Siemens | FJ3B200 | Circuit Breaker | 3-Pole

Siemens FJ3B200 is a purpose-built 3-Pole circuit breaker designed for dependable protection in Siemens electrical systems. This unit shines in maintenance, retrofit, and replacement scenarios where exact specifications and seamless compatibility matter most.

• 3-Pole configuration delivers robust multi‑phase protection, simplifying wiring for typical 3‑phase panels and ensuring coordinated operation across three lines.
• Designed for the Siemens ecosystem to align with existing Siemens panels, breakers, and bus interfaces for reliable performance and straightforward installation.
• Part number FJ3B200 as the definitive compatibility reference—use this when confirming fit for replacements or retrofits.
• Fit and ratings first—verify the breaker’s amperage rating and trip characteristics against your panel labeling and Siemens documentation before ordering.
• Ideal for maintenance, retrofit, and replacement in compatible Siemens installations, helping you minimize downtime while preserving system protection.

Practical use cases

Use the FJ3B200 when you need a reliable, Siemens‑spec replacement or upgrade in a three‑pole configuration. It’s well-suited for facilities where downtime matters and compatibility with existing Siemens infrastructure is essential—ensuring consistent protection, predictable trip behavior, and easy cross‑reference with your current part library.

Why choose this over generic alternatives

Choosing a Siemens‑brand, 3‑Pole breaker with the exact part number ensures seamless electrical characteristics, mounting alignment, and long‑term reliability within Siemens panels. By sticking to the FJ3B200 reference, you reduce guesswork during repairs and retrofits, keep maintenance time to a minimum, and maintain system protection that your equipment was designed to rely on.

Buying tips

Before purchasing, double‑check that the panel is intended for Siemens FJ3B200 replacements and that the available ratings match your existing load requirements. Keep the part number handy as your primary compatibility checkpoint, and consult your panel labeling to confirm fitment and trip specifications.