Siemens 3VA5340-5EC31-0AA0 Circuit Breaker, 400A, 3-Pole, 600V

Siemens 3VA5340-5EC31-0AA0 Circuit Breaker is a rugged, industrial-grade protective device designed for heavy-duty service, maintenance, and replacement projects. With a 400 A rating across three poles and a 600 V maximum system voltage, this unit delivers reliable, three-phase protection for demanding electrical distributions.

Key reasons to choose this model:

• Three-pole design for 3-phase protection—perfect for three-phase feeders and motor circuits that require synchronized outage protection across all phases.
• 400 A current rating—handles substantial load demands typical of industrial facilities, manufacturing lines, and large HVAC or pump installations.
• 600 V maximum voltage—suitable for mid-range industrial distribution panels, switchgear, and power distribution assemblies.
• Industrial-grade reliability—built to withstand the rigors of continuous operation in harsh environments, with compatibility considerations aligned to Siemens’ 3VA series ecosystem.
• Easy compatibility verification—designed to be matched by part number and application requirements, simplifying replacement and upgrades in existing systems.

Ideal for facilities upgrading their electrical infrastructure, this breaker supports:

• Main distribution panels in factories and warehouses
• Motor control centers and large equipment feeders
• Critical systems where rapid, dependable interruption protection is essential
• Repairs and replacements within Siemens-compatible switchgear and panel setups

How to confirm compatibility—verify fit by the exact part number 3VA5340-5EC31-0AA0 against your application requirements (400 A, 3-pole, 600 V). If you’re unsure about fit or installation specifics, we’re here to help—simply message us to confirm compatibility with your panel, bus arrangement, and system design.

With Siemens’ engineering backing and a design focused on dependable protection for industrial power distribution, this circuit breaker offers a clear path to safer, more reliable operation in demanding environments.