ABB / General Electric TEYF370 Miniature Circuit Breaker

This breaker is designed specifically for use in GE A-Series lighting panelboards. It is not compatible with standard residential load centers that require plug-on breakers.

The factory-installed lugs accept wire gauges from 4 AWG up to 1/0 AWG. You can use either copper (Cu) or aluminum (Al) conductors.

It features a bolt-on mounting style. Instead of snapping onto the busbar, it bolts directly to the panelboard chassis, providing a secure mechanical and electrical connection typical in commercial applications.

In the GE Q-Line family, the F designates the interrupting capacity tier for the TEY frame. The TEYF series provides an 18kAIC rating at 480Y/277VAC, which is higher than the standard TEY series.

Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, where it provides a 10kAIC interrupting rating.

It utilizes a fixed thermal-magnetic trip unit. The thermal component provides long-time protection against sustained overloads, while the magnetic component offers instantaneous protection against short circuits.

ABB acquired GE Industrial Solutions, so the TEYF370 may feature either GE or ABB branding. The physical dimensions, specifications, and UL listings remain exactly the same regardless of the logo.

Yes, the TEYF370 shares the same physical dimensions as the standard TEY370 but offers a higher interrupting rating (18kAIC versus 14kAIC at 480Y/277VAC). It is a direct, upgraded replacement for A-Series panelboards.