Siemens 3VA5330-5EF31-0AA0 Circuit Breaker, 300A, 3-Pole, 600V

Engineered for demanding industrial environments, the Siemens 3VA5330-5EF31-0AA0 circuit breaker delivers dependable overcurrent protection for 3-phase systems. Rated at 300 A with a 3-pole configuration and a 600 V maximum operating voltage, this unit is built for robust service, whether you’re installing new equipment or performing critical maintenance and replacements.

Why this Siemens breaker stands out

• Precise part-number compatibility: 3VA5330-5EF31-0AA0 is a clearly identifiable Siemens component, designed for reliable fit in compatible panels and gear. Use the part number to confirm suitability for your application.
• Industrial-grade protection: Specifically intended for industrial service, it provides clear, predictable interruption during overloads and short circuits, helping keep indispensable equipment safeguarded and downtime minimized.
• Three-pole reliability: The 3-pole design ensures balanced protection across all three phases in a 3-phase power system, essential for motors, conveyors, and other heavy loads.
• High-current capability: With a 300 A rating, it supports substantial feeder and distribution loads common in manufacturing, processing, and large facilities.
• Straightforward applications: Ideal for replacement projects, service upgrades, and maintenance cycles where a direct, match-worthy part number is required.

Practical use cases

• Retrofit or replace failed breakers in 3-phase, 600 V distribution panels within industrial plants
• Populated service panels undergoing maintenance or capacity upgrades that require a precise Siemens part
• New installations that demand a rugged, field-reliable 3-pole 300 A protection device

How to ensure the right fit

Verify fit by the exact part number and your application requirements. If you’re unsure about compatibility, send a message with your panel type, voltage, and amperage needs—our team can help confirm whether 3VA5330-5EF31-0AA0 is the correct match for your system.

This Siemens circuit breaker is a purpose-built solution for industrial service, maintenance, and replacement projects. By choosing the precise part number and matching it to your 3-phase, 600 V system, you’ll gain reliable protection, easier maintenance planning, and clearer traceability for future service needs.