ABB S203-K10 10A 3P 480V Circuit Breaker | AmpState

Meet the ABB S203-K10 — a purpose-built circuit breaker designed for dependable protection in panelboards, load centers, and broader electrical distribution networks. This 10 A, 3-pole unit is ideal for three-phase systems and is particularly valuable when you’re performing retrofit work or maintenance and need to keep the exact part number consistent across installations.

Key specifications

• Manufacturer: ABB
• Part number: S203-K10
• Product type: Circuit Breaker
• Amperage rating: 10 A
• Poles: 3
• Voltage rating: 480 V

Why it matters for your system

Three poles ensure reliable protection across all phases in a 3-phase distribution network, while the 480 V rating aligns with many commercial and industrial electrical installations. Keeping the same part number (S203-K10) across retrofit projects minimizes configuration changes and reduces the risk of mismatches during maintenance.

Best-use scenarios

• Retrofit projects where equipment compatibility and part-number consistency are critical
• Maintenance planning for panelboards and load centers requiring predictable replacement components
• Protection of 3-phase distribution lines in commercial facilities

Availability and support: This ABB circuit breaker is available from AmpState, with expert assistance to confirm fit or match a part number across multiple sites. If you’re unsure about compatibility, simply message us and we’ll help verify the correct unit for your exact panel configuration.

Choose the ABB S203-K10 for dependable trip protection, straightforward installation, and consistent part-numbering that streamlines procurement and service planning in busy electrical environments.