The 21.305.0257.0 is a four-pole, two-stage electrical connector block (4E / 2DS GW) manufactured by Wieland Electric from glow-wire resistant material compliant with IEC 60335-1 standard. The connector features a total length of 14.0 mm with a single row of 8 contact positions (I1 = 1x8 = 8) and is designed in pure white color similar to RAL 9010. The product incorporates dimensional specifications including a width of 3.35 mm, height of 8.5 mm, and depth of 2.5 mm, with tolerancing according to DIN 7167 envelope principle. This connector block is suitable for industrial electrical applications requiring reliable multi-stage connection capabilities with enhanced thermal resistance properties.