Square D MJA36700 - 700 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Experience dependable overload and short‑circuit protection with the Square D MJA36700, a 700 A, 600 V, 3‑pole plug‑in molded case circuit breaker designed for panelboards and load centers. Available through AmpState, this unit delivers fast installation and reliable performance where it matters most.

Why this plug‑in breaker stands out

• Fast plug‑in connection: quick installation and effortless replacement, minimizing downtime during panel maintenance or upgrades.
• Thermal‑magnetic trip unit: provides stable, repeatable protection by reliably responding to overcurrent and short‑circuit events across temperature variations.
• 3‑pole design: suits three‑phase systems, ensuring balanced protection for commercial and light industrial loads.
• 700 A, 600 V rating: supports high‑demand branch circuits typical in panelboards and load centers used in commercial applications.
• OEM panel compatibility: designed to mate with matching Square D panelboards and load centers for seamless integration and predictable performance.
• Versatile applications: ideal for residential, commercial, and light industrial environments where reliable overcurrent and short‑circuit protection is essential.

Key specifications at a glance

• Manufacturer: Square D
• Part number: MJA36700
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 700 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug‑in
• Application: Branch circuit overcurrent and short‑circuit protection

Practical use and installation notes

Install this breaker in compatible Square D panelboards or loadcenters to ensure optimal performance and warranty coverage. The plug‑in design simplifies replacement during maintenance lulls or after a fault event, helping minimize system downtime. Ideal for service entrances, commercial feeders, and three‑phase distribution schemes where reliable protection and fast restoration are critical.