GE TEYH3125B - 125 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

GE TEYH3125B is a 125A, 480V, 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers.

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection for stable operation in demanding electrical environments.
• Thermal-magnetic trip unit: combines a thermal element for gradual protection with an instantaneous magnetic trip, delivering stable, repeatable protection performance across temperature and load variations.
• OEM compatibility: designed to integrate with matching GE OEM load centers and panelboards for a seamless, code-compliant installation.
• Versatile applications: suitable for residential, commercial, and light industrial electrical distributions.

Technical snapshot

• Manufacturer: GE
• Part Number: TEYH3125B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 125 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

What makes this breaker worth choosing

• Reliability in demanding environments thanks to a rugged, bolt-on installation that minimizes vibration-induced connection issues.
• Consistent protection performance across temperature and load variations thanks to the thermal-magnetic trip design.
• Scales with your project—whether you’re upgrading a panelboard, expanding a commercial distribution, or wiring a light industrial feeder, this 3-pole solution provides the right balance of current rating and voltage for 480V systems.
• Streamlined compatibility with GE panelboards and OEM enclosures reduces rework and ensures code compliance.

Ideal use cases

• New installations in 480V three-phase electrical distributions for commercial buildings.
• Retrofits or replacements in existing GE panelboards where bolt-on mounting is required.
• Protection of branch circuits feeding motors, HVAC equipment, or other 480V loads in light industrial settings.

Practical tips

• Verify that your panelboard is designed to accept TEYH-series, 3-pole bolt-on breakers to ensure proper fit and electrical clearance.
• Plan the protection scheme around downstream devices to maintain appropriate short-circuit protection levels and coordination with upstream protection.
• Store spares in a clean, dry environment to preserve the breaker's mechanical cycling and reliability.