Square D FHB360801021 80A 3P Circuit Breaker, Shunt Trip | AmpState

Square D’s FHB360801021 80A 3P Shunt Trip Circuit Breaker is built for everyday electrical protection in panelboards, load centers, and distribution panels. This 3-pole device combines reliable overcurrent protection with a remote trip option, making it a dependable choice for installation and maintenance workflows.

The shunt-trip capability provides remote disconnection, a critical safety feature for controlled environments, manufacturing lines, and any setup requiring quick isolation from a central control point. With an 80-amp rating across three poles, this breaker is designed to safeguard high-load, three-phase circuits without compromising reliability.

Engineered to align with the original hardware and BOM requirements, this part simplifies procurement and stocking by ensuring BOM integrity and seamless replacement. It’s ideal for projects where matching the exact part number is essential to maintain system performance and compatibility.

• Amperage: 80 A
• Poles: 3 (three-phase)
• Applications: Panelboards, load centers, and electrical distribution
• Feature: Shunt-trip remote tripping for safe, centralized shutdown
• Manufacturer: Square D
• Part number: FHB360801021
• Use case: Replacement projects and BOM-aligned spare stock

In practical terms, this breaker reduces maintenance rework by matching the original form factor, trip characteristics, and electrical ratings of your existing equipment. The 3-pole design ensures balanced protection across three-phase circuits, enabling safer, more predictable shutdowns when required.

Useful scenarios include upgrading or replacing worn breakers in commercial or industrial panelboards, building a reliable spare stock that remains true to the original BOM, and enabling remote shutoff in safety-critical applications or process-control environments.

Need help confirming compatibility? AmpState offers guidance to verify fit and ensure you’re ordering the correct part for your installation. Reach out with your panel model or service requirements, and we’ll assist you in securing a precise match.