Siemens CND63B100 - 1000 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens CND63B100 is a 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and loadcenters. With a robust 1000A rating at 600V, it’s built to handle demanding commercial and light industrial applications while keeping residential systems safe and compliant.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays tight in demanding environments, reducing the risk of loose connections over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, combining overcurrent sensing with fast response to short circuits to minimize damage and downtime.
• 3-pole configuration protects three conductors in 3-phase systems, ensuring coordinated protection across all phases for reliable power distribution.
• High amperage capacity—1000A—to support large feeders and heavy-load panels common in commercial spaces and light-industrial setups.
• 600V voltage rating makes it compatible with a wide range of distribution schemes and panelboard architectures used in professional environments.
• OEM compatibility designed to align with Siemens load centers and panelboards, enabling straightforward installation without custom adapters or modifications.
• Versatile applications suitable for residential, commercial, and light industrial protection needs, providing a single, reliable solution across projects.

Technical specifications

• Manufacturer: Siemens
• Part Number: CND63B100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 1000A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and scenarios

• Upgrading service equipment in commercial facilities with high-current feeders where robust, reliable protection is essential.
• Adding protection to panelboards in light industrial spaces that experience frequent inrush or surge conditions.
• Replacing aging or incompatible breakers in Siemens OEM load centers to maintain optimal performance and warranty integrity.
• Installing in 3-phase distribution layouts where strict phase protection and coordinated trip characteristics improve overall system safety.

Why this matters

• Unique bolt-on design minimizes vibration-induced loosening, promoting long-term reliability in harsh environments.
• The thermal-magnetic mechanism provides precise trip thresholds, reducing nuisance trips while preserving circuit safety during faults.
• OEM-compatible with Siemens equipment simplifies sourcing, stock management, and on-site installation, helping projects stay on schedule.
• High current capability paired with a solid 3-pole configuration makes it a practical, future-proof choice for evolving electrical loads.

When you’re configuring panelboards and loadcenters for dependable, code-compliant protection, the Siemens CND63B100 stands out for its combination of rugged mounting, precise protection, and seamless compatibility. It’s a purpose-built solution for demanding environments where uninterrupted power distribution and rapid fault containment matter most.