Square D | BGA34100Y | Circuit Breaker | 100A | 3-Pole | 277V

When your 3-phase, 277V electrical system needs a precise drop-in replacement, the Square D BGA34100Y Circuit Breaker stands out for maintenance, retrofit, and replacement projects. With a dedicated 100A rating and a 3-pole design, this unit delivers dependable protection exactly where your Square D installations require it.

• Amperage: 100 A
• Poles: 3-Pole
• Voltage: 277 V

The BGA34100Y is the best reference for compatibility. Before ordering, verify that your panel and circuit meet the 3-pole, 277V configuration and the 100A rating. Using the exact part number helps ensure the breaker fits your bus, aligns with existing components, and preserves the intended operating characteristics of your Square D system.

Why this model is worth choosing

Exact-fit replacement is the key benefit here. By selecting the BGA34100Y, you minimize the guesswork involved in panel servicing and reduce the risk of incompatible substitutes. This breaker is specifically suited for environments where 277V three-phase loads are present—common in commercial lighting circuits and motor-driven equipment—and where a robust 100A protection point is required.

Ideal use cases

• Maintenance or service calls to restore a failed breaker in existing Square D panels
• Retrofits or panel upgrades that specify a 100A, 3-Pole, 277V device
• Spare brow for field service in facilities with 277V three-phase electrical systems

Practical considerations

Because the BGA34100Y is identified by its part number, technicians and procurement teams can quickly verify compatibility across inventory and documentation. Relying on the exact model helps maintain consistent electrical ratings and simplifies ordering, warranty alignment, and future replacements—crucial for uptime in commercial and industrial settings.

Secure dependable protection for your 277V three-phase circuits with the Square D BGA34100Y Circuit Breaker—an exact-fit solution designed to meet retrofit, maintenance, and replacement needs with precision.