Siemens 3VA5170-5ED31-0AA0 0A 3-Pole 3 V Circuit Breaker Potential Transformer

Upgrade your Siemens switchgear with the OEM 3VA5170-5ED31-0AA0. This 3-pole circuit breaker potential transformer is engineered for three-phase protection assemblies, delivering a precise, compact signal interface that connects your protective relays to the breaker stack. With a 3 V secondary rating and a listed current rating of 0 A, this part is designed to integrate smoothly into Siemens-certified panels and relays, helping you maintain accurate sensing without disrupting the control circuit.

Key specifications

• Part number: 3VA5170-5ED31-0AA0
• Current rating: 0 A
• Poles: 3
• Voltage rating: 3 V
• Type: Circuit Breaker Potential Transformer

What this transformer does

Designed to sit within a three-phase protection scheme, this Siemens potential transformer provides a low-voltage signal representative of the energized circuit for metering and protection relays. By delivering a stable 3 V secondary signal, it enables accurate monitoring, fault detection, and timely tripping decisions while the main power is carried by the 3-pole breaker assembly. The OEM design ensures consistent electrical characteristics and reliable performance across compatible Siemens equipment.

Ideal applications

• Three-phase protection panels in industrial facilities
• Metering and monitoring interfaces in switchgear assemblies
• OEM-replacement within Siemens 3VA5170-series installations
• Retrofits or upgrades where exact Siemens compatibility is essential

Why choose an OEM Siemens part

Using an authentic Siemens 3VA5170-5ED31-0AA0 guarantees exact pinout, electrical characteristics, and mechanical fit. OEM parts minimize compatibility issues, reduce installation time, and support long-term serviceability by ensuring spare parts remain available and consistent with your existing protection and control strategy.

Installation and care tips

• Verify the listed current rating and voltage rating align with your protection relay and panel requirements before installation.
• Follow standard safety practices for working with energized equipment and ensure proper enclosure and labeling in the control cabinet.
• Coordinate with your protection relay documentation to confirm the appropriate secondary wiring and connector configuration.
• Store and handle the unit in accordance with Siemens guidelines to preserve insulation integrity and performance.