Siemens HFXD63B110 110A 3P 600V Circuit Breaker | AmpState

Siemens HFXD63B110 is a robust circuit breaker designed to deliver reliable overcurrent protection in panelboards, load centers, and electrical distribution systems. This 110 A, 3-pole, 600 V device is engineered for durability and steady performance in demanding commercial and industrial environments, helping keep critical power pathways safe and stable.

Key specifications at a glance

• Manufacturer: Siemens
• Part Number: HFXD63B110
• Amperage: 110 A
• Poles: 3
• Voltage: 600 V

Why this Siemens breaker stands out

Designed with retrofit and maintenance in mind, the HFXD63B110 helps you maintain consistent part numbers across panel upgrades or service work. If you’re upgrading older gear or replacing a worn-out breaker, keeping the same part number simplifies ordering, reduces downtime, and ensures compatibility with existing bus configurations and trip characteristics.

Ideal use cases

• Retrofit projects where the part number must stay consistent to match existing documentation and inventory
• Maintenance planning for panelboards and distribution boards that require reliable 110 A protection
• Replacement in commercial and light-industrial distribution systems that operate at standard 600 V

Practical benefits you’ll notice

• Streamlined replacements that align with your current equipment catalog, reducing guesswork during procurement
• Clear compatibility with Siemens panelboards and load centers designed for 3-pole, 600 V protection
• Support from AmpState for fit confirmation—help ensure you’re selecting the exact part you need

How to use and what to expect

Install as part of routine maintenance or during a controlled retrofit to restore reliable protection for your electrical distribution. The 3-pole configuration accommodates multi-branch circuits, providing coordinated shutoff across all phases. For installers and facility managers, ensuring the breaker matches the panel’s bus configuration and trip settings is essential for predictable operation and safety.

Available from AmpState, the Siemens HFXD63B110 is a practical choice when reliability, compatibility, and ease of replacement matter most. If you need help confirming fit or matching a part number to your panel, a quick message will connect you with a specialist who can verify compatibility and keep your project moving.