Siemens CND63B800H - 800 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens CND63B800H — an 800A, 600V, 3-pole bolt-on molded case circuit breaker designed for mission-critical protection in panelboards and load centers. This Siemens part (P/N CND63B800H) combines rugged construction with precise, thermal-magnetic protection to guard branch circuits against overloads and short circuits in residential, commercial, and light-industrial settings.

Why this breaker stands out

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection, maintaining consistent electrical contact even in environments with equipment vibration.
• Thermal-magnetic trip unit provides stable, repeatable protection across temperature variations and delivers fast response to short-circuit events.
• 3-pole configuration is ideal for 3-phase distribution, simplifying integration into modern electrical systems.
• 600V rating supports a wide range of commercial and light-industrial applications, enabling reliable protection for higher-energy circuits.
• OEM compatibility designed to pair with matching Siemens OEM load centers and panelboards for straightforward installation and dependable performance.

Ideal use cases

• Commercial electrical rooms powering HVAC, lighting, pumps, and contactors where robust branch-circuit protection is essential.
• Light-industrial panels and service equipment that require a high-capacity main feeder with precise protection characteristics.
• Replacements in Siemens OEM panelboards, ensuring exact form, fit, and electrical behavior for reliable maintenance and upgrades.

What to expect in operation

The CND63B800H delivers dependable overcurrent and short-circuit protection by combining thermal and magnetic sensing. This means protection stays consistent across varying temperatures and loading conditions, while offering swift interruption when a fault occurs. With bolted mounting, you get a sturdier connection that resists loosening over time, preserving safety and performance in bustling electrical environments.

Technical snapshot

• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 800A
• Voltage rating: 600V
• Poles: 3
• Mounting style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection
• Manufacturer: Siemens
• Part number: CND63B800H

Whether you’re upgrading an existing Siemens system or stocking a reliable part for service calls, the Siemens CND63B800H from AmpState offers a durable, code-resilient solution for high-capacity protection. It’s built to protect valuable equipment and keep the power flowing safely in a wide range of settings.