Siemens HED43B100 100A 3P 480V Circuit Breaker, Bolt-On | AmpState

Meet the Siemens HED43B100 100A 3P 480V Circuit Breaker — a robust bolt-on protector engineered for reliable circuit protection in panelboards, load centers, and electrical distribution systems. Built to support retrofit work and maintenance planning, it’s the dependable choice when project continuity and part-number consistency matter most.

Why this breaker stands out

• 100 Amp, 3-Poles, 480V— designed to guard three-phase systems, delivering clear protection for demanding electrical environments.
• Bolt-On design for straightforward installation and secure mounting in compatible Siemens panelboards and distribution enclosures.
• Siemens original part with part number HED43B100, ensuring compatibility with existing inventories and service records.
• Ideal for retrofit and maintenance projects where keeping a consistent part number simplifies procurement and planning.
• Support from AmpState— need help confirming fit or matching a part number? We’re ready to assist you in verifying compatibility.

Where it fits and how it helps

This 100A, 3-pole 480V circuit breaker is well-suited for panelboards, load centers, and electrical distribution networks that require reliable trio-phase protection. Its bolt-on mounting accelerates upgrades and replacements in facilities where downtime matters, and its Siemens lineage helps maintain cohesive, easily traceable maintenance records.

Practical use cases

• Retrofit projects in industrial or commercial facilities where part numbers must stay consistent across procurement cycles.
• Maintenance planning sessions that prioritize readily identifiable, Siemens-certified components.
• Upgrading or modernizing electrical distribution in 3-phase 480V systems without reconfiguring existing bus work.

Installation and care tips

• Verify compatibility with your panelboard or distribution enclosure before installation.
• Follow standard safety practices: power down, de-energize circuits, and use proper torque values for mounting hardware.
• Keep the part number tied to your maintenance records to simplify future replacements and ordering.

Ready to secure your electrical distribution with a trusted Siemens solution? Add the Siemens HED43B100 100A 3P 480V Circuit Breaker to your cart and rely on AmpState for expert compatibility confirmation if needed.