Schneider Electric EJB24020 Two Pole Circuit Breaker

Square D by Schneider Electric EJB24020 is a bolt-on, two-pole mini circuit breaker in the E-Frame family, engineered for 480Y/277 VAC electrical distribution. This 20 A device provides overcurrent protection for each leg of a 3‑phase system and is rated for a maximum interrupting capacity of 100 kAIC, making it suitable for commercial and industrial panelboards that require high fault current handling. The EJB24020 features bolt-on mounting for secure installation in compatible Square D NF panelboards and is identified as a TAA-compliant part for government procurement. As part of Schneider Electric's E-Frame line (alongside EDB and EGB variants), the EJB24020 shares the same form factor and mounting footprint, enabling deployment within the series on compatible enclosures. Typical applications include protection of lighting, receptacle, and branch circuits in commercial buildings, data centers, and industrial facilities where 480Y/277 VAC distribution is used.