Gravity Limit Switches are used for heavy duty E.O.T. Cranes, Wagon shunting devices to prevent over travel. Fortune Roto Control Pvt. Ltd. Manufactures Gravity Limit Switches.
Fortune Roto Control Pvt. Ltd. Also manufactures wide range of switches. Gravity Limit Switches normally remains closed and cuts off power to stop the motor of the crane. The Lever limit switch operates when it reaches a predetermined position when the lever is moved over a projecting member fixed on the girder. The series limit switch is fitted with four sets of contacts, which cuts off two phases of the motor in either direction and is suitable for 500v.A.C. 50 cycles/sec. Supply system. The limit switch contacts are automatically reset when the lever returns to zero position due to spring action.