Square D BGA36045 45A 3-Pole 347 V Circuit Breaker

Introducing the Square D BGA36045 45A 3-Pole 347 V Circuit Breaker — a compact, dependable overcurrent protection device crafted for 3‑phase power systems. With a 45 amp rating and a 347 V capacity, this breaker is built to shield commercial and light-industrial circuits from overloads and faults, helping you maintain safe, uninterrupted operation.

What sets this model apart is its 3‑pole design, which ensures simultaneous disconnect of all three phases. That means more reliable protection for 347 V three-phase distributions and reduced risk of unbalanced fault currents that can damage equipment or disrupt operations. Designed to fit Square D panels that accept BGA series breakers, this unit makes replacement straightforward and minimizes downtime.

• Current rating: 45 A
• Poles: 3
• Voltage rating: 347 V
• Part number: BGA36045
• Brand: Square D

Ideal use cases include protecting 3-phase feeders and equipment in commercial spaces, data centers, and light-industrial environments that operate on 347 V systems. It’s well-suited for applications such as three-phase motors, compressors, pumps, and distribution feeders where reliable, fast isolation is critical to prevent equipment damage and minimize downtime.

Why this model matters for your electrical setup: the BGA36045 offers targeted protection for 3‑phase circuits specifically rated for 347 V, aligning with common commercial power distribution standards. By using a breaker designed for this voltage and configuration, you gain predictable trip behavior, easier maintenance, and a secure path to safe shutdown during faults.

Practical considerations for use include verifying that your panel accepts BGA series breakers and that the circuit you’re protecting operates at or near the 347 V three‑phase specification. When integrating into existing electrical infrastructure, ensure proper torque and installation practices per standard safety guidelines, and keep spare BGA36045 units on hand for quick replacements to reduce system downtime.