Square D | MAF36300V | Circuit Breaker | 300A | 3-Pole | 36300V

The Square D MAF36300V Circuit Breaker is a rugged, three‑pole protection device engineered to safeguard demanding electrical systems. With a 300A rating and a 36300V class, this breaker is designed for installations where precise compatibility and reliable interruption are critical. The part number MAF36300V serves as the most reliable reference for matching with your Square D gear, making substitutions and retrofit projects straightforward and error‑free.

Built for maintenance, retrofit, and replacement tasks, this 3‑pole breaker delivers synchronized protection across all three phases. That means balanced current distribution, reduced risk of phase imbalance, and improved protection for motors, drives, and other three‑phase equipment in commercial and industrial environments.

• Amperage: 300A
• Poles: 3‑Pole
• Voltage: 36300V
• Part number: MAF36300V — the best reference for compatibility

Important notes for purchasing: before you order, confirm fit and ratings to ensure the breaker matches your panelboard or distribution setup. Relying on the exact part number (MAF36300V) helps guarantee compatibility with your existing Square D infrastructure and minimizes the risk of mismatches during service, retrofit, or replacement projects.

Ideal use cases

• Maintenance and service replacements in industrial facilities, data centers, and commercial buildings
• Retrofit projects where current equipment requires a 3‑pole, 300A protection device
• Spare parts lineup for ongoing service programs to reduce downtime
• Emergency repairs for damaged circuits in three‑phase power distribution systems

Why choose this model for your system

• Clear, unambiguous compatibility through the MAF36300V part number, simplifying ordering and installation
• Three‑pole configuration provides coordinated protection across all phases, vital for motor loads and balanced elevator, HVAC, or manufacturing equipment
• High current capability (300A) suitable for mid‑ to high‑demand distribution circuits while maintaining safety margins

Practical tips for best results: verify your panel’s labeling to ensure it supports a 3‑pole, 300A device with the same voltage class, and keep a reference copy of the MAF36300V part number in your service inventory for faster future replacements. This approach helps maintain uptime and keeps your electrical distribution performing as designed.