We manufacture Resistance Boxes and Master Controller for Cranes and Electric Traversers. These resistance Boxes and Master Controllers are manufactured as per IS Specifications. Resistance Elements are stainless steel punched grid or stainless steel or Nichrome wire wound over porcelain threaded tubes and assembled and connected as required by the customers. The boxes are well ventilated. Master Controllers are made for specific sequence diagrams. Contacts are rated 25A at 250V AC.