Siemens CJD63B200 - 200 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens CJD63B200 is a purpose-built, 200 A, 600 V, 3-pole bolt-on molded case circuit breaker (MCCB) designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for resilience in demanding environments, it combines robust mechanical mounting with precise electrical protection to keep commercial, light industrial, and residential systems safe and operating smoothly.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection that minimizes connection looseness and arc risks, helping maintain consistent protection even in dynamic installations.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by quickly responding to both overloads and short circuits, reducing the likelihood of nuisance trips while safeguarding downstream equipment.
• Three-pole design: Ideal for three-phase systems common in commercial and light industrial settings, ensuring coordinated protection across all hot conductors.
• High-performance rating: 200 A current rating with a 600 V maximum voltage rating makes it suitable for main distribution or branch protection in a wide range of panels.
• OEM-compatible installation: Engineered to pair with matching Siemens OEM load centers and panelboards for seamless fit, reliable operation, and straightforward replacement.
• Versatile applicability: Suitable for residential, commercial, and light industrial applications where compact, dependable overcurrent protection is required.

Why this Siemens CJD63B200 matters for your panel

When upgrading or maintaining distribution panels, a bolt-on MCCB like the CJD63B200 offers a robust, serviceable solution. The bolt-on approach creates a solid mechanical bond to the panel bus, which is especially advantageous in installations with higher vibration or in demanding environments. The thermal-magnetic trip unit reduces downtime by delivering accurate, predictable tripping behavior, so you can rely on consistent protection without overreacting to temporary surge events.

Who should consider this breaker?

Ideal for electrical professionals and facilities managers responsible for renovation, expansion, or preventative maintenance in commercial spaces, light-industrial facilities, and residential builder projects that require dependable 3-phase protection. If you’re replacing an aged MCCB or integrating a Siemens-compatible load center, the CJD63B200 provides a precise fit with proven performance.

Technical snapshot

• Manufacturer: Siemens
• Part Number: CJD63B200
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage: 200 A
• Voltage: 600 V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and load centers

For reliable, long-term protection that aligns with Siemens panel systems, the CJD63B200 offers a tangible balance of mechanical robustness and precise electrical performance. This is the bolt-on solution designed to keep your three-phase installations safe, compliant, and easy to service.