Schneider Electric LA1-D04 Auxiliary Contact Block

The Schneider Electric Telemecanique LA1-D04 Auxiliary Contact Block provides four normally closed auxiliary contacts to expand the control circuits of TeSys D and TeSys F contactors in industrial motor control, and it mounts on the front of the device for convenient integration. It features four NC contacts with instantaneous operation and is rated up to 690 VAC (Ue) across 25–400 Hz, with a conventional free-air thermal current Ith of 10 A at 60°C; its AC-15 rating is 6 A at 120 VAC and 1.04 A at 690 VAC, and it uses screw clamp terminals for reliable field wiring. Designed for use in MCCs, conveyors, pumps, compressors, HVAC and automation panels, it is compatible with TeSys D (LC1D), TeSys F (LC1F), and CAD control relays, and carries IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No. 60947-5-1 certifications along with UL, CSA, CB, CCC, EAC and UKCA marks; common replacements include Schneider Electric LADN04, Siemens 3RH2921, and Allen-Bradley 100-S auxiliary contact blocks.