Siemens HHFD63B175 - 175 A, 3-Pole Circuit Breaker | AmpState

Meet the Siemens HHFD63B175—a 175A, 3-pole molded-case circuit breaker engineered to shield panelboards and load centers from overcurrent and short circuits with precision and space efficiency. Built for dependable protection in demanding electrical environments, this device brings Siemens reliability to residential, commercial, and light industrial applications.

• Compact molded-case design maximizes panel space, allowing room for conductors, labeling, and future growth without compromising protection.
• Thermal-magnetic trip unit delivers stable, repeatable protection across temperature variations: the thermal element handles sustained overloads while the magnetic element responds rapidly to short circuits.
• OEM-ready compatibility designed to fit seamlessly with matching Siemens OEM load centers and panelboards for a streamlined, code-compliant installation.
• Versatile protection ideal for branch circuits in residential, commercial, and light industrial settings where reliable, high-current protection is essential.

The HHFD63B175 provides robust protection for feeders and large-draw circuits. With a 3-pole configuration, it is suitable for protecting multi-wire or three-phase loads in panelboards, enabling safer distribution of power to substantial equipment, lighting, HVAC systems, and other high-demand circuits.

Technical snapshot

• Manufacturer: Siemens
• Part Number: HHFD63B175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 175 A
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for installers and facility managers seeking a reliable, OEM-aligned protection solution, the HHFD63B175 from AmpState combines precise trip performance with a compact form factor that fits neatly into dense panel layouts. When you need dependable protection for high-current branches or feeders, this Siemens MCCB delivers consistent protection you can count on.