Siemens ET4034 Circuit Breaker, 100A, 3-Pole

Meet the Siemens ET4034 Circuit Breaker, a 100 A, 3-Pole unit built for demanding industrial electrical service, maintenance, and replacement projects. The part number ET4034 is your quick path to compatibility, helping you verify fit against your exact panel or distribution needs.

Why this breaker stands out

• Three-pole protection covers all three phases in a 3‑phase system, enabling reliable fault isolation and safeguarding connected equipment.
• Industrial-grade reliability from Siemens engineering delivers dependable performance in tough environments and during frequent switching events.
• Part-number driven compatibility: Use ET4034 to confirm fit and align with your specific application requirements, reducing guesswork in replacements.
• Streamlined replacement workflow: Designed for straightforward installation in existing industrial panels, minimizing downtime during upgrades or fault replacements.

Ideal for applications such as manufacturing lines, distribution panels, and service upgrades where a robust 100 A, 3-pole breaker is required. This unit is purpose-built for industrial electrical service, maintenance, and replacement projects—always verify compatibility by checking the part number against your application.

Practical guidance

• Power down equipment and follow local electrical codes before replacing a breaker.
• Confirm panel or equipment compatibility by matching the exact part number ET4034 to your circuit configuration.
• If you’re unsure about fit, we can help—send a message to verify compatibility with your specific application.

With Siemens engineering behind it, the ET4034 stands up to the rigors of industrial use while delivering dependable protection for your three-phase loads. Choose this breaker for a reliable, compatible, and replaceable solution designed for professional-grade electrical service and maintenance.