Siemens CFD63A250 - 250 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens CFD63A250 is a 3-pole, 250A, 600V bolt-on molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Available through AmpState, this unit is built to withstand the realities of residential, commercial, and light industrial environments where dependable protection and straightforward installation matter.

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection to maintain consistent electrical contact and reduce connection wear over time.
• Thermal-magnetic trip unit: combines precise thermal overload sensing with fast magnetic trip for repeatable, dependable protection across varying loads and temperatures.
• OEM-compatible design: engineered to integrate with matching Siemens OEM load centers and panelboards, simplifying installation and ensuring compatible operation within your existing system.
• Three-pole configuration: ideal for 3-phase applications common in commercial and light industrial settings, delivering robust protection for each phase.
• Versatile protection: perfect for protecting branch circuits, serving as a reliable upgrade or replacement in panelboards and load centers while handling demanding electrical environments.

Why it matters in practice: In real-world deployments, a solid bolt-on connection minimizes resistance at the bus, reducing heating and potential arcing. The thermal-magnetic trip mechanism provides stable, predictable responses to overloads and short circuits, helping protect wiring, devices, and occupants. This breaker is designed to be a straightforward, durable choice when you need dependable 250A, 600V protection for a 3-phase system.

Technical snapshot:

• Manufacturer: Siemens
• Part Number: CFD63A250
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 250A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for electricians and facilities managers upgrading or maintaining panelboards and load centers, the CFD63A250 provides a concrete, field-ready solution for reliable 3-phase protection. Choose this Siemens unit for seamless compatibility, durable performance, and clear protection where it matters most.