Square D MGA36600 - 600 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D MGA36600 is a rugged, plug-in molded case circuit breaker engineered to protect large branch circuits in panelboards and loadcenters. With a 600 A ampacity and a 600 V rating, this 3-pole device is designed for demanding three‑phase applications while delivering dependable, code‑compliant protection.

Designed for fast, reliable maintenance and upgrades, the MGA36600 uses a plug-in connection for a secure, simple installation and quick replacement. Its thermal-magnetic trip unit combines precise thermal overload protection with instantaneous magnetic trip for short circuits, giving you stable, repeatable protection that minimizes downtime and equipment damage.

• Fast plug-in connection for quick installation and effortless replacement, reducing panel downtime.
• Thermal-magnetic trip unit delivers stable, repeatable protection against overloads and short circuits.
• 600 A / 600 V, 3-pole capability suited for large, three-phase circuits in panelboards and loadcenters.
• OEM-compatible with matching Square D load centers and panelboards for a secure fit and coordinated protection.
• Versatile applications ideal for residential, commercial, and light industrial electrical systems requiring robust branch-circuit protection.

Technical snapshot

• Manufacturer: Square D
• Part Number: MGA36600
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 600 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Main protection for large service panels in commercial buildings or multi‑family residences
• Motor feeders and distribution circuits in light industrial settings
• HVAC equipment distribution where three-phase power requires reliable protection

Practical considerations: verify panelboard compatibility before installation and follow applicable electrical codes. The MGA36600 is purpose-built for Square D panelboards and loadcenters, ensuring clean electrical coordination and secure plug-in mounting for long-term reliability.