Siemens SND6A100LIG 1000A 3P 600V Circuit Breaker | AmpState

Engineered by Siemens, the SND6A100LIG is a robust 3-pole circuit breaker rated for 1000 A at 600 V. Built to protect panelboards, load centers, and broader electrical distribution networks, this device delivers reliable, predictable protection where it matters most—keeping critical systems online and safely isolated during faults or overloads.

Designed for replacement projects and spare stock, the SND6A100LIG helps you keep your bill of materials aligned with the original part number. By choosing an OEM Siemens part, you simplify maintenance, reduce compatibility risk, and speed up field service when downtime is not an option.

• Part Number: SND6A100LIG
• Manufacturer: Siemens
• Product Type: Circuit Breaker
• Amperage: 1000 A
• Poles: 3
• Voltage: 600 V
• Applications: Suitable for panelboards, load centers, and electrical distribution setups requiring a high-capacity 3-pole protection device
• Availability: Available from AmpState

Why the Siemens SND6A100LIG stands out

Choosing an OEM Siemens circuit breaker for high-demand environments ensures compatibility with established protection schemes and mechanical interfaces in your distribution equipment. The SND6A100LIG is purpose-built to integrate with standard Siemens architectures, delivering consistent performance and lifecycle reliability in industrial and commercial installations. This isn’t a generic substitute—it’s a part designed to meet Siemens’ protection standards and to keep your electrical system running smoothly over time.

Practical use cases and scenarios

• Panelboard and load center refresh: Replace aging or damaged breakers with an exact-match 3-pole, 600 V unit to maintain system integrity and protection coordination.
• Spare parts strategy: Stock the SND6A100LIG to ensure quick, BOM-consistent maintenance that aligns with the original equipment manufacturer (OEM) specifications.
• Complex distribution networks: Use in installations that demand a high-current main protection device, minimizing the risk of mismatched components and downtime.

If you’re unsure about fit or need confirmation that this part matches your exact panel or distribution setup, AmpState offers compatibility support. Message us and we’ll help verify the SND6A100LIG is the right choice for your system, keeping your service confidently on track.