Square D MA36500 - 500 A, 3-Pole Plug-In Circuit Breaker | AmpState

Engineered for reliability in service panels, the Square D MA36500 delivers robust 500 A, 3‑pole protection in a compact plug‑in molded case. Designed to keep branch circuits safe from overcurrent and short‑circuit events, this breaker is a trusted choice for electricians and facility managers working with panelboards and loadcenters.

• Fast plug‑in connection supports quick installation and straightforward replacements, reducing downtime during upgrades or maintenance.
• Thermal‑magnetic trip unit provides stable, repeatable protection by accurately responding to overloads and short circuits across varying temperatures and electrical loads.
• OEM‑grade compatibility is specifically designed to work with matching Square D OEM load centers and panelboards, ensuring a precise fit and dependable performance.
• High‑current reliability at 500 A with three poles makes it well suited for demanding residential service equipment, commercial panels, and light industrial applications.
• Plug‑in mounting simplifies retrofits and panel upgrades, streamlining service workflows and minimizing panel disassembly.

Why this breaker stands out

In environments where uptime matters, the MA36500 helps you prevent unnecessary outages by delivering predictable tripping behavior and durable construction. Its three‑pole design supports three‑phase systems or split‑phase configurations common in modern panelboards, while the molded case adds ruggedness for long‑term reliability in mixed‑use facilities.

Ideal use cases

Best suited for installations that require:

• Protected branch circuits in residential, commercial, and light industrial panels
• Upgrades or replacements in existing Square D panelboards and loadcenters
• Reliable protection for equipment sensitive to overcurrent and short circuits in frequently serviced panels

Technical snapshot

• Manufacturer: Square D
• Part number: MA36500
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 500 A
• Number of poles: 3
• Mounting style: Plug‑in
• Application: Branch circuit overcurrent and short‑circuit protection

Choose the Square D MA36500 when you need a high‑capacity, plug‑in protection device that delivers precise trip characteristics, fast installation, and seamless compatibility with Square D panel systems. It’s a practical, long‑term solution for keeping circuits safe in everyday commercial environments and beyond.