Siemens 3VA5125-6ED31-0AA0 0A 3-Pole 3 V Circuit Breaker Potential Transformer

Discover reliability in protection with the Siemens 3VA5125-6ED31-0AA0 — a 3-pole circuit breaker potential transformer built for three-phase low-voltage sites. Designed to integrate with Siemens protection architectures, this unit delivers precise sensing essential for accurate tripping and dependable system monitoring.

Key specifications at a glance

• Part number: 3VA5125-6ED31-0AA0
• Poles: 3
• Voltage rating: 3 V
• Current rating: 0 A

Why this 3-pole potential transformer matters in your protection scheme

In three-phase power distribution, timely and accurate voltage sensing is the backbone of reliable protection. This Siemens unit provides a compact, integrated solution that feeds protection relays and trip units with a stable sensing signal. By aligning with Siemens’ protection ecosystem, it helps ensure coordinated tripping, reduces nuisance activations, and supports straightforward maintenance and part replacement.

Unique value you won’t want to overlook

• Built to meet industrial standards and designed for compatibility with Siemens relays and control equipment, simplifying installation and future servicing.
• The 3-pole configuration supports balanced, reliable sensing across all three phases, which is critical for accurate fault detection and selective tripping.
• Compact 3 V sensing path: The dedicated 3 V rating provides a concise, low-voltage signal path for protection circuits, enhancing relay input stability in compact switchgear layouts.
• Asset traceability: Clear part numbering (3VA5125-6ED31-0AA0) makes inventory management, repairs, and cross-checks with maintenance records efficient and precise.
• Designed for real-world installations: Suited for integration in switchgear, motor control centers, and distribution panels where Siemens protection platforms are in use.

Use cases and practical scenarios

• New panel builds that require a compact, three-phase voltage sensing transformer as part of the protection chain.
• Retrofits in existing Siemens-based switchgear to improve relay input reliability and trip accuracy.
• Maintenance routines that verify correct sensing signals feeding downstream protective relays during fault simulations.

Who should consider this part? Electrical engineers, panel builders, and maintenance personnel working with Siemens protection schemes in manufacturing facilities, data centers, and process industries. If your system relies on accurate voltage sensing for fast, selective tripping, this 3-pole, 3 V transformer is designed to fit seamlessly into that workflow.

Note: Installation and wiring should be performed by qualified personnel in accordance with local codes and Siemens guidelines. Ensure compatibility by matching the exact part number: 3VA5125-6ED31-0AA0 to your protection scheme and relay requirements.