GE TEYH3045B - 45 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the GE TEYH3045B — a 45A, 480V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers.

Key capabilities that make this breaker stand out:

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, maintaining reliable contact even in installations subject to movement or temperature swings.
• Thermal-magnetic trip unit provides stable, repeatable protection against overcurrent and short-circuit events, reducing nuisance trips and ensuring predictable performance from start-up through steady operation.
• OEM compatibility is designed to work seamlessly with matching GE load centers and panelboards, simplifying installation and ensuring safe, code-compliant integration.
• Versatile application is suitable for residential, commercial, and light industrial electrical systems where 3-phase 480V power is standard.

Ideal use scenarios

Use the TEYH3045B to protect 3-phase feeders and branch circuits in panelboards and load centers. It’s well-suited for service equipment in commercial spaces, HVAC or controller panels, lighting and power distribution in light industrial settings, or any application requiring reliable 480V short-circuit protection.

Technical snapshot

• Manufacturer: GE
• Part number: TEYH3045B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 45A
• Voltage rating: 480V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker matters: its rugged bolt-on design and precisely tuned thermal-magnetic trip ensure dependable protection in environments that experience vibration, thermal cycling, or load fluctuations. When paired with a compatible GE panelboard, it delivers a safer, more maintainable distribution system with minimized downtime during maintenance or expansion.