Siemens 3VA5220-6EC31-0AA0 - 31-0A, 3-Pole, Circuit Breaker

Siemens 3VA5220-6EC31-0AA0 is a rugged 3-pole circuit breaker designed to deliver dependable overcurrent protection in demanding electrical environments. With a 310 A rating and a 3-pole configuration, it brings flexible, reliable protection to panelboards, switchboards, and control panels across industrial, commercial, and OEM applications.

Engineered for robust performance, this Siemens breaker helps maintain safe operation in distribution panels and motor control centers where uninterrupted power and precise protection matter. Its 3-pole design enables streamlined integration into multi-function electrical assemblies, simplifying wiring and coordination with other protective devices in the same system.

• 310 A
• 3-Pole
• Circuit Breaker
• panelboards, switchboards, control panels, motor control centers

Why this Siemens breaker stands out

What sets the 3VA5220-6EC31-0AA0 apart is its combination of Siemens engineering rigor and practical versatility. The three-pole format supports efficient protection and coordination across three-phase systems, while the 310 A rating targets medium-to-heavy distribution needs without sacrificing response time or reliability. Built to endure in industrial settings, this device integrates smoothly with other Siemens protection and automation equipment, helping you maintain consistent trip performance and simpler maintenance planning.

Ideal use cases

• Industrial motor control centers that require reliable three-phase protection for motors and drives
• Distribution panels in manufacturing lines, conveyors, and packaging equipment
• Commercial and OEM electrical installations needing compact, scalable overcurrent protection
• HVAC and building automation panels where dependable power interruption protection is critical

Practical considerations and benefits

Choosing a Siemens 3VA5220-6EC31-0AA0 means aligning with a protection strategy you can trust. The 3-pole configuration supports clear, predictable tripping in three-phase systems, helping prevent equipment damage from overcurrents while reducing nuisance trips. The compact, modular approach simplifies installation and future expansion of your distribution panels and motor control centers. When used as part of a coordinated protection scheme, this breaker contributes to safer operation, easier troubleshooting, and longer equipment life.

Installation and care tips

• Follow Siemens installation guidelines to ensure proper mounting, wiring, and clearance within panels.
• Verify compatibility with existing protection schemes and accessories in your distribution system.
• Periodically inspect connections and ensure secure torque per your facility’s maintenance procedures to preserve reliable performance.