The LAD9V0A is an electrical interlock from the Schneider TeSys Deca range, designed to snap onto LC1D09 through LC1D32 contactors. It adds a 3-pole interlock block that mechanically prevents two contactors from closing simultaneously — a standard requirement for reversing motor starters or any circuit where simultaneous closure would create a phase-to-phase short.
Built to EN/IEC 60947-4-1 and GB/T 14048.4, the LAD9V0A meets the contactor and motor-starter standard that governs coordination under short-circuit conditions and switching performance. That means it carries the same certification pedigree as the contactor it mounts to — no hidden compliance gap for a panel destined for a CE or CCC jurisdiction.