supply of heavy duty master controller fitted in ms enclosure duly powder coated with 4 steps minimum 6 cams 40 amps rating contacts provided with spring return arrangement, suitable for eot cranesheavy duty master controller fitted in ms enclosure duly powder coated with 4 steps minimum 6 cams 40 amps rating contacts provided with spring return arrangement, suitable for eot cranes,heavy duty master controller fitted in ms enclosure duly powder coated with 4 steps minimu m 6 cams 40 amps rating contacts provided with spring return arrangement, suitable for eot cranes [ wa rranty period: 30 months after the date of delivery ] ]