Siemens 3VA5140-5EF31-0AA0 40A 3P 600V Circuit Breaker | AmpState

Meet the Siemens 3VA5140-5EF31-0AA0, a purpose-built circuit breaker engineered for reliable protection in panelboards, load centers, and electrical distribution systems. With a 40 A rating, three poles, and a 600 V maximum, this breaker is ready to safeguard three‑phase circuits in a wide range of commercial and industrial applications.

Built for everyday electrical work and retrofit projects, this part number remains consistent even as you plan maintenance or panel upgrades. That means fewer compatibility headaches and faster, smoother replacements when service is required. Available through AmpState, it’s a practical choice for technicians who value reliability and stock consistency.

• Three-pole protection handles three-phase systems up to 600 V, providing coordinated interruption for balanced loads.
• 40 A rating delivers appropriate overcurrent protection for common distribution feeders and branch circuits.
• 600 V maximum voltage aligns with many industrial and commercial distribution environments, supporting safe, controlled fault clearance.
• Part number stability simplifies retrofit and maintenance planning when the exact Siemens SKU must be maintained in records and on drawings.
• Availability through AmpState helps ensure you can source the exact component when you need it, reducing downtime and provisioning delays.

This Siemens breaker is ideal for facilities teams, electrical contractors, and maintenance planners who prioritize precise compatibility and dependable protection. It’s particularly valuable in retrofit scenarios where you’re upgrading or replacing components without changing the existing panel architecture or documentation, keeping installation smooth and traceable.

When evaluating fit, confirm that the panel and distribution setup require a 3-pole, 40 A, 600 V circuit protection device and that the part number 3VA5140-5EF31-0AA0 matches your equipment spec. If you’re unsure about compatibility, AmpState can assist with fit confirmation to help you avoid unnecessary replacements or downtime.

Practical tips for optimal use: store the breaker in a clean, dry environment to preserve the mechanical and electrical integrity, and document the exact SKU in your maintenance logs to streamline future servicing. This approach minimizes confusion during inspections and ensures consistent protection across your electrical distribution network.