GE TEYH3100B - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The GE TEYH3100B is a rugged 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection for 480V systems. Built to withstand the demands of panelboards and loadcenters, this unit provides reliable overcurrent and short-circuit protection in residential, commercial, and light industrial environments.

Key benefits that matter in real-world setups

• Secure bolt-on mounting creates a rigid, vibration-resistant bus connection, reducing the risk of loose connections and electrical noise in demanding installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload detection with magnetic short-circuit protection—helping minimize nuisance trips and protect sensitive equipment.
• 3-pole design for 480V three-phase systems ensures proper protection of all phases in commercial or light industrial distributions.
• OEM compatibility works with matching GE and OEM load centers and panelboards for a seamless replacement or upgrade path.
• Durable molded-case construction combines compact footprint with enduring performance for everyday protection in challenging environments.

Technical snapshot

• Manufacturer: GE
• Part Number: TEYH3100B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 480V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Upgrading or stocking spare breakers for commercial panelboards that run on 480V three-phase power.
• Installing in light industrial distribution boards where secure mounting and robust protection are priorities.
• Replacing aging or worn breakers in GE-compatible panels to maintain consistent protection across the system.

Why this GE breaker stands out

Beyond its core protection specs, the TEYH3100B emphasizes reliability in practical settings: a bolt-on design that resists vibration-induced loosening, and a thermal-magnetic trip that adapts to load changes while keeping trips predictable. Its compatibility with OEM panelboards simplifies procurement and maintenance, reducing downtime during replacements and upgrades. If you operate 3-phase equipment at 480V and need a trusted, durable protection device that fits GE and partner panels, the TEYH3100B is designed to deliver.

Installation and care tips

• Ensure version compatibility with your panelboard model prior to installation to maximize performance and safety.
• Follow manufacturer torque specifications for bolt-on mounting to secure the bus connection effectively.
• Regularly inspect connections for signs of wear, corrosion, or overheating and replace if necessary to maintain protection integrity.