- Product type and purpose 40A 380V welding machine switch with 2 poles and 9-pin terminals, designed for control in welding equipment. It functions as an electronic starter and a changeover rotary cam switch. - Model and function Model: KDH 40/1 8. An electronic starter and changeover rotary cam switch that provides reliable control for welding operations. - Electrical rating and compatibility Rated for 40A at 380V, suitable for use with 40A welders at 380V. The 2-pole and 9-pin terminal configuration supports stable connections for the welding machine’s operation. - Key benefits Reliable control for 40A 380V welding setups Stable, secure connections thanks to 2P9T terminal arrangement Simple electronic starter and changeover switching to manage welding process states essential component for 40A 380V welder systems - Notable features Electronic starter capability Changeover rotary cam switch design 2 poles, 9 terminals provide clear wiring paths and robust connection - Practical use scenarios 1) In a workshop, mounting the KDH 40/1 8 as the primary control switch for a 40A 380V welding machine to start, stop, and switch welding modes. 2) As a replacement part in an existing 40A, 380V welding setup to restore reliable control and switching functionality. 3) In a maintenance or service setting, using the KDH 40/1 8 to troubleshoot or upgrade control circuitry for a 40A 380V welder. - Practical considerations Ensure correct wiring to the 2-pole 9-pin terminals according to your welding system’s control diagram. This switch is intended to be used with 40A, 380V welding equipment as described.