Square D | LHL26400 | Circuit Breaker | 400A | 2-Pole | 600V

When your electrical system demands robust, high-current protection, the Square D LHL26400 circuit breaker stands up to the challenge. Rated at 400A with a 2-pole configuration and a maximum 600V capacity, this device is built to safeguard large circuits and critical loads in commercial and industrial environments.

The LHL26400 is specifically suited for maintenance, retrofit, and replacement projects where exact specifications matter. Its part number, LHL26400, serves as the most reliable reference for compatibility with Square D panels and assemblies. Important: confirm fit and ratings before ordering to ensure seamless integration with your existing gear.

• Amperage: 400A
• Poles: 2-Pole
• Voltage: 600V
• Best reference for compatibility: LHL26400 — verify against your panel/catalog for exact fit

Ideal for environments where large feeders or main circuits require reliable interruption and coordinated protection, the LHL26400 supports applications such as power distribution feeders, heavy machinery feeds, and critical service panels. It’s particularly valuable during retrofits when upgrading existing installations to higher-current capabilities without changing the panel architecture.

What sets this breaker apart is its precise alignment with Square D panels and parts in the same family. By choosing the LHL26400, you’re selecting a component designed to slot into compatible enclosures and buses with minimal modification, reducing downtime and ensuring consistent performance across your protection scheme.

Practical considerations and tips for use:

• Use in systems where the protected load can approach or require up to 400A, and ensure the downstream wiring is rated accordingly.
• Pair with matching Square D accessories and enclosure features to maintain proper clearance, mounting, and bus engagement.
• Maintain documentation that references the exact part number (LHL26400) to simplify future replacements or audits.
• During maintenance or retrofits, double-check panel compatibility and obtain the correct replacement if panel revisions have occurred since installation.

In short, the Square D LHL26400 circuit breaker is a purpose-built solution for high-current, two-pole protection at 600V. It delivers dependable interruption for demanding circuits while aligning with existing Square D infrastructure—making it a prudent choice for maintenance, retrofit, and replacement projects that prioritize precise compatibility and durable performance.