Key Technical Parameters Parameter Specification Type WDU 10N Version Feed-through terminal block, Screw connection, 10 mm², 57 A, 500 V Color Dark beige / Blue / Black Dimensions & Weight Parameter Specification Width 9.9 mm (0.39 inch) Height 44 mm Depth 37.7 mm Depth including DIN rail 38.5 mm Net weight Approx. 11 g Electrical Specifications (IEC) Parameter Specification Rated cross-section 10 mm² Rated voltage 500 V Rated current 57 A Rated impulse withstand voltage 6 kV Pollution severity 3 Connection Data Parameter Specification Connection type Screw connection Number of connections 2 Clamping screw M 4 Stripping length 12 mm Tightening torque, min. 1.2 Nm Tightening torque, max. 1.9 Nm Blade size 1.0 x 5.5 mm Connection direction on side (horizontal) Wire Connection Cross-Sections Conductor Type Min Max Solid wire 1.5 mm² (AWG 16) 16 mm² (AWG 6) Stranded wire 1.5 mm² 16 mm² Fine-stranded with ferrule 1.5 mm² 16 mm² Twin wire-end ferrules 1.5 mm² 6 mm² AWG range AWG 16 AWG 6 Material & Environmental Parameter Specification Material Wemid Flammability rating UL 94 V-0 Continuous operating temp., min. -60 °C Continuous operating temp., max. 130 °C Storage temperature 10 °C...40 °C Hazardous Location Ratings (ATEX/IECEx) Parameter Specification Explosion-tested version Yes Certificate No. (ATEX) DEMKO14ATEX1338U Certificate No. (IECEX) IECEXULD14.0005U Max. voltage (ATEX/IECEX) 500 V Current (ATEX/IECEX) 57 A Wire cross section max. (ATEX/IECEX) 10 mm² Marking EN 60079-7 Ex eb II C Gb UL/cURus Ratings (N-type) Parameter Specification Voltage (UL) 300 V Current (UL) 40 A Wire size (UL) 16...6 AWG Mounting & Configuration Parameter Specification Mounting rail TS 35 Mounting type Snap-on End cover plate required Yes Open sides Right Number of potentials 1 Number of levels 1 Standards IEC 60947-7-1 RoHS status Compliant