GE TEYH3040B - 40 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

GE TEYH3040B is a 40A, 480V, 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its bolt-on mounting creates a rigid, vibration-resistant bus connection that stays secure even in busy electrical rooms or equipment-filled cabinets.

Why this bolt-on design matters

The secure bolt-on mounting eliminates loose connections and minimizes vibration-related wear, helping maintain consistent protection performance over time. This design is ideal for installations where durable, multi-point connections are essential to long-term reliability in three-phase power systems.

Precision protection you can count on

Equipped with a thermal-magnetic trip unit, the TEYH3040B provides stable, repeatable protection for both overload and short-circuit events. The thermal element reacts to gradual heats from overcurrent, while the magnetic element delivers a rapid response to high-energy faults, ensuring fast disconnection to protect wiring and connected equipment.

Compatibility and ideal applications

Designed to be compatible with matching GE OEM loadcenters and panelboards, this 3-pole breaker is well-suited for residential, commercial, and light industrial applications that run on 480V three-phase power. It serves as a reliable branch-circuit protective device within panelboards and loadcenters, helping you manage distribution safety in HVAC, lighting, and accessory circuits that require robust 3-phase protection.

Technical snapshot

• Manufacturer: GE
• Part Number: TEYH3040B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 480V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and considerations

• Install in 480V, three-phase panelboards or loadcenters to protect branch circuits feeding commercial equipment and light industrial systems.
• Choose the TEYH3040B when you need a sturdy, vibration-resistant connection that maintains reliable protection in environments with movement or electrical noise.
• Opt for a bolt-on solution when panel design favors rigid bus connections and straightforward field maintenance or replacement.

In short, the GE TEYH3040B combines a robust bolt-on mounting, a precise thermal-magnetic trip mechanism, and OEM-compatible reliability to deliver focused, effective protection for 480V three-phase distribution. It’s a thoughtful choice for installers seeking dependable, differentiable protection that stands up to the demands of residential, commercial, and light industrial power distribution.