Siemens 3VA5140-5EC31-0AA0 Circuit Breaker, 40A, 3-Pole, 600V

Engineered for serious industrial environments, the Siemens 3VA5140-5EC31-0AA0 circuit breaker delivers trusted three-phase protection for service, maintenance, and replacement projects. With a 40 A current rating and a 600 V maximum operating voltage, this 3-pole device is designed to guard motors, conveyors, pumps, and other essential equipment in demanding facilities.

• Manufacturer: Siemens
• Part Number: 3VA5140-5EC31-0AA0
• Product Type: Circuit Breaker
• Amperage: 40 A
• Poles: 3
• Voltage: 600 V

Why it matters: In industrial settings, using the correctly rated three-pole breaker protects equipment and minimizes downtime by isolating faults quickly and reliably. The 3VA5140-5EC31-0AA0 is compatible with standard Siemens panels and switchgear, ensuring proper electrical coordination and straightforward installation during new builds or refurbishments.

Use cases:

• New installations requiring 3-phase protection at up to 600 V
• Repairs or replacements in Siemens-compatible electrical gear
• Spare parts for service fleets that maintain 3VA-series protection devices

Compatibility and support: Verify fit by part number and application requirements. If you need help matching a part number or confirming compatibility, message us and we'll help.

How this stands apart: This Siemens circuit breaker is specifically designed to integrate with Siemens protection schemes and panel configurations, reducing the risk of misfit parts and ensuring consistent protection behavior across your electrical system. By using the exact part number, you simplify ordering, installation, and future maintenance.

Practical tips:

• Double-check that your panel accepts the 3VA-series breakers and supports a 40 A, 3-pole, 600 V rating.
• Keep the part number handy for quick reordering during maintenance windows.
• Coordinate with your protection strategy to ensure trip thresholds align with connected loads (motors, drives, heaters, etc.).