Square D by Schneider Electric EH14020 is a 20 A, 1-pole plug-on molded‑case circuit breaker for NEH panelboards, rated for 277 VAC with a 14 kA interrupting capacity at 277 VAC. It accepts 14–8 AWG aluminum or copper conductors and uses a thermal‑magnetic trip mechanism for reliable short‑circuit protection. This EH series device is designed for plug‑on mounting into compatible NEH panelboards, providing single‑pole protection for a 277 V branch circuit in commercial electrical distributions.
