LC1F1504 Electric TeSys F LC1F 4 Pole Contactor – 150 A, 4NO. Electric motor sizes are increasing, especially in applications such as HVAC+R and large industrial processes. In response, Schneider Electric is extending the TeSys range of block type contactors for AC3 duty. TeSys F Contactors from Schneider Electric combine long mechanical and electrical life to offer a high reliable contactor.