Siemens HFD63B150 - 150 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens HFD63B150, a rugged 3-pole bolt-on molded case circuit breaker designed to protect your branch circuits with precision and reliability. With a 150 A current rating and a 600 V operating capability, this device is purpose-built for dependable protection in panelboards and load centers across residential, commercial, and light industrial settings. It’s not just a breaker—it’s peace of mind for electrical systems that demand consistent performance.

Why the Siemens HFD63B150 stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant connection to the bus, reducing connection loosening over time and helping maintain consistent protection even in busy electrical environments.
• Thermal-magnetic trip unit provides stable, repeatable protection: thermal protection for gradual overloads and magnetic protection for fast short-circuit response, minimizing equipment damage and downtime.
• Three-pole design ensures synchronized protection across all phases, promoting balanced loads and safer system operation.
• 600 V rating supports a wide range of commercial and light industrial circuits, giving you flexibility for diverse electrical layouts.
• OEM-compatible designed to work with matching Siemens load centers and panelboards, simplifying installation, upgrades, and replacements.
• Versatile for multiple sectors suitable for residential, commercial, and light industrial applications, from feeders and branch circuits to motor and control circuits.

Ideal use scenarios

• Upgrading aging panelboards where secure mounting and reliable protection are critical.
• Replacing faulty or obsolete breakers in Siemens-aligned panel systems to maintain coordinated protection.
• Feeding motor loads, lighting circuits, HVAC equipment, and other branch circuits in commercial or light industrial facilities.
• Retrofits and new installations in environments with moderate vibration or demanding duty cycles where connection reliability matters.

Installation and compatibility insights

• The bolt-on mounting style is specifically chosen to maintain a solid connection in panels that experience regular vibration, temperature swings, or routine maintenance access.
• Designed for use in matching OEM Siemens load centers and panelboards, helping you achieve seamless integration and predictable trip performance.
• Best paired with other Siemens protection devices to ensure coherent protection curves and straightforward maintenance across the electrical distribution system.

Technical snapshot

• Manufacturer: Siemens
• Part number: HFD63B150
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 150 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re stocking a commercial service panel, upgrading a residential system, or equipping a light industrial distribution run, the Siemens HFD63B150 delivers dependable, well-coordinated protection.Trust AmpState to provide authentic Siemens breakers that meet your installation needs—with the reliability you expect from a trusted name in electrical protection.