Microprocessor Based Softstarter Density: 1.26 Gram Per Millilitre (G/ml)

Microprocessor Based SoftstarterApplication The PST range is a microprocessor based softstarter designed with the latest technology for soft start and soft stop of motors. The PST Softstarter has several advanced motor protection features as standard.The four button keypad and the logic structure of the menu make the installation, commissioning and operation easy. It is possible to choose between 14 different languages.The PST Softstarter can be used with or without a by-pass contactor except for the larger sizes PSTB370 ... PSTB1050 where the by-pass contacotr is alreay buit-in.The PSt Softstarter can be selected according to the rated motor power in normal duty applications like pumps, compressors, elevators, escalators, short conveyor belts and bow thrusters.For heavy duty applications like centrifugal fans, crushers, mixers, mills, stirrers and long conveyor belts, select a softstarter from Description Wide main voltage range 208 - 690 V ACWide supply voltage range 100 - 250 V, 50/6 HzCurrent ratings 30 to 1050 A (In Line) and 52 ... 1810 A (Inside Delta)Same unit can be used for both In Line and Inside Delta connectionPremium adjustable Softstarter functions like start/stop ramp. kick start, jog, step down voltage and sequential starts.Current limit adjustable between 2-7 x leThermistor (PTC) supervision of motor windingReal time clockLogging of last 20 events with time markingPrepared for fieldbus communicationMotor overload protection with simulated motor temperature from measured current. Select between 10A, 10, 20 and 30Locked rotor protectionMotor underload protectionPhase imbalance protectionPhase reversal protectionTorque controlAnalog output