Siemens 3VA5145-4ED31-0AA0 45A 3P 480V Circuit Breaker | AmpState

The Siemens 3VA5145-4ED31-0AA0 is a purpose-built circuit breaker designed to protect electrical distribution systems with precision and reliability. With a 3-pole configuration, it delivers robust, three-phase protection for panelboards, load centers, and distribution boards in commercial and industrial settings. This exact part number is ideal for replacement projects and stocking spares to keep your BOM aligned with the original equipment specification.

• Specifications at a glance: 3 poles, 45 A, 480 V
• Application: panelboards, load centers, and electrical distribution systems
• Compatibility: matches the original BOM part 3VA5145-4ED31-0AA0 for hassle-free replacement
• Use case: maintenance outages, routine servicing, and long-term spare inventory
• Availability: stocked by AmpState to support quick sourcing when you need it

Why choose this Siemens breaker? It Mitigates downtime by offering a precise, field-tested replacement that fits the exact part number your system was designed for. The 3VA5145-4ED31-0AA0 is engineered for dependable circuit protection in three-phase systems operating up to 480V, making it a trustworthy choice for ensuring continuous power delivery in critical facilities.

Who benefits most? Electricians and facility managers maintaining commercial electrical rooms, technicians performing scheduled panel maintenance, and procurement teams building reliable spare inventories. If your project requires exact BOM alignment or you’re updating legacy panels that use Siemens’ 3VA series, this is the plug-and-play solution you’ve been seeking.

Practical tips for use:

• Verify that your panelboard or distribution panel is configured for a 3-pole, 480V protection scheme and that the BOM calls for 3VA5145-4ED31-0AA0.
• Keep a spare on hand for preventative maintenance to minimize unplanned outages.
• Consult the system’s protection settings to ensure coordination with upstream and downstream protective devices.

Need help confirming compatibility or matching a part number to your exact panel model? Send us a message — AmpState is ready to assist with fit checks and sourcing this Siemens breaker to keep your electrical distribution running smoothly.