Schneider Electric LA1-D31 Contact Block

Schneider Electric LA1-D31 is an auxiliary contact block designed for TeSys D contactors that adds three normally open (NO) circuits and one normally closed (NC) circuit to the controller logic, expanding signaling, interlocking, and control options without replacing the main contactor. Configured for top-mount installation and wired through screw-clamp terminals, the LA1-D31 tucks neatly into a TeSys D assembly, preserving a compact footprint while delivering reliable field-wiring connections. The accessory is specified for use with LC1D09 through LC1D150 contactors (and LP1D series motor starters), enabling extended control logic in motor-start schemes and machine automation where extra contact points are required. With Schneider Electric’s TeSys family, the LA1-D31 integrates into the same control ecosystem as the main contactor, offering a consistent mechanical fit and electrical interface for modular control blocks.