Siemens | HLXD63B350L | Circuit Breaker | 350A | 3-Pole | 600V

Engineered by Siemens for demanding electrical environments, the HLXD63B350L is a robust 350A, 3-pole circuit breaker rated for 600V. Designed to protect feeders and distribution panels in industrial and commercial settings, it delivers reliable overcurrent protection where it matters most.

Why this exact HLXD63B350L stands out

Choosing the HLXD63B350L means selecting a part that aligns precisely with your existing Siemens equipment. The part number is the most dependable reference for compatibility, ensuring a seamless fit in panels, switchgear, and related assemblies without guesswork.

Key specifications

• Amperage: 350 A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: HLXD63B350L

Ideal applications and use cases

Perfect for maintenance, retrofit, or replacement projects, this circuit breaker is suited to:

• Industrial distribution panels that require high-current protection at 600V
• Retrofits where matching specs prevent compatibility issues and downtime
• New installations in systems designed around Siemens HLXD63B-series components
• Critical circuits in commercial facilities that demand reliable, repeatable protection

What problems it solves

• Prevents electrical faults from cascading into costly outages by providing precise overcurrent protection at 350 A
• Eliminates compatibility guesswork with Siemens panels through exact part-number alignment
• Reduces maintenance downtime by using a proven, factory-rated component designed for long service life in demanding environments

Installation and compatibility tips

Before you order, verify that your equipment is configured for a 3-pole, 600V protection device with the same mounting footprint as the HLXD63B350L. Keep the HLXD63B350L as your reference part number to ensure a precise match in replacement scenarios, retrofits, or panel updates.

Why choose Siemens for your protection needs

Siemens brings decades of experience in industrial electrical protection, delivering components that maintain system integrity, accuracy, and reliability. The HLXD63B350L embodies that commitment, offering consistent performance across demanding applications and helping you minimize downtime while maintaining safety standards.