Ferroxcube E cores and accessories E55/28/21 COIL FORMERS General data for E55/28/21 coil former without pins PARAMETER SPECIFICATION Coil former material polyamide (PA6.6), glass reinforced, flame retardant in accordance with “UL 94-HB”; UL file number E41613(M) Maximum operating temperature 130 C, “IEC 60085”, class B 3 0.1 (5 ) 2 0.1 (6 ) handbook, full pagewidth 5 0.1 21.7 20 0 0.2 0.2 0 0 0 23.8 0.2 43.5 0.2 CBW064 1 0.1 33.2 0.2 0 35.7 0.1 0.2 17.6 0 24.2 0.2 0 37 0.2 38.8 0.2 Dimensions in mm. Fig.2 E55/28/21 coil former (E). Winding data for E55/28/21 coil former without pins (E) NUMBER OF SECTIONS MINIMUM WINDING AREA (mm2) MINIMUM WINDING WIDTH (mm) AVERAGE LENGTH OF TURN (mm) 1 250 33.2 116 TYPE NUMBER CP-E55/28/21-1S