Siemens HFD63B175L - 175 A, 600 V, 3-Pole Circuit Breaker | AmpState

Siemens HFD63B175L is a 175A, 600V, 3-pole molded-case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a compact molded-case footprint, this breaker helps you maximize panel space without compromising safety or reliability. Its thermal-magnetic trip unit provides stable, repeatable protection across a wide range of fault conditions, so you can trust it to interrupt faults quickly and cleanly when they happen. Why this breaker stands out - Space-efficient molded-case design that fits tighter panel layouts and simplifies panel planning. - Thermal-magnetic trip unit combines thermal overload sensing with magnetic instantaneous trip for fast, reliable response to short circuits. - 3-pole configuration ideal for 3-phase feeders and panelboards that power commercial and light-industrial equipment. - 175A continuous rating makes it suitable for mid-size branch circuits and feeders, reducing the need for oversizing. - OEM-friendly compatibility with Siemens panelboards and load centers to ensure proper fit, labeling, and trip characteristics. - Built for residential, commercial, and light-industrial environments where dependable protection is non-negotiable. Ideal applications - Subpanels and service panels in office buildings, retail spaces, and light manufacturing facilities. - Branch-circuit protection for three-phase feeds in commercial equipment rooms and industrial control panels. - Replacement or upgrade in Siemens-integrated electrical systems to preserve intended trip curves and coordination with other protection devices. Technical specifications at a glance - Manufacturer: Siemens - Part number: HFD63B175L - Type: Thermal-magnetic molded case circuit breaker - Amperage rating: 175A - Voltage rating: 600V - Number of poles: 3 - Application: Branch circuit overcurrent and short-circuit protection in panelboards and loadcenters What it means for you - Consistent performance: The combination of a thermal element and magnetic trip ensures reliable interruption for both overloads and sudden short circuits, reducing damage to downstream equipment. - Seamless integration: When paired with matching Siemens OEM panels, you maintain labeling consistency, trip curves, and a cohesive protection scheme across your installation. - Long-term value: A durable molded-case design paired with precise trip coordination supports quieter operation and dependable service life in everyday commercial and light-industrial use. Practical tips - Verify panelboard compatibility: Use with Siemens panels and load centers designed to accept HFD63-series breakers to ensure proper fit and labeling. - Plan for three-phase loads: Use this 3-pole breaker for feeders and circuits that require simultaneous protection of all three phases. - Follow install guidelines: Adhere to manufacturer wiring diagrams and torque guidelines from the panelboard documentation to ensure a secure, reliable connection. Available now from AmpState, the Siemens HFD63B175L 175A, 600V, 3-pole molded-case circuit breaker offers a precise, space-conscious solution for protecting your most important electrical circuits. Add it to your panel today to safeguard your system with Siemens’ trusted protection and OEM compatibility.