Siemens CFD63B175 - 175 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens CFD63B175 is a rugged 3-pole, 175A, 600V bolt-on molded case circuit breaker designed to safeguard critical branch circuits in panelboards and load centers. Built for environments where panels endure vibration or movement, this unit uses secure bolt-on mounting to deliver a rigid, vibration-resistant bus connection that stays locked in place over time.

Key features that set this breaker apart:

• Thermal-magnetic trip unit combines a responsive thermal element with an instantaneous magnetic trip, delivering stable, repeatable protection for both overloads and short circuits.
• Bolt-on mounting provides a solid, non-loosening connection, reducing nuisance trips and ensuring long-term reliability in service panels and distribution boards.
• OEM-load center compatibility designed to pair seamlessly with matching Siemens panelboards and load centers, making replacements straightforward and maintenance-friendly.
• 3-pole construction ideal for three-phase circuits or shared-neutral configurations common in commercial and light industrial layouts.
• High-current, high-voltage rating 175A at up to 600V, delivering robust protection for demanding branch circuits without compromising sensitivity or speed.
• Durable molded-case design engineered to endure everyday electrical service conditions while providing reliable insulation and arc-quenching performance.

Real-world value you can count on

In residential, commercial, or light industrial settings, protecting feeders, HVAC controls, lighting, and motor circuits is crucial. The CFD63B175 excels where panels face regular activity and potential vibrational stress. Its combination of a secure mounting approach and a dependable thermal-magnetic trip curve means fewer troubleshooting calls and more consistent protection for your most important loads.

Ideal use scenarios

• New construction or retrofit projects in panelboards and load centers that require reliable, OEM-compatible protection.
• Panel upgrades in service rooms or equipment closets where vibration resistance enhances long-term reliability.
• Three-phase distribution schemes in small to mid-size commercial spaces needing solid short-circuit and overload protection.

Technical snapshot

• Manufacturer: Siemens
• Part Number: CFD63B175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 175A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection