Square D LI364001021 400A 3-Pole 600 V Circuit Breaker

Meet the Square D LI364001021 400A 3-Pole 600 V Circuit Breaker — a trusted solution for protecting three-phase electrical installations. This 3-pole unit is designed for systems up to 600 V and carries a 400 A rating, delivering reliable current interruption to safeguard equipment and maintain service continuity.

• Current rating: 400 A — handles high-load circuits in industrial panels while providing dependable overcurrent protection.
• Poles: 3 — ideal for three-phase distribution, ensuring balanced protection across all live lines.
• Voltage rating: 600 V — suitable for commercial and industrial environments with higher voltage applications.
• Part number LI364001021 — precise replacement for compatible Square D panels and systems.

Why choose this Square D breaker? Beyond basic protection, it’s engineered to integrate seamlessly with Square D distribution panels, offering consistent trip characteristics and reliable performance in demanding conditions. If you’re upgrading an existing panel or deploying a new installation, this unit provides a clear path to robust, code-compliant electrical protection for three-phase loads up to 400 A.

Practical use cases:

• Upgrading a three-phase service entrance or distribution panel that requires a 400 A, 3-pole, 600 V breaker.
• Retrofitting older equipment to meet current safety standards while maintaining system reliability.
• Integrating into new industrial control rooms or manufacturing lines that run 600 V three-phase power.

Installation and compatibility notes: Verify that the panel and bus assembly are compatible with the LI364001021 model. Follow all applicable electrical codes and manufacturer installation guidelines to ensure proper mounting, connection, and safety clearances. This Square D circuit breaker is intended for use in environments where three-phase protection at up to 600 V is required.

Choose the Square D LI364001021 when you need dependable, specifications-aligned protection for high-current, three-phase electrical systems. Add it to your toolbox for reliable, code-conscious circuit protection that keeps your operation running smoothly.