Siemens 3VA5120-5ED11-0AA0 Circuit Breaker, 20A, 1-Pole, 600V

The Siemens 3VA5120-5ED11-0AA0 circuit breaker is engineered for robust protection in industrial environments, delivering dependable overcurrent protection for single‑pole circuits up to 600V. With a 20A rating, this unit is designed for service, maintenance, and replacement projects where quick, reliable shutoff is essential to safeguarding equipment and personnel.

Key specifications

• Manufacturer: Siemens
• Part number: 3VA5120-5ED11-0AA0
• Product type: Circuit Breaker
• Poles: 1
• Amperage: 20 A
• Voltage rating: 600V
• Application: Industrial electrical service, maintenance, and replacement projects
• Compatibility note: Verify fit by part number and application requirements

Why it stands out

Choosing the Siemens 3VA5120-5ED11-0AA0 means leaning on a trusted industrial protection solution from a brand known for reliability in challenging environments. This unit is purpose-built for single‑pole protection at a 20A rating, making it ideal for safeguarding individual feeders, control circuits, or motor-related loads within panels designed for Siemens 3VA-type breakers. Its design emphasizes quick disconnection in fault conditions, helping minimize damage to downstream equipment and reducing downtime during maintenance.

Use cases and ideal applications

• Upgrading or replacing worn or failed breakers in industrial control panels and distribution boards
• Protecting single-phase circuits feeding motors, sensors, or control logic in manufacturing lines
• Part of a modernization effort where Siemens 3VA-series breakers are specified or preferred for uniformity in a panel lineup
• New installations in environments that require reliable 600V single-pole protection for critical equipment

Compatibility and installation considerations

• Always verify fit by cross-checking the exact part number (3VA5120-5ED11-0AA0) against the panel manufacturer’s guidelines and the application requirements
• Confirm the enclosure or breaker panel accepts Siemens 3VA-type breakers and supports single-pole devices
• Ensure the circuit’s voltage and amperage align with the 600V, 20A rating for safe operation
• Follow all safety practices during installation and refer to the panel’s installation instructions for mounting and wiring
• Keep part on hand as a direct replacement option for planned maintenance or urgent repairs to minimize downtime

For assistance with compatibility, you can use the part number 3VA5120-5ED11-0AA0 as your quick reference to confirm fit and suitability for your specific application. This approach helps ensure you’re pairing the right Siemens circuit protection with your industrial system, supporting reliable operation and safer electrical environments.