Siemens 3VA4120-6ED14-0AA0 - 14-0A, Circuit Breaker

Siemens 3VA4120-6ED14-0AA0 is a robust 140A circuit breaker engineered for reliability in demanding electrical systems. The model designation 14-0A reflects the current rating, yet this unit is purpose-built to deliver dependable overcurrent protection in mid-range applications, aligning with standard Siemens panel architectures.

This breaker is designed to protect circuits across panelboards, switchboards, control panels, and OEM equipment. In industrial, commercial, and OEM settings, it helps prevent faults from cascading and safeguards valuable equipment and wiring, reducing downtime and ensuring safe operation in distribution networks and motor control centers.

Key specifications

• Current rating: 140A (model designation 14-0A)
• Breaker type: Circuit Breaker
• Electrical fitment: Compatible with panelboards, switchboards, control panels, and OEM equipment
• Typical applications: Industrial machinery, distribution panels, motor control centers

Why choose this Siemens breaker

Built by Siemens for seamless integration, the 3VA4120-6ED14-0AA0 delivers consistent protection in environments where safety and uptime are critical. Its 140A protection rating is ideal for feeders and motor circuits, providing reliable interruption when overloads or faults occur. The unit is designed to withstand the rigors of busy control rooms and manufacturing floors, supporting steady operation across daily shifts and ensuring compatibility with Siemens ecosystem components.

Ideal use cases

• Feeder protection in distribution panels within manufacturing lines
• Motor control center protection to guard conveyors, pumps, and fans
• OEM equipment protection requiring a compact, high-current circuit breaker

Installation and maintenance tips

• Match the current rating and circuit requirements to ensure proper coordination and selective tripping.
• Verify compatibility with your panelboard or switchboard design and with existing Siemens components to maintain a cohesive protection strategy.
• Follow standard electrical safety practices during installation and regular inspection to ensure continued reliable performance.