General Electric | TEY3090ST12 | Circuit Breaker | 90A | 3-Pole | 480V

General Electric TEY3090ST12 is a robust, three-phase circuit breaker designed to protect 480V electrical systems with a precise 90A rating. Engineered for reliability in maintenance, retrofit, and replacement projects, this 3-pole device ensures your power distribution stays safeguarded against overcurrent events while matching exact system specifications.

Why this GE circuit breaker stands out

• Exact compatibility: The TEY3090ST12 part number is the strongest reference for ensuring a proper fit in your panel or switchgear. When in doubt, verify the part number to avoid mismatches.
• Three-pole design for balanced protection across all phases in a 3-phase 480V system, reducing the risk of uneven load faults.
• 90A current rating delivers appropriate protection for moderate to heavy loads, helping prevent equipment damage while maintaining controllable disconnect thresholds.
• Versatile application: Ideal for industrial distribution panels, motor control centers, and feeders that operate at 480V in manufacturing facilities, data centers, and larger commercial installations.

Use cases and real-world applications

• Maintenance and retrofits on existing 480V electrical panels where a like-for-like replacement is required to avoid compatibility issues.
• Equipment feed protection for manufacturing lines, pumps, conveyors, and HVAC systems that run on 480V three-phase power.
• Upgrades to align new or expanded facilities with previously installed GE TEY-series components for consistent protection strategies.

How to ensure proper fit and safe installation

• Confirm Amperage: 90A, Poles: 3-Pole, and Voltage: 480V match your panel requirements before ordering.
• Use the TEY3090ST12 part number as the primary reference to verify compatibility with your GE-compatible enclosure or switchgear.
• Follow electrical codes and manufacturer guidelines when replacing or installing; power must be shut off and panels properly locked out during service.
• Document your replacement part in your maintenance records to ensure future serviceability and repeatability.

Specifications at a glance

• Amperage: 90A
• Poles: 3-Pole
• Voltage: 480V
• Part number: TEY3090ST12
• Applications: Maintenance, retrofit, and replacement for 3-phase 480V systems

Choosing the GE TEY3090ST12 means leaning on a trusted lineage of protection solutions designed for demanding electrical environments. By prioritizing exact compatibility and clear, meaningful technical details, this circuit breaker helps you minimize downtime and maximize safety across your 480V infrastructure.