Schneider Electric FH16020B U Molded Case Circuit Breaker

Schneider Electric's Square D FH16020B-U is a 1-pole molded‑case circuit breaker from the FH family, specified for 277V AC and 20 A to protect a single‑phase branch circuit in commercial panels, with the FH16020B-U suffix indicating a specific variant of the model. This unit uses I‑Line plug‑on mounting for fast, reliable installation in compatible Square D/I‑Line enclosures, and it employs a thermal‑magnetic trip mechanism that coordinates long‑term overload protection with instantaneous response to short circuits. As part of the FH line, the FH16020B-U is designed for line‑side I‑Line connections and load‑side terminations, supporting standard distribution practices in 277V systems and offering a compact, replaceable protection device for 20A circuits in commercial or light industrial environments. With its recognized brand backing and compatibility with Square D panels, the FH16020B-U provides a dependable, industry‑standard option when upgrading or replacing single‑pole protection in 277V installations.