Schneider Electric LA1-LC021 Auxiliary Contact Block

The Schneider Electric Telemecanique LA1-LC021 Auxiliary Contact Block adds two normally open and one normally closed auxiliary contacts to TeSys Integral contactor breakers, enabling instant status feedback and interlocking for control circuits. Mount on the right side of compatible TeSys Integral contactors and use in MCCs, conveyors, pumps, compressors, packaging machinery, and industrial control panels to expand control circuits and improve machine control reliability. Technical specs include 2 NO + 1 NC configuration, instantaneous operation, Ue up to 690 VAC, Ui 690 VAC, and Ith 6 A, with screw clamp terminals for 1 × 2.5 mm² or 2 × 1.5 mm² conductors. Part number LA1 LC021 (LA1LC021) comes from Telemecanique (Schneider Electric) within the TeSys Integral (LA1LC) family. Common replacements include Siemens 3RH29 and Allen-Bradley 100-S.