Siemens CFD63B080L - 80 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens CFD63B080L, an 80A, 600V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure demanding electrical environments, this device helps keep critical systems up and running with precise protection where it matters most.

Key features and benefits

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing movement and potential arcing in dynamic panel environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads and short circuits, helping to prevent nuisance trips and equipment damage.
• 3-pole configuration offers balanced 3-phase protection, simplifying integration in commercial and light industrial electrical systems.
• 80A, 600V ratings suitable for mid-to-large branch circuits common in residential, commercial, and light industrial applications, ensuring robust protection without oversizing.
• OEM-compatible design is specifically matched to Siemens load centers and panelboards, enabling straightforward replacement and consistent performance.
• Molded case construction combines durability with compact form factor, making it a reliable choice for space-constrained panels.

Ideal use scenarios

• Upgrading or retrofitting existing Siemens panelboards and load centers that require a bolt-on MCCB for reliable branch-circuit protection.
• Protecting multi‑line residential subpanels where 3‑phase balance and solid short-circuit protection are needed in a compact footprint.
• Light industrial and commercial installations where dependable 80A protection helps safeguard motors, lighting drives, HVAC controls, and other critical circuits.
• New-build electrical assemblies that demand a Siemens-compatible, bolt-on solution with precise thermal-magnetic protection characteristics.

Why this matters in real-world electrical installations

The CFD63B080L combines a secure mounting method with a responsive protection mechanism, so you don’t just have a switch—it’s a protection system tuned for stability and reliability. In environments where panel vibration, panel upgrades, or changes in load demand are common, this breaker maintains consistent trip performance, reduces unexpected outages, and simplifies maintenance for technicians familiar with Siemens OEM components.

Compatibility and installation notes

This 3-pole bolt-on circuit breaker is designed for use with matching Siemens OEM load centers and panelboards. Ensure your enclosure is compatible with bolt-on molded case breakers and that the CFD63B080L’s 80A/600V specifications align with your circuit requirements. For best results, pair with Siemens panel components to preserve system integrity, protection coordination, and warranty coverage.

In short, the Siemens CFD63B080L is a purpose-built solution for reliable branch-circuit protection in modern panelboards and load centers, delivering strong current handling, precise short‑circuit response, and seamless OEM compatibility—ideal for residential, commercial, and light industrial electrical layouts that demand dependable, long‑lasting protection.