ABB / General Electric TEYF320 Miniature Circuit Breaker

The TEYF320 is a bolt-on circuit breaker designed specifically for GE A-Series lighting panelboards. It is not compatible with standard residential Q-Line load centers that require plug-in breakers.

No. The TEYF320 features a bolt-on connection intended for commercial A-Series panelboards. Residential GE load centers typically require plug-in THQL or THQP circuit breakers.

The F designates the interrupting capacity tier within the GE TEY family. The TEYF series provides an 18kA short-circuit rating at 480Y/277V, which is a step up from the standard 14kA rating of the base TEY series.

Yes, this thermal-magnetic breaker is rated for DC systems. It provides a 10kA interrupting capacity at 250VDC.

Yes. The TEYF320 carries HACR and HID ratings, making it suitable for heating, air conditioning, refrigeration, and high-intensity discharge lighting circuits.

Yes. ABB acquired GE Industrial Solutions, so you may see this breaker branded as either ABB or General Electric. The physical dimensions, specifications, and TEYF320 catalog number remain identical.

The TEYF320 shares the same physical footprint as TEY, TEYD, TEYH, and TEYL breakers. It can replace a standard TEY320 if you need a higher 18kA interrupting rating, but it cannot replace TEYD, TEYH, or TEYL models if your system requires their higher 25kA, 35kA, or 65kA ratings at 480Y/277V.

This breaker utilizes a bolt-on mounting style. It secures directly to the busbar of an A-Series panelboard using screws, providing a highly reliable connection for commercial and industrial environments.

No. The TEYF320 is a standard thermal-magnetic circuit breaker providing long-time overload and instantaneous short-circuit protection. It does not include ground-fault or arc-fault circuitry.