Square D HDA36150 - 150 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

When you need dependable, high‑capacity protection for 3‑phase panelboards and load centers, the Square D HDA36150 is purpose‑built to perform. This 150 A, 600 V, 3‑pole plug‑in molded case circuit breaker delivers fast installation, precise protection, and seamless compatibility with Square D OEM equipment, making it a reliable choice for demanding electrical environments.

Key benefits

• Fast plug‑in connection: Quick installation and easier replacements mean less downtime during panel upgrades or service calls.
• Thermal‑magnetic trip unit: Delivers stable, repeatable protection for both overloads and short circuits, helping protect downstream equipment from damage.
• 3‑pole, 150 A at 600 V: Designed to handle 3‑phase systems up to 600 V, ideal for commercial and light industrial applications.
• Rugged molded‑case construction: Built to withstand field conditions while maintaining reliable performance over time.
• OEM‑matched compatibility: Fits cleanly into compatible Square D load centers and panelboards for a secure, proper fit.
• Versatile use cases: Suitable for residential, commercial, and light industrial protects against branch‑circuit overcurrent and short‑circuit events.

Technical specifications

• Manufacturer: Square D
• Part number: HDA36150
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 150 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug‑in
• Application: Branch circuit overcurrent and short‑circuit protection

Ideal use cases

Upgrade or retrofit projects in shops, offices, and light industrial facilities where 3‑phase distribution is employed. It’s a smart choice when you need robust protection for feeders and branch circuits while keeping installation time to a minimum. The 600 V rating broadens compatibility with commercial equipment, motor feeders, and other higher‑voltage applications, all within a single, reliable package.

Installation and compatibility

Designed for plug‑in mounting, this breaker works with matching Square D OEM panelboards and load centers, ensuring proper bus alignment and reliable electrical contact. Its compact, molded‑case design fits standard timing and tamper‑resistant requirements for safe field installation, minimizing service interruptions and simplifying panel maintenance.

In short, the Square D HDA36150 combines fast, hassle‑free installation with dependable thermal‑magnetic protection for 150 A circuits at up to 600 V. It’s the practical, high‑integrity choice for safeguarding three‑phase branch circuits across residential, commercial, and light industrial settings.