case circuit breaker engineered to safeguard your panelboards and load centers from overloads and short circuits. With an 80 A rating and a 600 V capacity, this breaker is built to handle demanding distribution needs in a compact footprint.

Why this HDL36080 stands out

Compact molded‑case design minimizes footprint while maximizing usable panel space, helping you fit multiple circuits into a clean, organized breaker panel. Its streamlined form factor makes it a practical drop‑in solution for both new installations and panel upgrades.

Thermal‑magnetic trip unit delivers stable, repeatable protection across a wide range of temperatures and fault conditions. The combination of thermal overload protection with instantaneous magnetic trip ensures reliable interruption when a fault occurs, while reducing nuisance trips during normal operation.

3‑pole construction for 3‑phase systems aligns with modern commercial and light industrial loads, providing synchronized protection for all phases in 3‑phase feeders and motor circuits up to 80 A. This is essential for maintaining balanced loads and preventing equipment damage in three‑phase environments.

OEM‑level compatibility designed to work with matching Square D OEM load centers and panelboards. This ensures seamless integration, straightforward replacement, and consistent electrical performance within your existing distribution architecture.

Versatile applications suited for residential, commercial, and light industrial settings. Use HDL36080 to protect branch circuits powering lighting, HVAC, pumps, conveyors, and other 3‑phase equipment where reliable overcurrent and short‑circuit protection is critical.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: HDL36080
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 80 A
• Voltage rating: 600 V
• Poles: 3
• Application: Branch circuit overcurrent and short‑circuit protection

Use cases and installation scenarios

• Upgrading legacy panels in small offices or retail spaces to improve protection for 3‑phase lighting and motors
• Implementing robust feeder protection for commercial HVAC, pumps, or ceiling grid systems in light industrial settings
• Replacing worn or incompatible breakers in OEM‑matched panelboards to maintain consistent trip characteristics

What makes it the right choice (vs. alternatives)

Choosing HDL36080 means selecting a 3‑pole breaker designed to align precisely with Square D OEM load centers, ensuring reliable mating surfaces, predictable trip behavior, and coherent labeling within the panel. Its thermal‑magnetic trip unit is tuned for stable operation across temperature swings, reducing the risk of irregular trips in environments with fluctuating loads. In short, it’s a purpose‑built solution for dependable distribution protection in installations that demand consistent performance and easy serviceability.

Practical installation and maintenance tips

• Verify panel compatibility by matching the part number HDL36080 with your Square D load center model.
• Ensure the panel is de‑energized and circuits are de‑selected before replacement to maintain safety.
• Follow manufacturer torque specifications for bus connections to maintain proper electrical contact.
• Periodically inspect the breaker for signs of wear or overheating and replace if trip calibration drifts.