Siemens CED63B125 - 125 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens CED63B125 — a 125 A, 600 V, 3-pole bolt-on molded case circuit breaker built to safeguard your panelboards and loadcenters with dependable, long-lasting protection. Designed for demanding environments, this breaker combines rugged mounting with precise protection to keep electrical systems running smoothly.

Why this breaker stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection that stays solid even in challenging installations.
• Thermal-magnetic trip unit provides stable, repeatable protection against both overloads and short circuits, helping to minimize nuisance trips and protecting sensitive equipment.
• Three-pole configuration supports three-phase circuits, making it ideal for commercial and light industrial panels as well as larger residential installations.
• 600 V rating aligns with standard industrial distribution systems, offering versatility across many electrical layouts.
• 125 A continuous rating handles higher-demand branch circuits without compromising protection or performance.
• OEM compatibility is designed to work with matching Siemens loadcenters and panelboards, ensuring a clean, integrated fit.

Ideal for

• Electricians wiring panelboards in commercial spaces, light industrial facilities, and multi-family residential buildings.
• Upgrading or expanding protective schemes in existing Siemens installations that require reliable 3‑pole protection.
• Applications where vibration or movement could affect connections, thanks to the sturdy bolt-on design.

Practical use cases

• Install as branch-circuit protection in distribution panels serving HVAC, lighting, and power feeds in offices or small factories.
• Integrate into service panels for enhanced overcurrent and short-circuit protection on three-phase circuits.
• Use in retrofit projects where existing infrastructure calls for a robust, compatible Siemens solution.

Technical specifications

• Manufacturer: Siemens
• Part Number: CED63B125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 125 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Compatibility reminder: This breaker is designed to work with matching Siemens OEM loadcenters and panelboards, ensuring a seamless, reliable installation within your existing system.