Siemens MXD63S800 A - 800 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens MXD63S800A—an 800A, 600V, 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch-circuit protection in panelboards and load centers. The bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain consistent protection even in environments where equipment experiences movement or vibration. A thermal-magnetic trip unit offers stable, repeatable protection against both overloads and short circuits, reducing nuisance trips and enhancing system reliability. Designed to integrate seamlessly with matching Siemens OEM panelboards and load centers, this breaker is a practical, scalable choice for modern electrical installations.

Key advantages

• Secure bolt-on mounting: creates a rigid, vibration-resistant connection that stays tight over time, improving long-term reliability in demanding panels.
• Thermal-magnetic trip unit: delivers fast, coordinated protection for short circuits while accommodating normal inrush, minimizing unnecessary trips.
• 3-pole protection: ensures balanced phase protection and synchronized trip behavior across all conductors.
• 600V rating for versatile use: suitable for a wide range of commercial and light industrial circuits.
• 800A amperage rating: handles high-current branch circuits and serves as robust protection in larger panel configurations.
• OEM compatibility: designed to pair with Siemens load centers and panelboards for straightforward upgrades and maintenance.
• Versatile application: ideal for residential, commercial, and light industrial environments where reliable overcurrent protection is essential.

Ideal use cases

• Main protection in service panels for large-scale electrical loads in commercial facilities.
• Branch-circuit protection in panelboards that require secure, vibration-resistant connections in busy electrical rooms.
• Upgrades or replacements in Siemens-compatible installations where coordinated protection and compatibility matter.
• Load centers or panelboards in environments with periodic vibration or movement, where a solid mounting solution improves reliability.

Technical specifications

• Manufacturer: Siemens
• Part Number: MXD63S800A
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 800A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection