Siemens 3VA6340-6HL31-0AA0 0A 3-Pole 3 V Circuit Breaker Potential Transformer

Meet the Siemens 3VA6340-6HL31-0AA0, a purpose-built three-pole circuit breaker with integrated potential transformer capabilities. Designed for reliable protection and precise monitoring in 3‑phase electrical systems, this unit brings Siemens engineering to the heart of your control panels.

• Current rating: 0 A
• Poles: 3
• Voltage rating: 3 V
• Part Number: 3VA6340-6HL31-0AA0

Smart protection and measurement in one enclosure

The combination of a three-pole breaker with a potential transformer enables streamlined protection schemes and metering in a single device, reducing wiring complexity and saving valuable panel space. This integration supports reliable voltage sensing and current monitoring essential for modern protection relays and energy management systems.

Key benefits that matter in the field

• Three-pole configuration provides balanced protection across all three phases, improving reliability in distributed power networks.
• Integrated potential transformer delivers measurement signals for monitoring devices and protection relays, facilitating accurate diagnostics and reporting.
• Siemens compatibility ensures seamless integration with Siemens switchgear, control panels, and service documentation, simplifying installation and future maintenance.
• Compact, space-conscious design suited for dense control cabinets and standard panel layouts.

Ideal use scenarios

Best suited for industrial control panels, switchgear assemblies, and distribution boards where three-phase protection and voltage sensing are required. The 3VA6340-6HL31-0AA0 provides a traceable, Siemens-approved component option for projects demanding clear part lineage and reliable performance.

Practical notes for installation and operation

• Verify compatibility with your enclosure, mounting hardware, and busbar configuration to ensure a proper fit.
• Match electrical ratings to your system’s voltages and protection requirements to avoid mismatch and ensure optimal operation.
• Follow safety practices during handling, installation, and replacement, and consult official manuals for wiring diagrams and safety guidelines.

With the Siemens 3VA6340-6HL31-0AA0, you gain a trusted, traceable solution that aligns protection, monitoring, and control in a single, cohesive unit—enhancing reliability and simplifying maintenance in demanding electrical environments.