Square D | HRA36100U31X | Circuit Breaker | 100A | 3-Pole | 600V

Meet the Square D HRA36100U31X Circuit Breaker—a robust 100-amp, 3-pole protective device designed for 600-volt systems. Built for maintenance, retrofit, and replacement projects, this unit helps you keep critical electrical infrastructure safe and reliable without guessing on compatibility.

• Amperage: 100 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Part reference: HRA36100U31X — the best reference for compatibility
• Ideal use: maintenance, retrofit, and replacement in existing installations

The 3-pole design is purpose-built for three-phase circuits, providing coordinated protection across all conductive paths. The 600V rating supports industrial or commercial power distribution environments where higher voltage operation is required, while the 100A rating suits feeder lines and panel circuits that demand solid, reliable protection without frequent tripping.

Fit and compatibility are critical. Before ordering, confirm fit and ratings for your panel or equipment. The part number HRA36100U31X is the most reliable reference to ensure you’re selecting the exact device your installation requires.

Practical usage scenarios include:

• Replacing a worn or failed breaker in a three-phase 600V distribution panel that requires a 100A, 3-pole device
• Retrofit projects where existing hardware specifies the HRA36100U31X part number for exact compatibility
• New installations in industrial environments where 600V service and 3-pole protection are required

Choosing a genuine Square D breaker like the HRA36100U31X delivers reliable protection, straightforward compatibility, and peace of mind for your electrical distribution system.