General Electric TEYH3110B 110A 3-Pole 480 V Circuit Breaker Potential Transformer

General Electric TEYH3110B is a purpose-built 110 A, 3-pole circuit breaker with an integrated potential transformer, designed to streamline protection and metering in 480 V three-phase power systems. Built for reliability in demanding industrial environments, this GE component combines protection, control, and monitoring into a single, space-saving solution.

What makes this unique

• Integrated potential transformer provides a scaled voltage signal directly from the breaker for protection relays and energy meters, reducing the need for separate VT installations and simplifying panel wiring.
• Three-pole configuration ensures synchronized protection across all three phases, improving coordination and reducing the risk of uneven fault responses.
• 110 A current rating offers solid protection for medium-load, three-phase circuits while maintaining compatibility with standard protection schemes in industrial switchgear.
• 480 V voltage rating aligns with typical industrial distribution systems, making it a practical choice for data centers, manufacturing floors, HVAC systems, and large equipment feed paths.
• Proven GE reliability—a trusted option for ongoing maintenance, parts availability, and system standardization across facilities.

Ideal use cases

• Motor control centers and distribution panels where compact installation and integrated sensing simplify wiring and protection planning.
• Industrial facilities with extensive 480 V three-phase networks requiring both circuit protection and immediate, accurate voltage sensing for relays and meters.
• Retrofits or panel upgrades where reducing ancillary components improves reliability and reduces install time.
• Data centers and critical infrastructure where precise monitoring and fault isolation are essential for uptime.

How it benefits your electrical system

The TEYH3110B delivers a streamlined protection strategy by combining a robust circuit breaker with a built-in potential transformer. This integration means faster, more accurate fault detection and cleaner data feeds to metering equipment and protective relays. With Phase 1 to Phase 3 symmetry and a shared sensing pathway, you gain consistent protection across all lines, minimizing nuisance tripping and ensuring coordinated shutoffs during faults.

Specs at a glance

• Part Number: TEYH3110B
• Current Rating: 110 A
• Poles: 3
• Voltage Rating: 480 V
• Function: Circuit Breaker with Integrated Potential Transformer

Who should consider this product

Electrical engineers, panel builders, and maintenance teams responsible for reliable, scalable 3-phase power distribution at 480 V will appreciate the TEYH3110B. It simplifies installation, reduces wiring complexity, and provides a dependable sensing path for protection and metering without compromising safety or performance.

If you’re configuring or upgrading a 480 V three-phase system and need a unit that combines solid overcurrent protection with integrated voltage sensing, the General Electric TEYH3110B 110A 3-Pole 480 V Circuit Breaker Potential Transformer is designed to meet those needs with clarity and reliability.