Siemens LXD63B450HL - 450 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens LXD63B450HL — a robust 450 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to shield panelboards and loadcenters from overcurrent and short-circuit events. Built for dependable performance in demanding environments, this MCCB is a smart choice for commercial spaces, high-load residential panels, and light industrial applications.

• Secure bolt-on mounting for a rigid, vibration-resistant bus connection that stays aligned even in busy electrical panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection against both overloads and short circuits, helping to prevent nuisance trips and equipment damage.
• 3-pole design ensures simultaneous disconnection across all phases, enhancing safety and reliability in three-phase systems.
• Industry compatibility engineered to pair with matching OEM load centers and panelboards, simplifying replacement and upgrades within Siemens ecosystems.
• High-capacity rating 450 A at up to 600 V, making it suitable for large feeders and main circuit protection in balanced power layouts.
• Versatile applications ideal for branch-circuit overcurrent and short-circuit protection across residential, commercial, and light industrial deployments.

The LXD63B450HL is more than a breaker—it's a lifecycle choice for your electrical distribution. Its bolt-on design minimizes bus movement during installation and during operation, while the thermal-magnetic logic provides predictable protection that electricians can rely on when coordinating with other protective devices in your panel. If you’re upgrading an existing Siemens panel or wiring a new commercial or light-industrial system, this 3-pole MCCB offers a precise balance of strong protection and straightforward integration.

Key specifications at a glance

• Manufacturer: Siemens
• Part Number: LXD63B450HL
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage Rating: 450 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Designed for installers who demand reliability and compatibility within Siemens panel ecosystems, the LXD63B450HL is a practical, high-capacity solution for safeguarding electrical systems. For projects requiring solid protection that’s built to last, this bolt-on MCCB from Siemens, available through AmpState, delivers peace of mind and straightforward procurement.