Siemens 3VA5125-4ED21-0AA0 25A 2P 480V Circuit Breaker | AmpState

Introducing the Siemens 3VA5125-4ED21-0AA0—a 2-pole, 25 A, 480 V circuit breaker built to protect panelboards, load centers, and electrical distribution networks. Designed by Siemens for reliable performance in demanding environments, it delivers dependable overcurrent protection for 480 V circuits used in commercial and light industrial applications.

This unit is purpose-built for replacement projects and spare stocking, helping you keep your bill of materials (BOM) aligned with the original part number. By choosing the 3VA5125-4ED21-0AA0, you preserve device labeling, trip characteristics, and compatibility with your existing Siemens protection scheme, reducing the risk of mismatches during maintenance or upgrades.

• Exact specification match: 2-pole, 25 A, 480 V rating in a Siemens-form factor designed to fit panelboards and distribution equipment that rely on Siemens protection architecture.
• Ideal for replacements: Keeps BOM fidelity intact, ensuring seamless cross-referencing with your existing documentation and spare inventories.
• Reliable 480 V protection: Suitable for high-voltage distribution setups where robust overcurrent protection is essential for safety and uptime.
• Stock and logistics advantage: Great as a spare to minimize downtime and simplify future maintenance needs, with clear part-number continuity.
• AmpState support: Available through AmpState with guidance to confirm fit and compatibility for your specific panel or distribution configuration. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Ideal use cases and benefits

Whether you’re equipping new panel installs or performing maintenance on existing Siemens systems, the 3VA5125-4ED21-0AA0 provides predictable protection for 480 V circuits while maintaining consistency with your current gear. It’s especially valuable in facilities where uptime matters, such as manufacturing floors, data centers, and controlled environments, where a precise original-part-number replacement helps avoid rework and labeling confusion.

If you’re managing an inventory that needs to align with the original Siemens BOM, this circuit breaker is a precise, reliable choice that supports straightforward replacement workflows and rapid provisioning. AmpState stands ready to assist with compatibility checks to ensure a flawless fit in your panel or distribution setup.

Secure the Siemens 3VA5125-4ED21-0AA0 for your distribution system today. With AmpState’s availability and expert support, you’ll confirm fit quickly and keep your electrical protection aligned with the original design.