Square D | LI36300CBA | Circuit Breaker | 300A | 3-Pole | 600V

Meet the Square D LI36300CBA circuit breaker—a robust, three-pole protection device built for demanding 3-phase systems. With a 300A current rating and a 600V maximum rating, this breaker is engineered to handle the high-current demands of industrial and commercial electrical networks, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.

Why this LI36300CBA stands out

• Three-pole design provides synchronized protection for all phases in 3-phase circuits, helping to guard equipment and maintain system stability.
• High-current capability at 300A supports substantial loads common in manufacturing lines, data centers, and large commercial installations.
• 600V maximum rating suits a wide range of industrial and commercial panel setups, ensuring compatibility with standard utility and equipment standards.
• Part-number fidelity the LI36300CBA designation is the most reliable reference for compatibility with Square D panels and bus configurations.

Key specifications

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 600V
• Part number: LI36300CBA

Ideal applications

Use the Square D LI36300CBA for:

• Main protection in 3-phase industrial panels and commercial switchboards
• Retrofits where older Square D equipment requires exact specifications
• Maintenance replacements to restore original protection levels and trip characteristics
• Equipment rooms, production lines, and data centers that rely on reliable three-phase safeguarding

Compatibility and fit

Before ordering, verify fit and ratings against your panel’s labeling and documentation. The LI36300CBA part number is the best reference for compatibility, ensuring the correct trip curve, mounting style, and electrical connections align with your Square D installation.

What you get

One LI36300CBA circuit breaker designed for 3-pole, 300A, 600V service in compatible Square D panels. Ready to install in systems that require precise Square D specifications and reliable three-phase protection.

Installation and safety tips

• Power down and lockout/tagout the equipment before replacing or installing the breaker.
• Follow manufacturer torque specifications and panel installation guidelines to ensure a secure, compliant connection.
• Verify the new breaker trips correctly under simulated fault conditions and that all protective interlocks remain functional.

Designed for professionals who demand dependable protection for high-current, three-phase systems, the Square D LI36300CBA delivers precise compatibility, robust performance, and piece-of-mind in retrofit or replacement projects. Add it to your cart to ensure your panel continues to operate safely and efficiently.