Square D PFH36100G 100A 3P 600V Circuit Breaker | AmpState

The Square D PFH36100G is a robust 100 A, 3-pole 600 V circuit breaker designed for dependable protection in panelboards, load centers, and electrical distribution networks. Built to support retrofit projects and maintenance planning where keeping the same part number matters, this unit delivers consistent performance in demanding environments.

Why choose the PFH36100G for your three‑phase systems? It combines three essential elements: reliable overload protection for multi‑circuit projects, seamless compatibility with Square D panel ecosystems, and stock availability through AmpState to minimize downtime on critical builds and repairs.

Key features and specifications

• Manufacturer: Square D
• Part Number: PFH36100G
• Product Type: Circuit Breaker
• Amperage: 100 A
• Poles: 3 (three‑pole design for three‑phase distribution)
• Voltage Rating: 600 V
• Ideal for: panelboards, load centers, and general electrical distribution
• Availability: AmpState keeps this exact part number in stock for quick replacements

Practical use cases

• Replacing a failed 3‑pole breaker in commercial or industrial panelboards where 100 A capacity is required.
• Retrofit projects that demand the same PFH36100G part number to maintain system labeling, warranty considerations, and standardized maintenance procedures.
• Upgrading or expanding three‑phase distribution where consistent protection and familiar hardware simplify installation and service planning.

Why this model stands out

Many breakers offer similar specs, but the PFH36100G is a familiar, industry‑standard option for Square D systems. Its three‑pole configuration provides balanced protection across all phases in three‑phase equipment, helping prevent imbalanced faults that could escalate into bigger problems. The 600 V rating ensures suitability for common industrial and commercial distribution needs, while the 100 A capacity meets a wide range of branch circuit requirements.

Beyond raw specs, this breaker is a practical choice for maintenance and inventory management. By choosing the PFH36100G, technicians can align with existing installations, simplify future service calls, and reduce the risk of mismatched parts during retrofits. AmpState supports this part number specifically, so you’re more likely to find an exact replacement quickly, minimizing downtime and keeping projects on schedule.

Installation and compatibility tips

• Verify that your panelboard or load center is designed to accept a PFH family, 3‑pole, 600 V device of this rating.
• Plan for proper electrical clearance and isolation before servicing; follow all safety protocols and your panel manufacturer’s installation instructions.
• Ensure the bus connectors, torque requirements, and mounting align with the panel’s specifications. When in doubt, reference the panel’s labeling or contact AmpState for compatibility confirmation.

If you’re unsure about fit or compatibility with your existing Square D installation, AmpState offers direct assistance to confirm the PFH36100G matches your exact requirements. Message us to verify fit and ensure you’re selecting the right part for your panelboards, load centers, and distribution networks.