Square D | LA34225MC | Circuit Breaker | 225A | 3-Pole | 600V | 30kA | Plug-In

Deliver reliable overcurrent protection with the Square D LA34225MC Plug-In Circuit Breaker. Designed for demanding electrical environments, this 225A, 3-pole unit provides solid three-phase protection while plugging into compatible Square D panels for fast, downtime-minimizing replacements. With a 600V maximum rating and a 30kA interrupting capacity, it’s built to handle substantial fault currents and keep your distribution system safe and stable.

Key specifications at a glance

• Amperage: 225A
• Poles: 3-Pole (three-phase protection)
• Voltage: 600V maximum
• Interrupt rating: 30kA
• Mounting: Plug-In design for easy installation and quick swaps
• Part number: LA34225MC (best compatibility reference)

Why choose the LA34225MC for your system

• Plug-In convenience: The plug-in form factor minimizes labor and downtime during maintenance, retrofit, or replacement projects, allowing you to restore protection quickly without intrusive wiring changes.
• High-capacity protection: A 225A rating supports substantial load circuits, making it well-suited for commercial, industrial, and large commercial installations that require robust branch circuit protection.
• Strong fault-current tolerance: The 30kA interrupt rating provides reliable clearing under high fault conditions, reducing the risk of damage to downstream equipment and wiring.
• Clear compatibility reference: Using the LA34225MC part number as your guide ensures you’re selecting a unit that aligns with your panel’s design and ratings, minimizing guesswork in maintenance or replacement scenarios.

Ideal use cases

Maintenance and retrofit projects where panel components must match exact specifications, or when upgrading an aging electrical distribution system. It’s also suitable for replacement in compatible panels that require a three-pole, 225A plug-in breaker to maintain consistent protection across three-phase circuits in commercial or light-industrial settings.

Practical tips for installation and success

• Always confirm fit and ratings before ordering—the LA34225MC reference is your best guide for compatibility with your panel.
• Plan for straightforward swaps in panels that support plug-in breakers to minimize service interruptions.
• Document the replacement with the part number (LA34225MC) to streamline future maintenance and warranty inquiries.