Siemens 5SJ4102-7HG40 2A 1P 240V Circuit Breaker | AmpState

Meet the Siemens 5SJ4102-7HG40 2A 1P 240V Circuit Breaker — a compact, reliable safeguard designed specifically for panelboards, load centers, and electrical distribution systems. This genuine Siemens part is tailored for accurate replacement work and seamless BOM alignment, ensuring your electrical system stays true to the original specifications.

Why this breaker stands out

• Exact original part number — 5SJ4102-7HG40 ensures you stay aligned with your BOM and documentation, reducing mismatch risks during upgrades or repairs.
• 2 A, 1-pole configuration — precisely protects single-phase branches without unnecessary tripping, ideal for small circuits and control lines.
• 240V nominal rating — matches standard residential and light commercial distribution requirements, providing dependable surge and fault protection within typical electrical systems.
• Genuine Siemens performance — built to meet Siemens’ stringent reliability standards, offering dependable operation and long service life in everyday panel environments.
• Ready for replacement and stocking — an excellent choice for spare parts inventory, helping you reduce downtime when maintenance windows arrive.

Ideal use cases

• Replacement projects where the original BOM specifies 5SJ4102-7HG40, ensuring plug-and-play compatibility with existing panelboards and load centers.
• Spare parts stocking to minimize downtime in electrical distribution setups, especially in facilities that rely on quick, accurate part swaps.
• Electrical distribution protection for small, single-phase circuits where a 2 A rating is appropriate.

Compatibility & fit

This part is manufactured to the Siemens specifications for the 5SJ4102-7HG40 series. If you’re unsure about compatibility with your panel model, AmpState can assist in confirming fit and ensuring you get the correct replacement part for your system.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: 5SJ4102-7HG40
• Product Type: Circuit Breaker
• Amperage: 2 A
• Poles: 1
• Voltage: 240V

Available now from AmpState, this 5SJ4102-7HG40 circuit breaker delivers precise protection for critical circuits while preserving your original electrical architecture. Whether you’re performing a targeted replacement or building a ready-to-fire spare inventory, this part delivers the exact fit and reliable performance your distribution system depends on.