TeSys Giga Switch Module – Obsolete, 1050A AC-1
The Schneider LA9G3TA is a 3-pole switch module in the TeSys Giga range, rated for 1050 A AC-1 and 800 A AC-3 at 440 V, 40 °C. It ships as a set of three modules with bolted connections, intended for LC1G630...800 contactors.
Comparing with LA9G3SA – Current Handling
If your BOM was designed for LA9G3TA and you consider LA9G3SA as a downgrade, verify the load current stays below 700 A AC-1. The physical footprint and connection method are identical across the LA9G series, so the swap is mechanically straightforward – the constraint is purely the current rating.
Dimensions & Environment
The module measures 8.0 in deep, 11.2 in wide, 5.02 in tall – consistent with other TeSys Giga switch modules. It operates at -13 to 140 °F and stores from -76 to 176 °F. Meets EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and GB/T 14048.4 standards. The kit contains three modules – no separate parts to order. Bolted terminals accept standard busbar or cable lugs.