Square D | RGA36100CU44A | Circuit Breaker | 1000A | 3-Pole | 600V

Meet the Square D RGA36100CU44A — a rugged, high-capacity circuit breaker built for demanding industrial environments. With a 1000A rating and a 3-pole design, this unit is purpose-built to protect large three-phase feeders operating up to 600V, delivering reliable interruption and enhanced safety for your power system. Whether you’re performing maintenance, retrofitting an existing installation, or replacing a worn breaker, this model provides a precise, compatible fit when the part number is your reference point.

Why this model stands out

• Exact compatibility: The part number RGA36100CU44A is the best reference for ensuring you’re selecting the right device for your Square D panels and bus configurations, reducing guesswork during retrofit or replacement.
• Three-pole protection: Designed for 3-phase systems, it ensures coordinated interruption across all phases, helping to prevent unbalanced loads and equipment damage.
• High-current capability: With a 1000A ampacity, it’s suited for large feeders, heavy machinery, and critical power circuits that demand robust protection.
• 600V suitability: Ideal for industrial distribution applications, motor circuits, and commercial power systems that operate at or near 600V.
• Maintenance-friendly retrofit: Streamlines replacement and upgrades by matching established Square D specifications, minimizing downtime and compatibility questions.

Key specifications at a glance

• Amperage: 1000A
• Poles: 3-Pole
• Voltage: 600V

Ideal use cases

• Retrofits and replacements in industrial distribution panels that service heavy machinery and large motors.
• Maintenance projects where a precise, compatible 3-pole 600V breaker is required to restore system protection quickly.
• New installations in facilities with high-demand three-phase loads where reliable overcurrent protection is essential.

Compatibility and installation guidance

Before ordering, confirm fit and ratings to avoid mismatches. The RGA36100CU44A is the most reliable reference for compatibility with Square D panels and related electrical assemblies. Compare your panel’s catalog number and bus configuration to ensure a seamless fit. For best results, have a qualified electrician verify torque specifications and mounting compatibility during installation.

What to expect in operation

This breaker is designed to protect expensive equipment and minimize unplanned outages by reliably interrupting fault currents in a 600V three-phase system. Its robust construction supports sustained operation in demanding environments, contributing to safer startups, smoother maintenance windows, and longer service life for connected loads.