Siemens HHFXD63B080 - 80 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens HHFXD63B080 — a dependable 3-pole, 80A, 600V bolt-on molded case circuit breaker designed to safeguard your electrical system with precision. Engineered for branch circuit overcurrent and short-circuit protection, this unit is purpose-built for panelboards and load centers, delivering reliable performance where it counts.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain consistent electrical contact even in environments with movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection by accurately responding to both overloads and short circuits, reducing nuisance trips and protecting connected equipment.
• OEM-compatible design is built to integrate seamlessly with matching Siemens load centers and panelboards, simplifying installation and future maintenance.
• Versatile application suitable for residential, commercial, and light industrial settings, offering flexibility across multiple project types.

Technical specifications

• Manufacturer: Siemens
• Part Number: HHFXD63B080
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 80 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical use and installation insights

Whether you’re upgrading an existing Siemens installation or building out a new panelboard, the HHFXD63B080 provides dependable protection with a robust mounting method that minimizes connection issues caused by vibration or movement. Its thermal-magnetic trip design means protection scales with load and fault conditions, helping to prevent damage from both overloads and short circuits. This breaker is particularly well-suited for service entrances, distribution panels, and subpanels in spaces where reliable, long-term performance is essential.

Who it's ideal for

Project engineers, facilities managers, electricians, and installers who require a trusted, OEM-compatible solution for protecting high-amp branches in residential complexes, small to medium commercial spaces, and light industrial facilities will find the HHFXD63B080 aligns with their standards for safety and reliability.

Why choose this option over general-purpose breakers

Unlike generic protectors, this Siemens model is engineered to pair with Siemens panelboards and load centers, delivering optimal fit, electrical contact, and coordinated protection. The bolt-on mounting minimizes bus bar movement, while the thermal-magnetic trip unit offers precise response characteristics tailored to real-world load profiles, helping you avoid unnecessary trips and downtime.