Siemens 3VA4120-6ED34-0AA0 20A 3P 480V Circuit Breaker | AmpState

Siemens 3VA4120-6ED34-0AA0 is a 3-pole, 20 A circuit breaker engineered for reliable protection in panelboards, load centers, and broader electrical distribution systems. Built to operate in a 480 V environment, it provides dependable interruption across all three phases, helping maintain safe, continuous service for your critical circuits.

• Exact part-number match for Siemens installations—this specific model is ideal when your project or maintenance inventory requires a direct part-number match, reducing guesswork and speeding up procurement.
• Three-pole, 20 A protection—designed to guard each phase from overload while keeping the distribution neatly organized in multi‑phase panels.
• Versatile compatibility—suitable for panelboards, load centers, and various electrical distribution applications, making it a practical choice for new builds and retrofits alike.
• Robust, compact design—engineered to endure routine panel operations with predictable switching performance and reliable fault interruption.
• Convenient procurement through AmpState—available now from AmpState, with friendly assistance to confirm fit or compatibility if needed.

Use cases and who benefits

This 3VA4120-6ED34-0AA0 is ideal for maintenance teams, panel builders, and facilities managers who rely on Siemens components for consistent performance in 480 V distribution systems. It serves as a dependable replacement in existing Siemens installations and a smart addition to spare part inventories for critical electrical infrastructure.

Why this part matters

Choosing the exact Siemens part number ensures seamless replacement without modifying panels or wiring schemes. The 3-pole, 20 A configuration provides balanced protection across all phases, minimizing the risk of unplanned outages and helping you maintain code-compliant, safe electrical rooms.

Practical tips for installation and planning

• Verify panelboard compatibility by matching the exact part number before ordering to avoid mismatches during a critical outage window.
• Maintain a small inventory of essential Siemens breakers (including 3VA4120-6ED34-0AA0) for rapid replacement in service calls or retrofit projects.
• Consult AmpState support if you’re unsure about fitment in a non-standard enclosure or if you’re compiling a parts list for a multi-brand distribution system.