Siemens ET4035 50A 3P Circuit Breaker | AmpState

Meet the Siemens ET4035 50A 3P Circuit Breaker from AmpState—a purpose-built protection device designed for panelboards, load centers, and broader electrical distribution systems. This 3-pole, 50-amp breaker delivers reliable interruption of fault currents across three-phase circuits, helping keep critical equipment safe and uptime assured.

Why this breaker stands out

• Three-pole, 50 A design is ideal for balanced protection in three-phase electrical systems, ensuring all phases are safeguarded simultaneously.
• Part-number stability specifically suited for retrofit work and maintenance planning when you need to preserve the ET4035 designation for documentation and ordering consistency.
• Compatibility with Siemens panelboards and common load centers designed to work within standard Siemens distribution setups, simplifying installation and replacement workflows.
• Focused for reliable circuit protection within electrical distribution networks, helping to prevent overloads and enable rapid isolation during faults.

Practical use cases

• Retrofit projects where existing systems require the ET4035 part number to remain unchanged for compatibility and record-keeping.
• Maintenance planning with a ready-to-install breaker to minimize downtime during service windows and repairs.
• Upgrading aging or existing Siemens-based installations to ensure consistent protection across all three phases.

Need help confirming fit or matching a part number? Message us and we’ll help you confirm fit.

Product details at a glance

• Manufacturer: Siemens
• Part number: ET4035
• Product type: Circuit Breaker
• Amperage: 50 A
• Poles: 3

For anyone maintaining a Siemens-based electrical distribution setup, the ET4035 from AmpState offers a precise, dependable solution that supports reliable protection, easier retrofit planning, and smoother maintenance workflows. Reach out to verify compatibility with your panel configuration or to secure the exact part you need.