EDB14020 SQUARE D 1P 20A 277V

The EDB14020 is commonly used to protect single-phase 277V branch circuits in commercial buildings — most often fluorescent or LED lighting loads connected line-to-neutral on a 480Y/277V three-phase distribution system. The 277V rating makes it unsuitable for standard 120/240V residential applications.

The Square D EDB-frame series has seen changes in availability over time, and specific configurations like the 277V 1-pole variant can be difficult to locate through standard channels. Northern Breaker Group specializes in obsolete and hard-to-find breakers — contact our Calgary, Edmonton, or Vancouver counters and we'll work to source it for you.

Provided your existing panelboard accepts bolt-on ED-frame breakers and the voltage/amperage ratings match your circuit requirements, the EDB14020 is generally a suitable like-for-like replacement. Always verify the panelboard's bus rating, interrupting capacity requirements, and that the 277V rating aligns with your system voltage before installation. When in doubt, share your panelboard details with us and we'll help confirm the fit.