www.DataSheet4U.com P Core Half 150 × 30 Core Large-volume pot core I Unground core for inductive proximity B65949 switches with wide operating distances Rotary transformers for non-contact power and information transmission Inductive power transmission (non-contact charging of electric cars) I Options: a) Ground version for transformers up to 30 kW b) Core height up to 45 mm for transformers up to 100 kW Magnetic characteristics for option a) (per set) 17,3±0,5 130±2,5 1.