Square D FA32100G 100A 3-Pole 240 V Circuit Breaker Potential Transformer

The Square D FA32100G 100A 3-Pole 240 V Circuit Breaker Potential Transformer is a purpose-built protective device designed for reliable, multi-phase power distribution. With a 100 amp current rating and a 3-pole configuration, this unit provides balanced protection across all phases, helping to safeguard motors, transformers, and other critical loads in commercial and light industrial panels. The 240 V rating aligns with common three-phase distribution networks, making it a practical choice for many panel upgrades and replacements.

Why the FA32100G stands out

• Three-pole protection ensures coordinated shutdown across all phases, reducing the risk of unbalanced faults and equipment damage.
• 100 A current rating supports substantial loads such as HVAC equipment, pumps, and distribution feeders without unnecessary nuisance trips.
• 240 V nominal rating suits standard three-phase electrical systems, optimizing compatibility with existing panelware and wiring practices.
• Part Number FA32100G provides precise identification for replacements, spares, and service documentation within Square D ecosystems.
• Potential Transformer capability offers seamless integration with monitoring, metering, and control circuits, enabling enhanced visibility and protection coordination in your electrical system.

Who benefits from this circuit breaker

• Facilities managers and electricians upgrading or stocking spare parts for commercial and light industrial panels built around Square D hardware.
• Engineers designing 3-phase distribution with built-in metering and protective monitoring requirements.
• Techs maintaining motor control centers, UPS rooms, data centers, and manufacturing facilities where reliable phase protection is essential.

Practical use cases and scenarios

• Replacement of an aging or failed 3-pole 100A breaker in a service panel to restore reliable protection for three-phase feeders.
• Integration in panels that require potential transformer-friendly protection schemes for remote monitoring and fault indication.
• Spare in inventory for quick response in industrial settings where downtime costs are high and fast part replacement is critical.
• Retrofits in facilities transitioning from single- to three-phase distribution, maintaining consistent protection without rewiring beyond the panel level.

Installation and care tips

• Ensure the breaker is the correct type and compatible with your Square D panel model before installation.
• Verify wiring arrangements match the 3-pole configuration and torque specifications for secure, reliable connections.
• Incorporate the potential transformer pathway according to your monitoring and metering plan to maximize visibility of electrical conditions.
• Have a qualified electrician perform installation and testing to confirm proper operation and coordination with upstream protection devices.

Whether you’re stocking parts for steady operations, replacing a worn-out protective device, or equipping a new panel with precise three-phase protection, the Square D FA32100G 100A 3-Pole 240 V Circuit Breaker Potential Transformer delivers dependable performance and thoughtful compatibility within Square D’s protective ecosystem. Its combination of robust protection, three-phase coordination, and metering-ready design helps you manage risk, reduce downtime, and keep critical equipment running smoothly.