Square D EDB14020 Molded Case Circuit Breaker

This bolt-on E-Frame breaker is designed exclusively for Square D NF series lighting and distribution panelboards. It will not fit in QO, Homeline, NQ, or I-Line panelboards.

The middle letter in the catalog number designates the maximum short-circuit interrupting capacity at 480Y/277VAC. The EDB series is rated at 18kAIC, EGB provides 35kAIC, and EJB provides 65kAIC. They share the same physical dimensions and are interchangeable within NF panelboards as long as the fault current ratings meet your site requirements.

Yes, this 20-amp breaker is HID rated for high-intensity discharge lighting loads. It is also SWD (switching duty) rated, meaning it can be safely used to directly switch 277V fluorescent lighting circuits on and off on a regular basis.

Yes. Standard EDB breakers do not have line and load markings and can be reverse fed per manufacturer guidelines. When used as a backfed main in an NF panelboard, a separate breaker retaining kit is required to secure it to the bus.

Yes, it includes the standard Square D Visi-Trip indicator. When the breaker trips due to an overload or short circuit, the handle rests in the center position and a highly visible red flag appears, allowing for rapid fault identification during maintenance.

The factory-installed aluminum lugs accept 14 to 6 AWG copper wire or 12 to 6 AWG aluminum wire. For a safe and compliant installation, the terminals must be tightened to 30 inch-pounds (3.4 Nm).

No. The standard EDB14020 provides thermal-magnetic short-circuit and overload protection, but it lacks the 30mA equipment ground fault protection found in the EPD (Equipment Protection Device) version. Furthermore, a 1-pole EPD breaker occupies two pole spaces in the panel, whereas this standard breaker only requires one.

Yes, the EDB14020 is HACR certified. It has been tested and approved for the specific inrush currents and operational profiles of heating, air conditioning, and refrigeration equipment motor loads.