Square D EDB14015 Miniature Circuit Breaker

This breaker mounts directly into Square D NF panelboards [1.4.1], which are commonly used in commercial and industrial settings for 277V lighting and 480Y/277V branch distribution.

These E-frame series breakers share the same physical dimensions and fit identical NF panelboards but feature different interrupting capacity (AIC) ratings. While the EDB14015 has an 18kAIC rating at 277VAC, the EGB14015 offers 35kAIC, and the EJB14015 provides 65kAIC. You can substitute an EGB or EJB model if your facility requires a higher fault current rating.

This 1-pole E-frame breaker is approximately 1 inch wide and occupies a single space on the NF panelboard bus.

The EDB14015 features a bolt-on connection. It fastens directly to the NF panelboard bus bar using a built-in mounting screw. This configuration provides a highly secure mechanical contact that resists vibration in commercial environments.

The factory lugs support 14-6 AWG copper or 12-6 AWG aluminum conductors and should be torqued to approximately 30 lb-in (3.4 N.m) during installation.

Yes. It is both SWD (Switching Duty) and HID (High-Intensity Discharge) rated. This certification means the breaker is proven to safely handle the heavy inrush currents of fluorescent and HID lighting setups at 277VAC without experiencing nuisance tripping.

Yes, the EDB14015 is HACR rated, meaning it is approved for group motor applications like heating, air conditioning, and refrigeration equipment that fall within its 15A rating limit.