Eaton 349A669G01 349A 3-Pole 347 V Circuit Breaker Potential Transformer

Introducing the Eaton 349A669G01 349A 3-Pole 347 V Circuit Breaker Potential Transformer — a purpose-built protection device engineered for demanding, three-phase power systems. With a robust 349 A current rating and a 347 V nominal operating voltage, this unit delivers reliable fault isolation for large feeders and motor loads while integrating into protection schemes that use potential transformers for metering and relay coordination.

Why this Eaton breaker stands out

• Three-pole protection: ensures all phases trip together, preserving balanced protection across your three-phase circuits.
• 349 A rating: suitable for high-current feeders and sizable load profiles, reducing nuisance trips while maintaining safety margins.
• 347 V nominal rating: aligned with common industrial distribution networks, providing compatibility with typical 3-phase systems.
• Potential Transformer integration: designed to work within PT-based protection and metering schemes for accurate relay coordination and monitoring.
• Rugged, industrial engineering: built to endure the rigors of switchboards, motor control centers, and panel boards in demanding environments.
• Traceable part identity: with the fixed part number 349A669G01, facilitating straightforward maintenance, replacements, and documentation.

Ideal applications

• Large industrial facilities with high-current three-phase feeders.
• Motor control centers and switchgear assemblies requiring reliable protection coordination.
• Distribution panels in manufacturing plants, warehouses, and processing facilities.
• Systems that rely on potential transformer-based metering and protection schemes.

Technical snapshot

• Current rating: 349 A
• Poles: 3
• Voltage rating: 347 V
• Part number: 349A669G01
• Configuration: 3-Pole circuit breaker designed for PT-based protection coordination

Usage and maintenance tips

To maximize performance and safety, ensure installation by a qualified electrician and verify compatibility with your enclosure and protection scheme. Regularly inspect connections, confirm PT wiring where applicable, and schedule periodic functional tests in line with industry standards. This Eaton device is engineered to integrate seamlessly into existing protection architectures, providing dependable isolation when faults occur and supporting accurate system monitoring through PT-based metering.