General Electrics TEYF340 - 40 A, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the General Electrics TEYF340, a 40A, 3-pole bolt-on molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built to endure the demands of modern electrical systems, this breaker helps keep critical circuits safe in a wide range of environments.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing the risk of connection looseness in harsh or active installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining delayed thermal response for overloads with immediate magnetic trip for short circuits.
• OEM compatibility ensures seamless integration with matching General Electric loadcenters and panelboards for a reliable, like-for-like replacement.
• Versatile application suitable for residential, commercial, and light industrial settings, making it a practical choice for a variety of distribution panels.

The TEYF340 stands out for its robust hardware and protection-focused design. With bolt-on mounting, technicians can achieve a solid, long-lasting connection that stands up to vibration and panel movement. The thermal-magnetic trip mechanism provides precise protection characteristics you can rely on during both routine loads and fault conditions, helping to minimize nuisance trips and protect downstream equipment.

• Manufacturer: General Electrics
• Part Number: TEYF340
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios include upgrading or replacing aging protection in residential panelboards, outfitting commercial electrical rooms with dependable three-phase protection, and providing reliable protection for light industrial equipment where a sturdy bolt-on breaker is preferred. If you’re working within OEM-approved panelboards, the TEYF340 aligns with your system’s design intent, delivering consistent protection and straightforward serviceability.

Whether you're restoring a legacy panel or installing new circuit protection for a 3-phase distribution, the TEYF340 offers a concrete, purpose-built solution. Its combination of secure mounting, reliable trip performance, and OEM compatibility helps ensure electrical safety and uninterrupted operation across your electrical infrastructure.