Siemens 3VA5150-4EF31-0AA0 50A 3P 480V Circuit Breaker | AmpState

Meet the Siemens 3VA5150-4EF31-0AA0—a purpose-built circuit breaker engineered to deliver dependable protection in panelboards, load centers, and electrical distribution networks. With a 50 A rating, 3 poles, and 480 V operation, this unit is designed for demanding three-phase applications while helping you maintain system stability and safety. Available through AmpState, it’s an ideal choice for retrofit work and maintenance planning where keeping the exact part number matters for compatibility and bulk sourcing.

• Exact specifications you need: 50 A, 3 poles, 480 V, Siemens part number 3VA5150-4EF31-0AA0.
• Focused on retrofit and maintenance: A fixed part number simplifies ordering, stocking, and future replacements without surprises in the field.
• Versatile protection for three-phase systems: Specifically suited for panelboards, load centers, and broader electrical distribution layouts.
• Reliable sourcing: Available from AmpState, ensuring ready availability when maintenance windows and retrofits come up.

Why this Siemens circuit breaker shines in real-world use

For facilities upgrading or maintaining three-phase distribution, consistency in spare parts minimizes downtime and accelerates service calls. The 3VA5150-4EF31-0AA0 is purpose-built to slot into existing Siemens ecosystems, helping electricians and facility managers avoid mismatches during critical repairs or expansions. It’s especially advantageous in environments where standardizing on a single part number across multiple panels streamlines procurement and documentation.

Use cases and ideal scenarios

• Retrofit projects in commercial, industrial, or data-center environments where panelboards and distribution boards require a 50 A 3P 480 V protection device with a fixed part number.

• Routine maintenance planning that benefits from predictable part availability and straightforward compatibility checks.

• Replacement in systems designed around Siemens tooling and protection coordination, ensuring consistent electrical protection strategy across the facility.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: 3VA5150-4EF31-0AA0
• Product Type: Circuit Breaker
• Amperage: 50 A
• Poles: 3
• Voltage: 480 V

Need help confirming compatibility?

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

Choose the Siemens 3VA5150-4EF31-0AA0 for reliable, standardized protection that aligns with your retrofit plans and maintenance cycles. Ask about availability from AmpState today to ensure your next service window stays on schedule.