Square D FA34040G 40A 3-Pole 480 V Circuit Breaker

Introducing the Square D FA34040G 40A 3-Pole 480 V Circuit Breaker—a purpose-built overcurrent protection device engineered for demanding 3-phase power networks in industrial and commercial settings. With a 40-amp nominal rating and a 3-pole configuration, this breaker simultaneously disconnects all live conductors in a fault, helping safeguard motors, drives, and equipment on 480-volt feeders.

• Current rating: 40 A
• Poles: 3
• Voltage rating: 480 V
• Part number: FA34040G
• Brand: Square D

This model shines in protecting 3-phase equipment such as industrial motors, HVAC drives, pumps, and conveyor systems operating at or near 480 V. It delivers reliable interruption during overloads, reducing downtime and minimizing the risk of damage to critical machinery. Ideal for retrofit projects or new installations where a 40 A protection level matches the load profile of a three-phase feeder.

Why choose a 3-pole design for 480 V systems? It ensures coordinated disconnection of all phases in the event of a fault, enhancing safety and reducing arcing risk. The FA34040G is designed for integration with compatible Square D panels and 3-phase distribution schemes, providing a straightforward path to robust, dependable overcurrent protection.

Practical considerations: verify that your panel and wiring are rated for 480 V and three-phase operation, and install by qualified personnel to ensure proper alignment and safe, code-compliant operation. For maintenance, keep note of the 40 A rating as you assess load currents and future expansion of your 3-phase electrical system.