Schneider Electric S48818 Rating Plug

Schneider Electric’s S48818 Rating Plug is a plug‑in trip setting accessory that configures the current rating of compatible Square D circuit breakers and motor starters. Installed in the device accessory slot by plug‑in installation, it defines the trip/overload rating to support selective coordination and proper fault response in power distribution, motor control centers, and panelboards across manufacturing facilities, industrial plants, HVAC systems, pump panels, and commercial buildings. Manufactured by Schneider Electric / Square D, the model S48818 functions to set or configure the trip/overload rating on compatible devices, with compatibility limited to Square D breakers and starters that accept rating plug accessories; mounting is in the device accessory slot and it bears UL/CSA certification where applicable; common replacements include Square D S48817, S48819, and Schneider Electric GV2ME Series.