Square D LH36200 200A 3-Pole 600 V Circuit Breaker

Meet the Square D LH36200 200A 3-Pole 600 V Circuit Breaker — a purpose-built protection device designed to safeguard three-phase electrical systems in commercial and industrial environments. With a 200 A current rating and a robust three-pole configuration, this breaker provides reliable protection for demanding power distributions up to 600 V.

Why this breaker stands out for professionals who design, install, and service electrical systems: it delivers dependable interruption of fault currents to protect motors, drives, pumps, and other heavy loads, helping reduce downtime and equipment damage. The LH36200 is built to fit into standard Square D panel configurations, making replacement and upgrade projects smoother and more predictable.

Key benefits

• Three-pole protection supports balanced outage response across all phases in a three-phase system, enhancing overall protection for three-phase equipment.
• 200 A rating provides ample capacity for mid-size commercial and light industrial circuits while maintaining reliable protection against overloads.
• 600 V maximum voltage compatibility covers a wide range of industrial distribution networks, from equipment rooms to service entrances.
• Specific part identity via part number LH36200 ensures accurate replacement, compatibility, and consistent performance within Square D panels.
• Solid, field-ready design intended for use in busy electrical environments where dependable protection is essential.

Ideal use cases

• Main protection for three-phase motor circuits in manufacturing floors, HVAC systems, and conveyors.
• Panelboard upgrades or replacements in commercial buildings where three-phase distribution is standard.
• Protection in power distribution setups that operate at up to 600 V, helping to prevent cascading equipment failures.

Compatibility and installation considerations

When selecting a replacement or new installation, verify that the panel accepts 3-pole, 200 A devices and that the LH36200’s electrical characteristics align with your system requirements. Use as part of a properly rated protection scheme to minimize nuisance trips and ensure coordinated protection with other devices in the same network.

Practical insights

For technicians, keeping a stock of proven, manufacturer-approved breakers like the LH36200 can simplify maintenance schedules and accelerate service calls. The clear alignment between the part number, current rating, pole count, and voltage rating helps ensure you’re choosing the correct unit the first time, reducing downtime and rework in critical facilities.