Siemens 3VA6340-8HL31-0AA0 Circuit Breaker, 400A, 3-Pole, 600V

Meet the Siemens 3VA6340-8HL31-0AA0 circuit breaker—a rugged, three‑pole protection device engineered for demanding industrial electrical service, precise maintenance, and reliable replacement projects. Built to handle high-current environments, this unit is designed to safeguard your equipment and keep critical processes running smoothly.

Overview

Engineered for industrial use, the 3VA6340-8HL31-0AA0 is a robust 3-pole circuit breaker with a 400 A rating and a 600 V operating capacity. It’s purposefully designed to integrate into heavy-duty electrical systems where dependable overcurrent protection is essential.

Key specifications

• Amperage: 400 A
• Poles: 3
• Voltage: 600 V
• Part Number: 3VA6340-8HL31-0AA0
• Product Type: Circuit Breaker

What sets this Siemens breaker apart

What makes this unit stand out is its alignment with industrial protection needs—reliable performance under high currents, straightforward identification by part number, and compatibility with Siemens systems that value cohesive protection strategies. The 3VA6340-8HL31-0AA0 is built to meet the demands of large‑scale electrical service, maintenance routines, and retrofit projects where precise, dependable overcurrent protection is non‑negotiable.

Ideal use scenarios

• Main service disconnects for manufacturing lines and plant floors
• Protective protection in heavy machinery and motor control applications
• Replacement in ongoing maintenance programs where matching part numbers ensures seamless compatibility
• Upgrades to support higher electrical load demands while maintaining established safety standards

Compatibility & installation notes

To ensure proper fit and performance, verify compatibility using the exact part number 3VA6340-8HL31-0AA0 and confirm that your system’s voltage and current ratings align with 600 V and 400 A. Verify fit by part number and application requirements to avoid mismatches in enclosure, mounting, or coordination with existing protection schemes. If you need help matching a part number or confirming compatibility, message us and we’ll assist.

Why choose Siemens for industrial protection?

Siemens brings decades of engineering precision to industrial electrical protection. With the 3VA6340-8HL31-0AA0, you gain a trusted component designed to integrate into complex power layouts, support reliable downtime prevention, and simplify maintenance planning—so your operations stay productive and safe.