supply of push button operated, wall mounting type, automatic star-delta starter with short circuit protection, for 50hp motor,push button operated, wall mounting type, automatic star-delta starter with short circuit protection, for 50hp motor,,push button operated, wall mounting type, automatic star-delta starter with short circuit pro tection, for 50hp motor, relay range 52-75a, conforming to is/iec 60947-4-1 or latest with an adjustable au tomatic change over timing relay for opening the star contactor and closing the delta contactor in a pre-set time. the contactors and other components of the starter shall be mounted inside the panel. [ warranty p eriod: 12 months after the date of delivery ] ]