Square D | LEL36400LI | Circuit Breaker | 3-Pole

Meet the Square D LEL36400LI 3-Pole Circuit Breaker—built for dependable protection in maintenance, retrofit, and replacement projects where matching specifications truly matter. This 3-pole design ensures balanced interrupting protection across all phases, making it a solid choice for upgrading or modernizing 3-phase panels while preserving system reliability.

The key to a hassle-free replacement is precision. The LEL36400LI part number is the most reliable reference when verifying compatibility, helping you avoid guesswork and ensuring a correct fit within compatible Square D frames and bus configurations. By sourcing with the exact part number, you minimize downtime and keep your electrical system aligned with original design criteria.

• 3-Pole configuration designed for 3-phase applications, delivering coordinated protection across all three conductors.
• Exact part reference LEL36400LI provides a clear, unambiguous compatibility anchor for ordering and cross-checking with your panel documentation.
• Ideal for replacements and retrofits where preserving original panel performance and safety ratings is critical.
• Clear guidance on fit and ratings before ordering helps prevent mismatches and rework.
• Trusted Square D engineering backed by the brand’s emphasis on consistent performance and panel protection.

How to verify compatibility (quick, practical steps)

• Match the line side and load side configuration with your existing panel to ensure proper mounting and bus connection.
• Check the ratings specified for your system and align them with the LEL36400LI’s intended use—ratings must be compatible with your equipment and safety requirements.
• Use the part number LEL36400LI as the primary reference when consulting datasheets or supplier catalogs to confirm frame type and trip characteristics.
• If you’re upgrading from an older model, confirm that the replacement maintains the same protective function and coordination with nearby breakers.

Who benefits most from the Square D LEL36400LI? electrical contractors, facilities managers, and maintenance teams tackling panel upgrades, equipment retrofits, or timely replacements in commercial and industrial environments. With a precise part number and clear guidance for fit and ratings, it’s a practical, lower-risk choice for keeping electrical systems safe and up to date.

Practical usage tips: store the LEL36400LI with your other Square D replacement parts, document the exact part number in your maintenance logs, and always verify panel compatibility before installation. By prioritizing exact reference numbers and documented ratings, you’ll streamline procurement and ensure dependable protection for your 3-phase electrical infrastructure.