General Electrics TEYF390 - 90 A, 3-Pole Bolt-On Circuit Breaker | AmpState

The General Electric TEYF390 is a 90-amp, 3-pole bolt-on molded case circuit breaker engineered to deliver dependable branch-circuit protection in panelboards and load centers. Built for rugged performance, this unit keeps vital electrical systems protected in everyday residential spaces, commercial settings, and light-industrial environments where reliability matters.

Why TEYF390 stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection. This design minimizes movement, maintains consistent contact pressure, and helps reduce loose connections over time.
• Thermal-magnetic trip unit combines stable overload protection with instant short-circuit response. The thermal element handles gradual heat, while the magnetic element reacts quickly to faults, helping prevent damage and downtime.
• 3-pole configuration delivers balanced, three-phase protection, ideal for modern panelboards and load centers that service 3-phase equipment.
• 90 A rating allows higher-continuous-load circuits and motor feeders to run efficiently without unnecessary trips, while still offering precise protection when faults occur.
• OEM-compatible designed to pair with matching GE OEM load centers and panelboards, ensuring proper fit, electrical listing, and straightforward replacement.
• Versatile application suitable for residential, commercial, and light-industrial installations where reliable overcurrent and short-circuit protection is essential.

In practice, the TEYF390 helps you maintain safer electrical distribution by preventing nuisance trips on normal startup surges while still delivering fast isolation of faults. Its robust mounting and accurate trip profile mean fewer service calls for nuisance trips or equipment damage, translating to smoother operation and greater peace of mind.

Use cases and ideal scenarios

• Upgrading a home or small business panel to accommodate higher-load circuits, without compromising safety or listing compliance.
• Replacing a failing 3-pole breaker in GE OEM panelboards and load centers with a matched, reliable TEYF390 unit.
• Providing dependable protection for 3-phase feeders and motor-driven equipment in light commercial or industrial environments.

Technical snapshot

• Manufacturer: General Electrics
• Part Number: TEYF390
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90A
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Whether you're upgrading a residential panel, outfitting a commercial distribution system, or integrating a reliable 3-phase solution in a light-industrial setting, the TEYF390 delivers precise protection with durable construction. Pair it with compatible GE load centers for a seamless, code-compliant installation that stands up to daily use and unexpected faults alike.