Square D | LHB36350 | Circuit Breaker | 350A | 3-Pole | 600V

Meet the Square D LHB36350—a purpose-built protective device for demanding electrical systems. This 350A, 3-pole circuit breaker delivers reliable overcurrent protection in three-phase applications operating up to 600V, making it a precise match for industrial panels and large commercial installations that rely on steady, safe power distribution.

Designed for maintenance, retrofit, and replacement projects, the LHB36350 is a trusted choice when exact specifications matter. Its three-pole construction provides balanced protection across all phases, helping to safeguard equipment, reduce downtime, and simplify system diagnostics in complex power layouts.

Key specifications at a glance

• Amperage: 350A
• Poles: 3-Pole
• Voltage rating: 600V
• Part reference: LHB36350

Why this model stands out

• Exact fit for compatible Square D panels: The LHB36350 is the best reference when aligning with Square D panels that require a 3-pole, 600V device rated at 350A. Before ordering, verify fit and ratings to avoid compatibility issues.
• Robust three-phase protection: With three independent poles, it provides uniform protection across all live conductors, critical for maintaining motor drives, compressors, and other three-phase equipment.
• Industrial-grade reliability: Built to withstand demanding environments typical of manufacturing floors, data centers, and large facilities where consistent power is essential.
• Streamlined retrofits and replacements: When upgrading or replacing aging equipment, this unit aligns with existing Square D infrastructure, helping to minimize modification work and downtime.

Use cases and practical applications

• Retrofit projects in legacy Square D power distribution centers that require 350A, 3-Pole, 600V protection.
• Maintenance upgrades for equipment-intensive facilities such as manufacturing lines, HVAC systems, and large motors.
• New installations in commercial or industrial settings that demand rigorous overcurrent protection with reliable, predictable trip behavior.

Installation and care tips

• Confirm the exact part number (LHB36350) and cross-check your panel’s catalog specifications before purchase.
• Have a licensed electrician perform the installation, ensuring proper torque on connections and adherence to national electrical codes.
• Keep a record of the part number for future maintenance or replacement to preserve system compatibility.

When your project calls for precise, reliable protection in a three-phase, 600V environment, the Square D LHB36350 delivers the dependable performance you need. Use it for essential maintenance, thoughtful retrofits, and seamless replacements—protecting your valuable equipment while keeping downtime to a minimum.