Siemens HFD63B080 - 80 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens HFD63B080 is a robust 80A, 600V, 3-pole bolt-on molded case circuit breaker designed to protect branch circuits in panelboards and load centers. With a thermal-magnetic trip unit, it delivers stable, repeatable protection that responds promptly to faults while preventing nuisance trips during normal operation.

• Secure bolt-on mounting: A rigid bus connection minimizes movement and vibration, helping maintain a reliable feed even in environments with equipment that generates dynamic loads.
• Thermal-magnetic trip unit: Combines precise thermal overload sensing with fast magnetic interruption for high-current faults, delivering dependable protection for both everyday use and demanding transients.
• OEM compatibility: Engineered to drop directly into Siemens OEM panelboards and load centers, ensuring seamless replacement or upgrades without adapters or modifications.
• Versatile application: Suitable for residential, commercial, and light industrial panels, making it a practical choice for a range of electrical installations.

Technical specifications

• Manufacturer: Siemens
• Part Number: HFD63B080
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 80A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

• Install or replace 3-pole protection in Siemens panelboards to safeguard three-phase branch circuits in commercial spaces or light industrial equipment.
• Upgrade existing feeders to handle higher loads while preserving OEM compatibility with Siemens load centers.
• Use in new construction projects where a reliable, vibration-resistant breaker helps maintain continuous service in cabinets and distribution panels.

Installation & compatibility tips

Ensure the panelboard accepts 3-pole, 80A bolt-on breakers and that wiring and torque follow Siemens guidelines and local electrical codes. For best results, secure the breaker firmly to the bus and verify a solid, vibration-free fit before energizing the system. If you’re replacing an older device, confirm the trip characteristics align with your protection strategy to maintain consistent protection performance.

Why choose AmpState

AmpState delivers authentic Siemens components, shipped promptly and backed by product-specific support. The Siemens HFD63B080 integrates with compatible panelboards and load centers to deliver predictable protection, long service life, and ease of maintenance in commercial and light industrial electrical installations.

Designed for reliability in demanding environments, this 3-pole bolt-on breaker helps you protect critical circuits with confidence—today and for years to come.