General Electrics TEY380ST12 - 80 A, 3-Pole Bolt-On Circuit Breaker | AmpState

The General Electrics TEY380ST12 is a rugged 80A, 3-pole bolt-on molded case circuit breaker designed to protect panelboards and load centers from overcurrent and short-circuit events. Built for dependable performance across residential, commercial, and light industrial installations, this unit combines a secure mounting method with precise protection, so you can rely on power continuity with peace of mind.

Why this breaker stands out

• Secure bolt-on mounting: A rigid, vibration-resistant bus connection minimizes loosening and ensures stable electrical performance in environments with movement or equipment vibration.
• Thermal-magnetic trip unit: The dual-action protection responds to both gradual overloads and instantaneous faults, delivering predictable protection curves you can count on.
• OEM compatibility: Designed to pair with matching General Electrics OEM load centers and panelboards for a clean fit and proper coordination.
• Dedicated for branch circuits: Specifically engineered to guard branch circuits against overcurrent and short-circuit conditions, preserving equipment and reducing downtime.

How it protects your system

The TEY380ST12 uses a thermal element to sense sustained overcurrent, triggering the circuit to trip after a controlled delay to prevent nuisance trips. When a severe fault occurs, the magnetic mechanism reacts instantly, opening the circuit to isolate the fault. This combination provides reliable, repeatable protection across a wide range of loads and fault scenarios, helping keep wiring, devices, and occupants safe.

Ideal use cases

• New installations where a robust, bolt-on breaker is preferred for a secure bus connection.
• Panelboard or load center upgrades in residential, commercial, and light industrial settings.
• Repairs or replacements in GE-compatible equipment where OEM match and proven performance matter.
• Feeder and distribution circuits that require dependable short-circuit protection to limit damage and downtime.

Technical specifications at a glance

• Manufacturer: General Electrics
• Part number: TEY380ST12
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 80 A
• Number of poles: 3
• Mounting style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection

Available through AmpState, the TEY380ST12 delivers a reliable, OEM-aligned solution for protecting your electrical distribution infrastructure. Whether you’re stocking up for service upgrades or performing a targeted replacement, this 3-pole bolt-on breaker is built to deliver durable performance where it matters most.