Schneider Electric LADT4 Time Delay Auxiliary Contact Block

The Schneider Electric LADT4 Time Delay Auxiliary Contact Block adds an adjustable on-delay timing function and an additional contact pair to TeSys D and TeSys F contactors and CAD control relays, enabling precise sequencing in industrial motor control. It offers 1 normally open and 1 normally closed contact with an on-delay operation and a time-delay range of 10 to 180 seconds, rated for 690 VAC (25–400 Hz; 600 VAC UL/CSA listings). The block supports a conventional thermal current (Ith) of 10 A at 60°C, with rated operational currents of 6 A at 120 VAC and 1.04 A at 690 VAC for AC-15, and 0.55 A at 125 VDC and 0.1 A at 600 VDC for DC-13; insulation voltage (Ui) is 690 VAC (IEC) and 600 VAC (UL/CSA). It mounts on the front of equipment with clip-on mounting and uses screw-clamp terminals, and is engineered for up to 5 million mechanical cycles. This time-delay auxiliary contact block is designed for industrial motor control, automation systems, and electrical control panels, and is compatible with TeSys D LC1D contactors, TeSys F LC1F contactors, CR1F contactors, and CAD control relays. Common applications include MCCs, conveyors, pumps, compressors, packaging lines, HVAC, material handling, robotics, and production lines where dependable timer-based sequencing and electrical interlocking are essential, providing a targeted solution for industrial motor control requirements.